Global Functions

Function Name	Description
Version	Returns the current system version number
Sleep	Sleep function, parameter is the number of milliseconds to pause
IsVirtual	Determines the execution environment, returns true for backtesting environment
Mail	Send email
Mail_Go	Asynchronous version of the Mail function
SetErrorFilter	Filter error logs, parameter is a regular expression string, error logs matching this regex will not be uploaded to the log system
GetPid	Get live trading process ID
GetLastError	Get the most recent error message
GetCommand	Get strategy interaction commands, for strategy interaction control settings please refer to: Interactive Controls
GetMeta	Get the Meta value written when generating the strategy registration code
Dial	Used for raw Socket access
HttpQuery	Send HTTP request
HttpQuery_Go	Asynchronous version of the HttpQuery function
Encode	Data encoding function
UnixNano	Get nanosecond timestamp
Unix	Get second-level timestamp
GetOS	Get system information
MD5	Calculate MD5 hash value
DBExec	Database function for executing SQL statements and performing database operations
UUID	Generate UUID
EventLoop	Listen for events, returns when any WebSocket is readable or concurrent tasks like exchange.Go, HttpQuery_Go are completed, this function is only available for live trading
_G	Persistently save data, this function implements a saveable global dictionary feature. The data structure is a key-value pair table, permanently saved in the docker's local database file
_D	Timestamp processing function, converts millisecond timestamp or Date object to time string
_N	Format floating-point numbers, for example _N(3.1415, 2) will remove digits after the second decimal place of 3.1415, the function returns 3.14
_C	Retry function for interface fault tolerance. Note that for fault tolerance of exchange.GetTicker function, use _C(exchange.GetTicker) instead of _C(exchange.GetTicker())
_Cross	Crossover detection function, _Cross() returns a positive number indicating the number of periods since upward crossover, negative number for downward crossover, 0 means current prices are equal
JSONParse	Parse JSON, can correctly parse JSON strings containing large numeric values, parsing large numbers as string type. The backtesting system does not support the JSONParse() function
SetChannelData	Publish latest status data on a channel for inter-bot communication
GetChannelData	Subscribe to channel data from specified live trading bot for inter-bot communication