//先使用：
using System.Diagnostics;//再在事件里填入Process proc =Process.Start("Notepad");

//方法一：//调用下面这个方法private void KillProcess(string processName){  System.Diagnostics.Process myproc= new System.Diagnostics.Process();   //得到所有打开的进程try{    foreach(Process thisproc in Process.GetProcessesByName(processName))     {        if(!thisproc.CloseMainWindow())        {            thisproc.Kill();         }    }}catch(Exception ex)   {     //ex.Message 得到异常  }}        //方法二：//在事件里填写System.Diagnostics.Process[] myProcesses = System.Diagnostics.Process.GetProcesses();foreach(System.Diagnostics.Process myProcess in myProcesses)   {     if("sqlservr"==myProcess.ProcessName)      {        myProcess.Kill();        }   }