7.10 函数库调用

#property copyright "Copyright 2022, MetaQuotes Ltd."
#property link      "https://www.mql5.com"

int sum(int num1, int num2)
{
  int s = num1 + num2;
  return s;
}

int sub(int num1, int num2)
{
  int s = num1 - num2;
  return s;
}

// 如果存在根目录MQL5\Include下
#include <Maths.mqh>
// 如果存在子目录下,调用指定的函数库文件
#include <Tools/Maths.mqh>

void OnStart()
  {
    int a = 20;
    int b = 10;
    int c = sum(a ,b);
    Print("c的结果: " + string(c));
    int d = sub(a, b);
    Print("d的结果: " + string(d));

  }