MT4 / MQ4L entry to the master of EA tutorial lesson two (2) - - MQL language commonly used function account information commonly used functions

double AccountBalance(); // 返回当前账户的余额.
double AccountEquity(); // 返回当前账户的净值.
double AccountFreeMargin(); // 返回当前账户可用预付款.
double AccountMargin(); // 返回当前账户已用预付款.

脚本实例：

//+------------------------------------------------------------------+
//| hello.mq4 |
//| Copyright 2021, MetaQuotes Software Corp. |
//| https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2021, MetaQuotes Software Corp."
#property link "https://www.mql5.com"
#property version "1.00"
#property strict
//+------------------------------------------------------------------+
//| Script program start function |
//+------------------------------------------------------------------+
void OnStart() 
{
     
   double balance=AccountBalance();        // 返回当前账户的余额.
   double Equity=AccountEquity();          // 返回当前账户的净值.
   double FreeMargin=AccountFreeMargin();  // 返回当前账户可用预付款.
   double Margin=AccountMargin();          // 返回当前账户已用预付款.
  
   Print("Account balance = ",balance);
   Print("Account equity = ",Equity);
   Print("Account free margin = ",FreeMargin);
   Print("Account margin ", Margin);
//--- 
  }

脚本运行结果

double AccountBalance();

返回当前账户的余额.

double AccountEquity();

返回当前账户的净值.

double AccountFreeMargin();

返回当前账户可用预付款.

double AccountMargin();

返回当前账户已用预付款.

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