function main() {
    var initAcc = _C(exchange.GetAccount)
    var tbl = {
        "type" : "table", 
        "title" : "表格",
        "cols" : ["项目", "内容"],
        "rows" : [],     
    }
    
    for (var i = 0 ; i < TransactionTimes ; i++) {
        var info = null
        if (Side == 0) {