c#进程操作

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//System.Diagnostics.Process p = new System.Diagnostics.Process();      //p.StartInfo.FileName = @"C:\Program Files (x86)\Tencent\WeChat\WeChat.exe";      //p.StartInfo.UseShellExecute = false;    //是否使用操作系统shell启动      //p.StartInfo.RedirectStandardInput = true;//接受来自调用程序的输入信息      //p.StartInfo.RedirectStandardOutput = true;//由调用程序获取输出信息      //p.StartInfo.RedirectStandardError = true;//重定向标准错误输出      //p.StartInfo.CreateNoWindow = true;//不显示程序窗口      //p.Start();//启动程        Process[] processes = Process.GetProcesses();      foreach (Process item in Process.GetProcesses())      {          if (item.ProcessName.Contains("WeChat"))          {              item.StartInfo.FileName = @"C:\Program Files (x86)\Tencent\WeChat\WeChat.exe";              item.StartInfo.UseShellExecute = false;    //是否使用操作系统shell启动              item.StartInfo.RedirectStandardInput = true;//接受来自调用程序的输入信息              item.StartInfo.RedirectStandardOutput = true;//由调用程序获取输出信息              item.StartInfo.RedirectStandardError = true;//重定向标准错误输出              item.StartInfo.CreateNoWindow = true;//不显示程序窗口              item.Start();//启动程序          }      }

启动

 private void StartQueueExe()
        {
            string filePath = AppDomain.CurrentDomain.BaseDirectory;
            FileInfo file = new FileInfo(filePath);
            //filePath = file.Directory.Parent.Parent.FullName + "\\ZB.QueueSystem\\ZB.QueueSystem.exe";
            filePath = file.Directory.FullName + "\\ZB.QueueSystem\\ZB.QueueSystem.exe";

            System.Diagnostics.Process p = new System.Diagnostics.Process();
            p.StartInfo.FileName = filePath;
            p.StartInfo.UseShellExecute = false;    //是否使用操作系统shell启动
            p.StartInfo.RedirectStandardInput = true;//接受来自调用程序的输入信息
            p.StartInfo.RedirectStandardOutput = true;//由调用程序获取输出信息
            p.StartInfo.RedirectStandardError = true;//重定向标准错误输出
            p.StartInfo.CreateNoWindow = true;//不显示程序窗口
            p.Start();//启动程序
        }

停止

private void KillProcessExists()  
{  
    Process[] processes = Process.GetProcessesByName("AppStart");  
    foreach (Process p in processes)  
    {  
        if (System.IO.Path.Combine(Application.StartupPath, "AppStart.exe") == p.MainModule.FileName)  
        {  
            p.Kill();  
            p.Close();  
        }  
    }  
}  

　　　　　/// <summary>
        /// 关闭进程
        /// </summary>
        /// <param name="processName">进程名</param>
        private void KillProcess(string processName)
        {
            Process[] myproc = Process.GetProcesses();
            foreach (Process item in myproc)
            {
                if (item.ProcessName == processName)
                {
                    item.Kill();
                }
            }

        }

查看是否存在指定进程：

private bool CheckProcessExists()  
{  
    Process[] processes = Process.GetProcessesByName("test");  
    foreach (Process p in processes)  
    {  
        if (System.IO.Path.Combine(Application.StartupPath, "test.exe") == p.MainModule.FileName)  
            return true;  
    }  
    return false;  
}