.net中三个进程完成后如何执行一个方法

How to execute a method after completion of three processes in .net

我是 运行 三个相同的进程,通过使用 Process.start 并传递不同的 arguments.I 需要一种逻辑,就像只有在完成这些进程后我才必须执行最后两个方法named fourthmethod();sendmail();.How to do this.The 现有逻辑一直在抛出这两个方法,但我只需要在三个过程完成后即三个方法 firstmethod();secondmethod(); , thirdmethod(); 此代码显示触发三个不同的进程

 // three same test.exe process
    for(int i=0;i<3;i++)
    {
    Process.Start("test.exe",i);
    }

在test.exe主方法中

Main(strin[] args)
{
if(args[0]==0)
{
firstmethod();
}
if(args[0]==1)
{
secondmethod();
}
if(args[0]==2)
{
thirdmethod();
}
fourthmethod();
sendmail();
}

One Way to do it :)

Updated Code :

 // three same test.exe process
    for(int i=0;i<4;i++)   // the two method should execute only after 3 processes
    {
    Process.Start("test.exe",i);
    }

Updated code Test.exe

Main(strin[] args)
{
if(args[0]==0)
{
firstmethod();
}
if(args[0]==1)
{
secondmethod();
}
if(args[0]==2)
{
thirdmethod();
}
if(args[0]==3)    // i shall increment to 3 only if the first three processes are ran 
{ 
fourthmethod();
sendmail();
 } 
}
using System;
using System.Diagnostics;

class Program
{
  static int count = 0;
  static object obj = new object();
  static void Main(string[] args)
  {
    Process[] Processes = new Process[3];
    for (int i = 0; i < 3; i++)
    {
        Processes[i] = Process.Start("notepad.exe");
        Processes[i].EnableRaisingEvents = true;
        Processes[i].Exited += Program_Exited;
    }
    Console.ReadLine();
  }

  private static void Program_Exited(object sender, System.EventArgs e)
  {
    lock (obj)
    {
        count++;
    }
    if (count == 3)
        Console.WriteLine("Finised");
  }
}