oparameter is set totandaortandaTx, theparameter key ` ` diperlukan.

function main(){
    Log(Encode("md5", "raw", "hex", "hello"))
    Log(Encode("sha512", "raw", "base64", "hello"))
    Log(Encode("keccak256", "raw", "hex", "unwrapWETH9(uint256,address)"))

    Log(Encode("raw", "string", "hex", "example"))          // 6578616d706c65
    Log(Encode("raw", "hex", "string", "6578616d706c65"))   // example
}

def main():
    Log(Encode("md5", "raw", "hex", "hello", "", ""))
    Log(Encode("sha512", "raw", "base64", "hello", "", ""))
    Log(Encode("keccak256", "raw", "hex", "unwrapWETH9(uint256,address)", "", ""))

    Log(Encode("raw", "string", "hex", "example", "", ""))
    Log(Encode("raw", "hex", "string", "6578616d706c65", "", ""))

void main(){
    Log(Encode("md5", "raw", "hex", "hello"));
    Log(Encode("sha512", "raw", "base64", "hello"));
    Log(Encode("keccak256", "raw", "hex", "unwrapWETH9(uint256,address)"));
    
    Log(Encode("raw", "string", "hex", "example"));          // 6578616d706c65
    Log(Encode("raw", "hex", "string", "6578616d706c65"));   // example
}

Parameteralgojuga mendukung pengkodean dan dekodean string, sepertitext.encoder.utf8, text.decoder.utf8, text.encoder.gbkdantext.decoder.gbk.

function main(){
    var ret1 = Encode("text.encoder.utf8", "raw", "hex", "hello")     // e4bda0e5a5bd
    Log(ret1)    
    var ret2 = Encode("text.decoder.utf8", "hex", "string", ret1)   
    Log(ret2)

    var ret3 = Encode("text.encoder.gbk", "raw", "hex", "hello")      // c4e3bac3
    Log(ret3)
    var ret4 = Encode("text.decoder.gbk", "hex", "string", ret3)
    Log(ret4)
}

def main():
    ret1 = Encode("text.encoder.utf8", "raw", "hex", "hello", "", "")     # e4bda0e5a5bd
    Log(ret1)    
    ret2 = Encode("text.decoder.utf8", "hex", "string", ret1, "", "")   
    Log(ret2)

    ret3 = Encode("text.encoder.gbk", "raw", "hex", "hello", "", "")      # c4e3bac3
    Log(ret3)
    ret4 = Encode("text.decoder.gbk", "hex", "string", ret3, "", "")
    Log(ret4)

void main(){
    auto ret1 = Encode("text.encoder.utf8", "raw", "hex", "hello");     // e4bda0e5a5bd
    Log(ret1);    
    auto ret2 = Encode("text.decoder.utf8", "hex", "string", ret1);   
    Log(ret2);

    auto ret3 = Encode("text.encoder.gbk", "raw", "hex", "hello");      // c4e3bac3
    Log(ret3);
    auto ret4 = Encode("text.decoder.gbk", "hex", "string", ret3);
    Log(ret4);
}

UnixNano ((()

UnixNano()Mengembalikan timestamp tingkat nanodetik; jika Anda perlu mendapatkan timestamp tingkat milidetik, Anda dapat menggunakan kode berikut:

function main() {
    var time = UnixNano() / 1000000
    Log(_N(time, 0))
}

def main():
    time = UnixNano()
    Log(time)

void main() {
    auto time = UnixNano();
    Log(time);
}

Unix ((()

Unix()Mengembalikan timestamp dalam detik.

function main() {
    var t = Unix()
    Log(t)
}

def main():
    t = Unix()
    Log(t)

void main() {
    auto t = Unix();
    Log(t);
}

GetOS()

GetOS()Mengembalikan informasi tentang sistem di mana docker terletak.

function main() {
    Log("GetOS:", GetOS())
}

def main():
    Log("GetOS:", GetOS())

void main() {
    Log("GetOS:", GetOS());
}

Log output dari docker yang dijalankan olehMac OSdari komputer Apple:

GetOS: darwin/amd64

darwinadalah namaMac OS system.

MD5 ((String)

MD5(String); nilai parameter: jenis string.

function main() {
    Log("MD5", MD5("hello world"))
}

def main():
    Log("MD5", MD5("hello world"))

void main() {
    Log("MD5", MD5("hello world"));
}

Log output:

MD5 5eb63bbbe01eeed093cb22bb8f5acdc3

DBExec ((...)

DBExec(), nilai parameternya bisa berupa string, angka atau boolean, null dan jenis lainnya; return value: objek dengan hasil eksekusi dalam bahasa SQLite.DBExec(), fungsi antarmuka database, melalui melewati parameter, dapat menjalankan database bot (SQLite database).SQLiteSistem dalam database bot menyimpan tabel termasuk:kvdb, cfg, log, profitdanchart; tidak mengoperasikan tabel yang disebutkan di atas.DBExec()hanya mendukung bot asli.

• Mendukung database memori Untuk parameter fungsiDBExec, jikaSqlpernyataan dimulai dengan:, operasi di database memori akan lebih cepat tanpa menulis file.

  function main() {
      var strSql = [
          ":CREATE TABLE TEST_TABLE(", 
          "TS INT PRIMARY KEY NOT NULL,",
          "HIGH REAL NOT NULL,", 
          "OPEN REAL NOT NULL,", 
          "LOW REAL NOT NULL,", 
          "CLOSE REAL NOT NULL,", 
          "VOLUME REAL NOT NULL)"
      ].join("")
      var ret = DBExec(strSql)
      Log(ret)
      
      // Add a piece of data
      Log(DBExec(":INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"))
      
      // Query the data
      Log(DBExec(":SELECT * FROM TEST_TABLE;"))
  }
  

  def main():
      arr = [
          ":CREATE TABLE TEST_TABLE(", 
          "TS INT PRIMARY KEY NOT NULL,",
          "HIGH REAL NOT NULL,", 
          "OPEN REAL NOT NULL,", 
          "LOW REAL NOT NULL,", 
          "CLOSE REAL NOT NULL,", 
          "VOLUME REAL NOT NULL)"
      ]
      strSql = ""
      for i in range(len(arr)):
          strSql += arr[i]
      ret = DBExec(strSql)
      Log(ret)
      
      # Add a piece of data
      Log(DBExec(":INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"))
      
      # Query the data
      Log(DBExec(":SELECT * FROM TEST_TABLE;"))
  

  void main() {
      string strSql = ":CREATE TABLE TEST_TABLE(\
          TS INT PRIMARY KEY NOT NULL,\
          HIGH REAL NOT NULL,\
          OPEN REAL NOT NULL,\
          LOW REAL NOT NULL,\
          CLOSE REAL NOT NULL,\
          VOLUME REAL NOT NULL)";
      auto ret = DBExec(strSql);
      Log(ret);
      
      // Add a piece of data
      Log(DBExec(":INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"));
      
      // Query the data
      Log(DBExec(":SELECT * FROM TEST_TABLE;"));
  }
  

• Buat tabel

function main() {
    var strSql = [
        "CREATE TABLE TEST_TABLE(", 
        "TS INT PRIMARY KEY NOT NULL,",
        "HIGH REAL NOT NULL,", 
        "OPEN REAL NOT NULL,", 
        "LOW REAL NOT NULL,", 
        "CLOSE REAL NOT NULL,", 
        "VOLUME REAL NOT NULL)"
    ].join("")
    var ret = DBExec(strSql)
    Log(ret)
}

def main():
    arr = [
        "CREATE TABLE TEST_TABLE(", 
        "TS INT PRIMARY KEY NOT NULL,",
        "HIGH REAL NOT NULL,", 
        "OPEN REAL NOT NULL,", 
        "LOW REAL NOT NULL,", 
        "CLOSE REAL NOT NULL,", 
        "VOLUME REAL NOT NULL)"
    ]
    strSql = ""
    for i in range(len(arr)):
        strSql += arr[i]
    ret = DBExec(strSql)
    Log(ret)

void main() {
    string strSql = "CREATE TABLE TEST_TABLE(\
        TS INT PRIMARY KEY NOT NULL,\
        HIGH REAL NOT NULL,\
        OPEN REAL NOT NULL,\
        LOW REAL NOT NULL,\
        CLOSE REAL NOT NULL,\
        VOLUME REAL NOT NULL)";
    auto ret = DBExec(strSql);
    Log(ret);
}

• Operasi penambahan, penghapusan, kueri dan modifikasi yang tercatat dalam tabel

function main() {
    var strSql = [
        "CREATE TABLE TEST_TABLE(", 
        "TS INT PRIMARY KEY NOT NULL,",
        "HIGH REAL NOT NULL,", 
        "OPEN REAL NOT NULL,", 
        "LOW REAL NOT NULL,", 
        "CLOSE REAL NOT NULL,", 
        "VOLUME REAL NOT NULL)"
    ].join("")
    Log(DBExec(strSql))
    
    // Add a piece of data
    Log(DBExec("INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"))
    
    // Query the data
    Log(DBExec("SELECT * FROM TEST_TABLE;"))
    
    // Modify the data
    Log(DBExec("UPDATE TEST_TABLE SET HIGH=? WHERE TS=?", 110, 1518970320000))    
    
    // Delete the data
    Log(DBExec("DELETE FROM TEST_TABLE WHERE HIGH=?", 110))
}

def main():
    arr = [
        "CREATE TABLE TEST_TABLE(", 
        "TS INT PRIMARY KEY NOT NULL,",
        "HIGH REAL NOT NULL,", 
        "OPEN REAL NOT NULL,", 
        "LOW REAL NOT NULL,", 
        "CLOSE REAL NOT NULL,", 
        "VOLUME REAL NOT NULL)"
    ]
    strSql = ""
    for i in range(len(arr)):
        strSql += arr[i]
    Log(DBExec(strSql))
    
    # Add a piece of data
    Log(DBExec("INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"))
    
    # Query the data
    Log(DBExec("SELECT * FROM TEST_TABLE;"))
    
    # Modify the data
    Log(DBExec("UPDATE TEST_TABLE SET HIGH=? WHERE TS=?", 110, 1518970320000))
    
    # Delete the data
    Log(DBExec("DELETE FROM TEST_TABLE WHERE HIGH=?", 110))

void main() {
    string strSql = "CREATE TABLE TEST_TABLE(\
        TS INT PRIMARY KEY NOT NULL,\
        HIGH REAL NOT NULL,\
        OPEN REAL NOT NULL,\
        LOW REAL NOT NULL,\
        CLOSE REAL NOT NULL,\
        VOLUME REAL NOT NULL)";
    Log(DBExec(strSql));

    // Add a piece of data
    Log(DBExec("INSERT INTO TEST_TABLE (TS, HIGH, OPEN, LOW, CLOSE, VOLUME) VALUES (1518970320000, 100, 99.1, 90, 100, 12345.6);"));
    
    // Query the data
    Log(DBExec("SELECT * FROM TEST_TABLE;"));
    
    // Modify the data
    Log(DBExec("UPDATE TEST_TABLE SET HIGH=? WHERE TS=?", 110, 1518970320000));
    
    // Delete the data
    Log(DBExec("DELETE FROM TEST_TABLE WHERE HIGH=?", 110));
}

UUID ((()

UUID(), mengembalikan UUID unik 32-bit, fungsi ini hanya tersedia untuk bot nyata.

function main() {
    var uuid1 = UUID()
    var uuid2 = UUID()
    Log(uuid1, uuid2)
}

def main():
    uuid1 = UUID()
    uuid2 = UUID()
    Log(uuid1, uuid2)

void main() {
    auto uuid1 = UUID();
    auto uuid2 = UUID();
    Log(uuid1, uuid2);
}

EventLoop (timeout)

EventLoop(timeout), kembali setelah adawebsocketdapat dibaca atauexchange.Go, HttpQuery_Godan tugas paralel lainnya diselesaikan.timeoutjika event set to 0, tunggu event terjadi sebelum kembali. jika lebih besar dari 0, atur event waiting timeout. jika kurang dari 0, kembalikan event terbaru segera. jika object yang dikembalikan tidaknull, yangEventFungsi ini hanya tersedia untuk perdagangan bot nyata.

Panggilan pertamaEventLoopdalam kode akan menginisialisasi mekanisme mendengarkan acara.EventLoopjika event callback dimulai setelah event callback, event sebelumnya akan terlewatkan.EventLooptidak dipanggil pada waktunya untuk penghapusan selama eksekusi program, event callback berikutnya di luar 500 cache akan hilang.EventLoopfungsi tidak akan mempengaruhi antrian cache dariwebsocketpada sistem yang mendasarinya, atau cache dariexchange.Gountuk cache ini, Anda masih perlu menggunakan metode mereka sendiri untuk mengambil data. untuk data yang telah diambil sebelumEventLoopfungsi kembali, tidak ada acara kembali akan dihasilkan dalamEventLoop function.

Tujuan utama dariEventLoopfungsi adalah untuk memberi tahu lapisan strategi bahwa sistem yang mendasari telah menerima data jaringan baru.EventLoopfungsi mengembalikan sebuah peristiwa, Anda hanya perlu untuk melintasi semua sumber data.websocketkoneksi dan objek yang dibuat olehexchange.GoAnda dapat merujuk pada desain perpustakaan kelas open source:link perpustakaan kelas.

function main() {
    var routine_getTicker = exchange.Go("GetTicker")
    var routine_getDepth = exchange.Go("GetDepth")
    var routine_getTrades = exchange.Go("GetTrades")
    
     // Sleep(2000), if the Sleep statement is used here, the subsequent EventLoop function will miss the previous events, because after waiting for 2 seconds, the concurrent function has received the data, and the EventLoop monitoring mechanism will start later, and these events will be missed
     // Unless you start calling EventLoop(-1) on the first line of code, first initialize the listening mechanism of EventLoop, you will not miss these events

     // Log("GetDepth:", routine_getDepth.wait()) If the wait function is called in advance to get the result of the concurrent call of the GetDepth function, the event that the GetDepth function receives the request result will not be returned in the EventLoop function
    var ts1 = new Date().getTime()
    var ret1 = EventLoop(0)
    
    var ts2 = new Date().getTime()
    var ret2 = EventLoop(0)
    
    var ts3 = new Date().getTime()
    var ret3 = EventLoop(0)
    
    Log("The first concurrent task completed was:", _D(ts1), ret1)
    Log("The second concurrent task completed was:", _D(ts2), ret2)
    Log("The third concurrent task completed was:", _D(ts3), ret3)
    
    Log("GetTicker:", routine_getTicker.wait())
    Log("GetDepth:", routine_getDepth.wait())
    Log("GetTrades:", routine_getTrades.wait())
}

import time
def main():
    routine_getTicker = exchange.Go("GetTicker")
    routine_getDepth = exchange.Go("GetDepth")
    routine_getTrades = exchange.Go("GetTrades")
    
    ts1 = time.time()
    ret1 = EventLoop(0)
    
    ts2 = time.time()
    ret2 = EventLoop(0)
    
    ts3 = time.time()
    ret3 = EventLoop(0)
    
    Log("The first concurrent task completed was:", _D(ts1), ret1)
    Log("The second concurrent task completed was:", _D(ts2), ret2)
    Log("The third concurrent task completed was:", _D(ts3), ret3)
    
    Log("GetTicker:", routine_getTicker.wait())
    Log("GetDepth:", routine_getDepth.wait())
    Log("GetTrades:", routine_getTrades.wait())

void main() {
    auto routine_getTicker = exchange.Go("GetTicker");
    auto routine_getDepth = exchange.Go("GetDepth");
    auto routine_getTrades = exchange.Go("GetTrades");
    
    auto ts1 = Unix() * 1000;
    auto ret1 = EventLoop(0);
    
    auto ts2 = Unix() * 1000;
    auto ret2 = EventLoop(0);
    
    auto ts3 = Unix() * 1000;
    auto ret3 = EventLoop(0);
    
    Log("The first concurrent task completed was:", _D(ts1), ret1);
    Log("The second concurrent task completed was:", _D(ts2), ret2);
    Log("The third concurrent task completed was:", _D(ts3), ret3);
    
    Ticker ticker;
    Depth depth;
    Trades trades;
    routine_getTicker.wait(ticker);
    routine_getDepth.wait(depth);
    routine_getTrades.wait(trades);
    
    Log("GetTicker:", ticker);
    Log("GetDepth:", depth);
    Log("GetTrades:", trades);
}

Fungsi Terpadu

_G(K, V)

_G(K, V), dengan fungsi kamus global yang dapat disimpan, mendukung backtest dan bot. Setelah backtest, data yang disimpan akan dihapus. Struktur data adalahKVtabel, disimpan dalam file lokal secara permanen. Setiap bot memiliki database yang terpisah. Itu akan selalu ada setelah restart atau ketika docker keluar.Kharus menjadi string, yang tidak sensitif huruf besar.Vbisa menjadi apa sajaJSONKonten yang dapat diserialisasikan._G()disebut dan tidak ada parameter yang diteruskan dalam operasi bot, fungsi_G()mengembalikanIDdari bot saat ini.

function main(){
    // Set a global variable num with a value of 1
    _G("num", 1)     
    // Change a global variable num with the value "ok"
    _G("num", "ok")    
    // Delete global variable num
    _G("num", null)
    // Return the value of the global variable num
    Log(_G("num"))
    // Delete all global variables
    _G(null)
    // Return bot ID 
    var robotId = _G()
}

def main():
    _G("num", 1)     
    _G("num", "ok")    
    _G("num", None)
    Log(_G("num"))
    _G(None)
    robotId = _G()

void main() {
    _G("num", 1);
    _G("num", "ok");
    _G("num", NULL);
    Log(_G("num"));
    _G(NULL);
    // does not support auto robotId = _G();
}

Catatan: Saat menggunakan_Gfungsi untuk menyimpan data, harus digunakan secara wajar sesuai dengan memori dan ruang hard disk perangkat keras, dan tidak boleh disalahgunakan.Memori yang berlebihan problem.

_ D ((Tempstamp, Fmt)

_D(Timestamp, Fmt), mengembalikan string waktu yang sesuai dari timestamp yang ditentukanTimestampadalah tipe numerik, dalam milidetik.Fmtadalah jenis string;Fmtdefault untuk:yyyy-MM-dd hh:mm:ss; kembali nilai: jenis string. Ini mengembalikan string timestamp ((ms) yang ditentukan, dan mengembalikan waktu saat ini tanpa melewati parameter apa pun; misalnya:_D()atau_D(1478570053241), yang format defaultnya adalahyyyy-MM-dd hh:mm:ss.

function main(){
    var time = _D()
    Log(time)
}

def main():
    strTime = _D()
    Log(strTime)

void main() {
    auto strTime = _D();
    Log(strTime);
}

Catatan: Saat digunakan_D()dalamPythonStrategi, kita perlu memperhatikan bahwa parameter yang diteruskan adalah time stamp di kedua (milisekund tingkat time stamp diJavaScriptdanC ++strategi, dan 1 detik = 1000 milidetik). Dalam bot, ketika menggunakan fungsi_D()untuk menganalisis string waktu dengan timestamp yang dapat dibaca, Anda perlu memperhatikan zona waktu dalam sistem operasi dari program docker._D()Menganalisis timestamp sebagai string waktu yang dapat dibaca berdasarkan waktu dari sistem docker.

Sebagai contoh, menganalisis timestamp dari1574993606000dengan kode:

function main() {
    Log(_D(1574993606000))
}

def main():
    # Beijing time server runs: 2019-11-29 10:13:26, and the docker on another server in another region runs this code will get the results: 2019-11-29 02:13:26
    Log(_D(1574993606))

void main() {
    Log(_D(1574993606000));
}

_N(Nomor, Keakuratan)

_N(Num, Precision), sebuah nomor tanda gerak berformat. Nilai parameter:Numadalah tipe numerik;Precisionadalah dari jenis bilangan bulat. Nilai yang dikembalikan: tipe numerik.

Misalnya:_N(3.1415, 2)akan menghapus nilai setelah dua tempat desimal dari3.1415dan kembali3.14.

function main(){
    var i = 3.1415
    Log(i)
    var ii = _N(i, 2)
    Log(ii)
}

def main():
    i = 3.1415
    Log(i)
    ii = _N(i, 2)
    Log(ii)

void main() {
    auto i = 3.1415;
    Log(i);
    auto ii = _N(i, 2);
    Log(ii);
}

Jika Anda perlu mengubah N digit di sebelah kiri titik desimal ke 0, Anda dapat menulis:

function main(){
    var i = 1300
    Log(i)
    var ii = _N(i, -3)
    // Checking the log shows that it is 1000
    Log(ii)
}

def main():
    i = 1300
    Log(i)
    ii = _N(i, -3)
    Log(ii)

void main() {
    auto i = 1300;
    Log(i);
    auto ii = _N(i, -3);
    Log(ii);
}

_C(...)

_C(function, args…)adalah fungsi uji ulang, digunakan untuk toleransi kesalahan antarmuka tentang memperoleh informasi pasar dan memperoleh pesanan yang belum selesai, dll.

Antarmuka akan memanggil fungsi yang ditentukan terus-menerus sampai kembali dengan sukses (parameterfunctionmengembalikan nilai null saat memanggil fungsi yang dirujuk ataufalseakan mencoba panggilan lagi)._ C(exchange. GetTicker), interval uji ulang default adalah 3 detik, yang dapat memanggil fungsi_CDelay (...)untuk mengatur interval uji ulang, seperti_CDelay (1000)berarti fungsi perubahan_CCoba ulang interval ke 1 detik.

Untuk fungsi berikut:

• exchange.GetTicker()
• exchange.GetDepth()
• exchange.GetTrades()
• exchange.GetRecords()
• exchange.GetAccount()
• exchange.GetOrders()
• exchange.GetOrder()
• exchange.GetPosition()

Mereka semua dapat dipanggil untuk melakukan toleransi kesalahan oleh fungsi_C(...). Fungsi_C(function, args...)tidak terbatas pada toleransi kesalahan dari fungsi yang tercantum di atas.functiondikutip tidak disebut, dan perhatikan bahwa itu adalah_C(exchange.GetTicker), tidak_C(exchange.GetTicker()).

function main(){
    var ticker = _C(exchange.GetTicker)
    // Adjust _C() function's retry interval to 2 seconds
    _CDelay(2000)
    var depth = _C(exchange.GetDepth)
    Log(ticker)
    Log(depth)
}

def main():
    ticker = _C(exchange.GetTicker)
    _CDelay(2000)
    depth = _C(exchange.GetDepth)
    Log(ticker)
    Log(depth)

void main() {
    auto ticker = _C(exchange.GetTicker);
    _CDelay(2000);
    auto depth = _C(exchange.GetDepth);
    Log(ticker);
    Log(depth);
}

Untuk fungsi dengan parameter, ketika menggunakan_C(...)untuk melakukan toleransi kesalahan:

function main(){
    var records = _C(exchange.GetRecords, PERIOD_D1)
    Log(records)
}

def main():
    records = _C(exchange.GetRecords, PERIOD_D1)
    Log(records)

void main() {
    auto records = _C(exchange.GetRecords, PERIOD_D1);
    Log(records);
}

Ini juga dapat digunakan untuk penanganan toleransi kesalahan fungsi khusus:

var test = function(a, b){
    var time = new Date().getTime() / 1000
    if(time % b == 3){
        Log("Meet the criteria! ", "#FF0000")
        return true
    }
    Log("Retry!", "#FF0000")
    return false
}

function main(){
    var ret = _C(test, 1, 5)
    Log(ret)
}

import time
def test(a, b):
    ts = time.time()
    if ts % b == 3:
        Log("Meet the criteria!", "#FF0000")
        return True
    Log("Retry!", "#FF0000")
    return False

def main():
    ret = _C(test, 1, 5)
    Log(ret)

// C++ does not support this method for fault tolerance of custom functions.

_Cross ((Arr1, Arr2)

_Cross(Arr1, Arr2)Mengembalikan jumlah periode penyeberangan arrayarr1danarr2. Nomor positif adalah periode kenaikan, dan nomor negatif adalah periode penurunan, dan 0 berarti sama dengan harga saat ini.

Anda dapat mensimulasikan satu set data untuk menguji fungsi_Cross(Arr1, Arr2):

// Fast line indicator
var arr1 = [1,2,3,4,5,6,8,8,9]
// Slow line indicator
var arr2 = [2,3,4,5,6,7,7,7,7]
function main(){
    Log("_Cross(arr1, arr2) : ", _Cross(arr1, arr2))
    Log("_Cross(arr2, arr1) : ", _Cross(arr2, arr1))
}

arr1 = [1,2,3,4,5,6,8,8,9]     
arr2 = [2,3,4,5,6,7,7,7,7]
def main():
    Log("_Cross(arr1, arr2) : ", _Cross(arr1, arr2))
    Log("_Cross(arr2, arr1) : ", _Cross(arr2, arr1))

void main() {
    vector<double> arr1 = {1,2,3,4,5,6,8,8,9};
    vector<double> arr2 = {2,3,4,5,6,7,7,7,7};
    Log("_Cross(arr1, arr2) : ", _Cross(arr1, arr2));
    Log("_Cross(arr2, arr1) : ", _Cross(arr2, arr1));
}

Visualisasikan data simulasi untuk pengamatan

Petunjuk khusus:Fungsi Terbina _Analisis silang dan Instruksi

JSONParse ((strJson)

JSONParse(strJson), fungsi ini digunakan untuk menganalisis string JSON. string JSON yang berisi angka besar dapat dianalisis dengan benar, dan angka besar akan dianalisis ke dalam jenis string. sistem backtesting tidak mendukung fungsi ini.

function main() {
    let s1 = '{"num": 8754613216564987646512354656874651651358}'
    Log("JSON.parse:", JSON.parse(s1))    // JSON.parse: {"num":8.754613216564988e+39}
    Log("JSONParse:", JSONParse(s1))      // JSONParse:  {"num":"8754613216564987646512354656874651651358"}
    
    let s2 = '{"num": 123}'
    Log("JSON.parse:", JSON.parse(s2))    // JSON.parse: {"num":123}
    Log("JSONParse:", JSONParse(s2))      // JSONParse:  {"num":123}
}

import json

def main():
    s1 = '{"num": 8754613216564987646512354656874651651358}'
    Log("json.loads:", json.loads(s1))    # json.loads: map[num:8.754613216564987e+39]
    Log("JSONParse:", JSONParse(s1))      # JSONParse:  map[num:8754613216564987646512354656874651651358]
    
    s2 = '{"num": 123}'
    Log("json.loads:", json.loads(s2))    # json.loads: map[num:123]
    Log("JSONParse:", JSONParse(s2))      # JSONParse:  map[num:123]

void main() {
    auto s1 = "{\"num\":8754613216564987646512354656874651651358}";
    Log("json::parse:", json::parse(s1));
    // Log("JSONParse:", JSONParse(s1));   // The function is not supported
    
    auto s2 = "{\"num\":123}";
    Log("json::parse:", json::parse(s2));
    // Log("JSONParse:", JSONParse(s2));   // The function is not supported
}

Warna khusus

Setiap string pesan dapat berakhir dengan nilai RGB seperti#ff0000, yang mewakili warna latar depan yang akan ditampilkan.#ff0000112233, enam bagian belakang terakhir mewakili warna latar belakang.

function main() {
    Log("Red", "#FF0000")
}

def main():
    Log("Red", "#FF0000")

void main() {
    Log("Red", "#FF0000");
}

Informasi Log

Ketika bot berjalan, informasi log dicatat dalam database bot, yang mengadopsisqlite3database. file database terletak di perangkat dengan program docker, dan lokasi yang tepat dari file adalah dalam kamus dari program docker (robotcontoh: file database bot dengan ID130350ada di direktori../logs/storage/130350 (..adalah kamus di mana docker darirobotterletak), dan nama file database adalah130350.db3.

Log dalam sistem backtest dapat diunduh dengan mengklik [Download Log] tombol di sudut kanan bawah halaman backtest setelah backtest selesai. Ketika Anda perlu mentransfer bot ke docker di server lain, Anda dapat memindahkan file database bot (file database dengan ekstensi db3) ke server target transfer, dan mengatur nama file ke ID bot yang sesuai di platform. Dengan cara ini, semua informasi log bot sebelumnya tidak akan hilang karena migrasi ke perangkat baru.

Catatan

Log(message)berarti menyimpan pesan ke daftar log. Nilai parameter:messagebisa menjadi jenis apapun. Jika Anda menambahkan karakter@Setelah string, pesan akan masuk ke antrian push dan akan didorong ke akun WeChat saat ini dari platform FMZ Quant Trading, dan Email, Telegram dan WebHook di Push settings akan didorong (buka halamanDashboard, RekeningdanTekan pengaturandengan perintah untuk menetapkan ikatan).

Catatan:

• Push tidak didukung di Debug Tool.
• Push tidak didukung di Backtest System.

function main() {
    Log("Hello FMZ Quant!@")
    Sleep(1000 * 5)
    // Add the string to #ff0000, print the log in red, and push the message
    Log("Hello, #ff0000@")
}

def main():
    Log("Hello FMZ Quant!@")
    Sleep(1000 * 5)
    Log("Hello, #ff0000@")

void main() {
    Log("Hello FMZ Quant!@");
    Sleep(1000 * 5);
    Log("Hello, #ff0000@");
}

WebHookdorong:

Gunakan layanan program DEMO ditulis dalamGolang:

package main
import (
    "fmt"
    "net/http"
)

func Handle (w http.ResponseWriter, r *http.Request) {
    defer func() {
        fmt.Println("req:", *r)
    }()
}

func main () {
    fmt.Println("listen http://localhost:9090")
    http.HandleFunc("/data", Handle)
    http.ListenAndServe(":9090", nil)
}

SetWebHook: http://XXX.XX.XXX.XX:9090/data?data=Hello_FMZ

Setelah menjalankan program layanan, eksekusi strategi dan tekan informasi:

function main() {
    Log("msg", "@")
}

def main():
    Log("msg", "@")

void main() {
    Log("msg", "@");
}

Menerima informasi push, dan program layanan mencetak informasi:

listen http://localhost:9090
req: {GET /data?data=Hello_FMZ HTTP/1.1 1 1 map[User-Agent:[Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/xx.x.xxxx.xxx Safari/537.36] Accept-Encoding:[gzip]] {} <nil> 0 [] false 1XX.XX.X.XX:9090 map[] map[] <nil> map[] XXX.XX.XXX.XX:4xxx2 /data?data=Hello_FMZ <nil> <nil> <nil> 0xc420056300}

Cetakbase64gambar yang dikodekanFungsiLogmendukung pencetakan gambar yang dikodekan dibase64, dimulai dengan`, dan berakhir dengan`, misalnya:

function main() {
    Log("`data:image/png;base64,AAAA`")
}

def main():
    Log("`data:image/png;base64,AAAA`")

void main() {
    Log("`data:image/png;base64,AAAA`");
}

Logmendukung pencetakanmatplotlib.pyplotobjek dariPythonlangsung, yaitu, selama objek mengandungsavefigmetode, Anda dapat menggunakanLoguntuk mencetak langsung, misalnya:

import matplotlib.pyplot as plt 
def main(): 
    plt.plot([3,6,2,4,7,1]) 
    Log(plt)

Pergantian bahasa secara otomatis dari log cetakFungsiLogmendukung beralih bahasa; ketika fungsi output teks, itu akan beralih ke bahasa yang sesuai secara otomatis sesuai dengan pengaturan bahasa di halaman platform.

function main() {
    Log("[trans]Chinese|abc[/trans]")
}

def main():
    Log("[trans]Chinese|abc[/trans]")

void main() {
    Log("[trans]Chinese|abc[/trans]");
}

LogProfit ((Profit)

LogProfit(Profit)mencatat nilai laba, mencetak nilai laba, dan menggambar kurva laba sesuai dengan nilai laba.Keuntunganadalah tipe numerik.

Jika fungsi berakhir dengan karakter&, itu hanya dapat menyadari menggambar grafik keuntungan, dan tidak mencetak catatan laba, seperti:LogProfit(10, '&').

LogProfitReset (()

LogProfitReset()menghapus semua log keuntungan; Anda dapat mengambil parameter nilai bilangan bulat untuk menentukan jumlah item yang dipesan.

function main() {
    // Print 30 points on the income chart, then reset, and only retain the last 10 points 
    for(var i = 0; i < 30; i++) {
        LogProfit(i)
        Sleep(500)
    }
    LogProfitReset(10)
}

def main():
    for i in range(30):
        LogProfit(i)
        Sleep(500)
    LogProfitReset(10)

void main() {
    for(int i = 0; i < 30; i++) {
        LogProfit(i);
        Sleep(500);
    }
    LogProfitReset(10);
}

LogStatus ((Msg)

LogStatus(Msg), informasi tidak disimpan dalam daftar log, hanya informasi status saat ini bot diperbarui; itu ditampilkan di atas log dan dapat dipanggil beberapa kali untuk memperbarui status. Nilai parameter:Msgbisa menjadi jenis apapun.

function main() {
    LogStatus('This is a normal status prompt')
    LogStatus('This is a status prompt in red font # ff0000')
    LogStatus('This is a multi-line status message \n I am the second line')
}

def main():
    LogStatus('This is a normal status prompt')
    LogStatus('This is a status prompt in red font # ff0000')
    LogStatus('This is a multi-line status message \nI am the second line')

void main() {
    LogStatus("This is a normal status prompt");
    LogStatus("This is a status prompt in red font # ff0000");
    LogStatus("This is a multi-line status message \nI am the second line");
}

LogStatus(Msg)mendukung pencetakanbase64gambar terkoding, dimulai dengan`dan berakhir dengan`, seperti:LogStatus("`data:image/png;base64,AAAA`"). LogStatus(Msg)mendukung impor langsungPythonItu adalahmatplotlib.pyplotobjek, selama objek berisisavefigmetode, Anda dapat lulus dalam fungsiLogStatus(Msg), seperti:

import matplotlib.pyplot as plt 
def main():
    plt.plot([3,6,2,4,7,1])
    LogStatus(plt) 

Contoh output data di bilah status:

function main() {
    var table = {type: 'table', title: 'Position Information', cols: ['Column1', 'Column2'], rows: [ ['abc', 'def'], ['ABC', 'support color #ff0000']]}
    // After the JSON order is serialized, add the character "`" on both sides, which is regarded as a complex message format (currently supporting tables)
    LogStatus('`' + JSON.stringify(table) + '`')                    
    // Table information can also appear in multiple lines
    LogStatus('First line message\n`' + JSON.stringify(table) + '`\nThird line message')
    // That supports multiple tables displayed at the same time, and that will be displayed in a group with TAB
    LogStatus('`' + JSON.stringify([table, table]) + '`')
    
    // You can also construct a button in the table, and the strategy uses "GetCommand" to receive the content of the cmd attribute                                
    var table = { 
        type: 'table', 
        title: 'Position operation', 
        cols: ['Column1', 'Column2', 'Action'], 
        rows: [ 
            ['abc', 'def', {'type':'button', 'cmd': 'coverAll', 'name': 'close position'}]
        ]
    }
    LogStatus('`' + JSON.stringify(table) + '`') 
    // Or create a separate button 
    LogStatus('`' + JSON.stringify({'type':'button', 'cmd': 'coverAll', 'name': 'close position'}) + '`') 
    // You can customize the button style (button attribute of bootstrap)
    LogStatus('`' + JSON.stringify({'type':'button', 'class': 'btn btn-xs btn-danger', 'cmd': 'coverAll', 'name': 'close position'}) + '`')
}

import json
def main():
    table = {"type": "table", "title": "Position Information", "cols": ["Column1", "Column2"], "rows": [["abc", "def"], ["ABC", "support color #ff0000"]]}
    LogStatus('`' + json.dumps(table) + '`')
    LogStatus('First line message\n`' + json.dumps(table) + '`\nThird line message')
    LogStatus('`' + json.dumps([table, table]) + '`')

    table = {
        "type" : "table", 
        "title" : "Position operation", 
        "cols" : ["Column1", "Column2", "Action"], 
        "rows" : [
            ["abc", "def", {"type": "button", "cmd": "coverAll", "name": "close position"}]
        ] 
    }
    LogStatus('`' + json.dumps(table) + '`')
    LogStatus('`' + json.dumps({"type": "button", "cmd": "coverAll", "name": "close position"}) + '`')
    LogStatus('`' + json.dumps({"type": "button", "class": "btn btn-xs btn-danger", "cmd": "coverAll", "name": "close position"}) + '`')

void main() {
    json table = R"({"type": "table", "title": "Position Information", "cols": ["Column1", "Column2"], "rows": [["abc", "def"], ["ABC", "support color #ff0000"]]})"_json;
    LogStatus("`" + table.dump() + "`");
    LogStatus("First line message\n`" + table.dump() + "`\nThird line message");
    json arr = R"([])"_json;
    arr.push_back(table);
    arr.push_back(table);
    LogStatus("`" + arr.dump() + "`");

    table = R"({
        "type" : "table", 
        "title" : "Position operation", 
        "cols" : ["Column1", "Column2", "Action"], 
        "rows" : [
            ["abc", "def", {"type": "button", "cmd": "coverAll", "name": "close position"}]
        ] 
    })"_json;
    LogStatus("`" + table.dump() + "`");
    LogStatus("`" + R"({"type": "button", "cmd": "coverAll", "name": "close position"})"_json.dump() + "`");
    LogStatus("`" + R"({"type": "button", "class": "btn btn-xs btn-danger", "cmd": "coverAll", "name": "close position"})"_json.dump() + "`");
}

Atur fungsi nonaktif dan deskripsi dari tombol bilah status:

function main() {
    var table = {
        type: "table",
        title: "Test the disable and description functions of status bar buttons",
        cols: ["Column1", "Column2", "Column3"], 
        rows: []
    }
    var button1 = {"type": "button", "name": "button1", "cmd": "button1", "description": "This is the first button"}
    var button2 = {"type": "button", "name": "button2", "cmd": "button2", "description": "This is the second button, set to disabled", "disabled": true}
    var button3 = {"type": "button", "name": "button3", "cmd": "button3", "description": "This is the third button, set to enabled", "disabled": false}
    table.rows.push([button1, button2, button3])
    LogStatus("`" + JSON.stringify(table) + "`")
}

import json
def main():
    table = {
        "type": "table",
        "title": "Test the disable and description functions of status bar buttons",
        "cols": ["Column1", "Column2", "Column3"], 
        "rows": []
    }
    button1 = {"type": "button", "name": "button1", "cmd": "button1", "description": "This is the first button"}
    button2 = {"type": "button", "name": "button2", "cmd": "button2", "description": "This is the second button, set to disabled", "disabled": True}
    button3 = {"type": "button", "name": "button3", "cmd": "button3", "description": "This is the third button, set to enabled", "disabled": False}
    table["rows"].append([button1, button2, button3])
    LogStatus("`" + json.dumps(table) + "`")

void main() {
    json table = R"({
        "type": "table",
        "title": "Test the disable and description functions of status bar buttons",
        "cols": ["Column1", "Column2", "Column3"], 
        "rows": []
    })"_json;
    json button1 = R"({"type": "button", "name": "button1", "cmd": "button1", "description": "This is the first button"})"_json;
    json button2 = R"({"type": "button", "name": "button2", "cmd": "button2", "description": "This is the second button, set to disabled", "disabled": true})"_json;
    json button3 = R"({"type": "button", "name": "button3", "cmd": "button3", "description": "This is the third button, set to enabled", "disabled": false})"_json;
    json arr = R"([])"_json;
    arr.push_back(button1);
    arr.push_back(button2);
    arr.push_back(button3);
    table["rows"].push_back(arr);
    LogStatus("`" + table.dump() + "`");
}

Atur gaya tombol bilah status:

function main() {
    var table = {
        type: "table",
        title: "status bar button style",
        cols: ["default", "raw", "success", "information", "warning", "danger"], 
        rows: [
            [
                {"type":"button", "class": "btn btn-xs btn-default", "name": "default"},
                {"type":"button", "class": "btn btn-xs btn-primary", "name": "raw"},
                {"type":"button", "class": "btn btn-xs btn-success", "name": "success"},
                {"type":"button", "class": "btn btn-xs btn-info", "name": "information"},
                {"type":"button", "class": "btn btn-xs btn-warning", "name": "warning"},
                {"type":"button", "class": "btn btn-xs btn-danger", "name": "danger"}
            ]
        ]
    }
    LogStatus("`" + JSON.stringify(table) + "`")
}

import json
def main():
    table = {
        "type": "table",
        "title": "status bar button style",
        "cols": ["default", "raw", "success", "information", "warning", "danger"], 
        "rows": [
            [
                {"type":"button", "class": "btn btn-xs btn-default", "name": "default"},
                {"type":"button", "class": "btn btn-xs btn-primary", "name": "raw"},
                {"type":"button", "class": "btn btn-xs btn-success", "name": "success"},
                {"type":"button", "class": "btn btn-xs btn-info", "name": "information"},
                {"type":"button", "class": "btn btn-xs btn-warning", "name": "warning"},
                {"type":"button", "class": "btn btn-xs btn-danger", "name": "danger"}
            ]
        ]
    }
    LogStatus("`" + json.dumps(table) + "`")

void main() {
    json table = R"({
        "type": "table",
        "title": "status bar button style",
        "cols": ["default", "raw", "success", "information", "warning", "danger"], 
        "rows": [
            [
                {"type":"button", "class": "btn btn-xs btn-default", "name": "default"},
                {"type":"button", "class": "btn btn-xs btn-primary", "name": "raw"},
                {"type":"button", "class": "btn btn-xs btn-success", "name": "success"},
                {"type":"button", "class": "btn btn-xs btn-info", "name": "information"},
                {"type":"button", "class": "btn btn-xs btn-warning", "name": "warning"},
                {"type":"button", "class": "btn btn-xs btn-danger", "name": "danger"}
            ]
        ]
    })"_json;
    LogStatus("`" + table.dump() + "`");
}

Gabungkan fungsiGetCommand()untuk membangun fungsi interaktif tombol bilah status:

function test1() {
    Log("Call a custom function")
}

function main() {
    while (true) {
        var table = {
            type: 'table',
            title: 'operation',
            cols: ['Column1', 'Column2', 'Action'],
            rows: [
                ['a', '1', {
                    'type': 'button',                       
                    'cmd': "CoverAll",                      
                    'name': 'close position'                           
                }],
                ['b', '1', {
                    'type': 'button',
                    'cmd': 10,                              
                    'name': 'Send value'
                }],
                ['c', '1', {
                    'type': 'button',
                    'cmd': _D(),                          
                    'name': 'Call a function'
                }],
                ['d', '1', {
                    'type': 'button',
                    'cmd': 'test1',       
                    'name': 'Call a custom function'
                }]
            ]
        }
        LogStatus(_D(), "\n", '`' + JSON.stringify(table) + '`')

        var str_cmd = GetCommand()
        if (str_cmd) {
            Log("Received interactive data str_cmd:", "Types of:", typeof(str_cmd), "Value:", str_cmd)
            if(str_cmd == "test1") {
                test1()
            }
        }

        Sleep(500)
    }
}

import json
def test1():
    Log("Call a custom function")

def main():
    while True:
        table = {
            "type": "table", 
            "title": "Operation", 
            "cols": ["Column1", "Column2", "Action"],
            "rows": [
                ["a", "1", {
                    "type": "button", 
                    "cmd": "CoverAll",
                    "name": "close position"
                }],
                ["b", "1", {
                    "type": "button",
                    "cmd": 10,
                    "name": "Send value" 
                }], 
                ["c", "1", {
                    "type": "button",
                    "cmd": _D(),
                    "name": "Call a function" 
                }],
                ["d", "1", {
                    "type": "button",
                    "cmd": "test1",
                    "name": "Call a custom function" 
                }]
            ]
        }

        LogStatus(_D(), "\n", "`" + json.dumps(table) + "`")
        str_cmd = GetCommand()
        if str_cmd:
            Log("Received interactive data str_cmd", "Types:", type(str_cmd), "Value:", str_cmd)
            if str_cmd == "test1":
                test1()
        Sleep(500)

void test1() {
    Log("Call a custom function");
}

void main() {
    while(true) {
        json table = R"({
            "type": "table", 
            "title": "Operation", 
            "cols": ["Column1", "Column2", "Action"],
            "rows": [
                ["a", "1", {
                    "type": "button", 
                    "cmd": "CoverAll",
                    "name": "close position"
                }],
                ["b", "1", {
                    "type": "button",
                    "cmd": 10,
                    "name": "Send value" 
                }], 
                ["c", "1", {
                    "type": "button",
                    "cmd": "",
                    "name": "Call a function" 
                }],
                ["d", "1", {
                    "type": "button",
                    "cmd": "test1",
                    "name": "Call a custom function" 
                }]
            ]
        })"_json;
        table["rows"][2][2]["cmd"] = _D();
        LogStatus(_D(), "\n", "`" + table.dump() + "`");
        auto str_cmd = GetCommand();
        if(str_cmd != "") {
            Log("Received interactive data str_cmd", "Type:", typeid(str_cmd).name(), "Value:", str_cmd);
            if(str_cmd == "test1") {
                test1();
            }
        }
        Sleep(500);
    }
}

Ketika membangun tombol bilah status untuk interaksi, data masukan juga didukung, dan perintah interaktif akhirnya ditangkap olehGetCommand()fungsi. Untuk menambahkaninputitem ke struktur data dari kontrol tombol di bilah status, misalnya, menambahkan"input": {"name": "Number of opening orders", "type": "number", "defValue": 1}untuk{"type": "button", "cmd": "open", "name": "open position"}, Anda dapat membuat tombol muncul kotak dialog dengan kontrol kotak input ketika diklik (Nilai default dalam kotak input adalah 1, yang ditetapkan oleh data defValue), dan Anda dapat memasukkan data untuk mengirim dengan perintah tombol.111dalam kotak input dan mengklik OK,GetCommandfungsi akan menangkap pesan:open:111.

function main() {
    var tbl = {
        type: "table",
        title: "operation",
        cols: ["column 1", "column2"],
        rows: [
            ["Open position operation", {"type": "button", "cmd": "open", "name": "open position", "input": {"name": "number of opening positions", "type": "number", "defValue": 1}}],
            ["Close position operation", {"type": "button", "cmd": "coverAll", "name": "close all positions"}]
        ] 
    }

    LogStatus(_D(), "\n", "`" + JSON.stringify(tbl) + "`")
    while (true) {
        var cmd = GetCommand()
        if (cmd) {
            Log("cmd:", cmd)
        }
        Sleep(1000)
    }
}

import json

def main():
    tbl = {
        "type": "table", 
        "title": "operation", 
        "cols": ["column 1", "column 2"],
        "rows": [
            ["Open position operation", {"type": "button", "cmd": "open", "name": "open position", "input": {"name": "number of opening positions", "type": "number", "defValue": 1}}],
            ["Close position operation", {"type": "button", "cmd": "coverAll", "name": "close all positions"}]
        ]
    }

    LogStatus(_D(), "\n", "`" + json.dumps(tbl) + "`")
    while True:
        cmd = GetCommand()
        if cmd:
            Log("cmd:", cmd)
        Sleep(1000)

void main() {
    json tbl = R"({
        "type": "table", 
        "title": "operation", 
        "cols": ["column 1", "column 2"],
        "rows": [
            ["Open position operation", {"type": "button", "cmd": "open", "name": "open position", "input": {"name": "number of opening positions", "type": "number", "defValue": 1}}],
            ["Close position operation", {"type": "button", "cmd": "coverAll", "name": "close all positions"}]
        ]
    })"_json;

    LogStatus(_D(), "\n", "`" + tbl.dump() + "`");
    while(true) {
        auto cmd = GetCommand();
        if(cmd != "") {
            Log("cmd:", cmd);
        }
        Sleep(1000);
    }
}

Gabungkan sel-sel dalam tabel yang ditarik olehLogStatus(Msg)Fungsi:

• Penggabungan horizontal

  function main() {
      var table = { 
          type: 'table', 
          title: 'position operation', 
          cols: ['Column1', 'Column2', 'Action'], 
          rows: [ 
              ['abc', 'def', {'type':'button', 'cmd': 'coverAll', 'name': 'close position'}]
          ]
      } 
      var ticker = exchange.GetTicker()
      // Add a row of data, merge the first and second cells, and output the ticker variable in the merged cell
      table.rows.push([{body : JSON.stringify(ticker), colspan : 2}, "abc"])    
      LogStatus('`' + JSON.stringify(table) + '`')
  }
  

  import json
  def main():
      table = {
          "type" : "table",
          "title" : "position operation",
          "cols" : ["Column1", "Column2", "Action"],
          "rows" : [
              ["abc", "def", {"type": "button", "cmd": "coverAll", "name": "close position"}]
          ]
      }
      ticker = exchange.GetTicker()
      table["rows"].append([{"body": json.dumps(ticker), "colspan": 2}, "abc"])
      LogStatus("`" + json.dumps(table) + "`")
  

  void main() {
      json table = R"({
          "type" : "table",
          "title" : "position operation",
          "cols" : ["Column1", "Column2", "Action"],
          "rows" : [