判断程序是否在运行

using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Diagnostics;
using System.Collections;

namespace DataUpper
{
static class Program
{
/**//// <summary>
/// 应用程序的主入口点。
/// </summary>
[STAThread]
static void Main()
{
int iProcessNum = 0;

foreach (Process singleProc in Process.GetProcesses())
{
if (singleProc.ProcessName == Process.GetCurrentProcess().ProcessName)
{
iProcessNum += 1;
}
}

if (iProcessNum > 1)
{
MessageBox.Show("该程序已经在运行中!", "天科多协议处理子程序", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new DataUpper());
}
}
}
}





string name = "aaa";//程序进程名称
int ProgressCount = 0123456;//判断进程是否运行的标识
Process[] prc = Process.GetProcesses();
foreach(Process pr in prc) //遍历整个进程
{
if (name == pr.ProcessName) //如果进程存在
{
ProgressCount = 0; //计数器清空
return;
}
}
if(ProgressCount!=0)//如果计数器不为0，说名所指定程序没有运行
{
try
{
//调用外部程序
Process MyProcess = new Process();
MyProcess.StartInfo.FileName = "d:/aaa.exe";
MyProcess.StartInfo.Verb = "Open";
MyProcess.StartInfo.CreateNoWindow = true;
MyProcess.Start();
}
catch(Exception d)
{
MessageBox.Show(d.Message+"","提示!!!!");
}
}
else
{
MessageBox.Show("对不起,本地已经有系统正在运行!/n.","提示",MessageBoxButtons.OK,MessageBoxIcon.Warning);
}