使用handle.exe查询指定文件被占用的进程

微软提供的查询进程利器：handle.exe

下载地址：https://docs.microsoft.com/zh-cn/sysinternals/downloads/handle

下面代码示例查询占用xx.doc的进程：

string fileName = @"E:\xx.doc";
Process handlePro = new Process();
handlePro.StartInfo.FileName = @"E:\handle.exe";
handlePro.StartInfo.Arguments = fileName + " /accepteula";
handlePro.StartInfo.UseShellExecute = false;
handlePro.StartInfo.RedirectStandardOutput = true;
handlePro.Start();
handlePro.WaitForExit();
string outputTool = handlePro.StandardOutput.ReadToEnd();

Regex reg = new Regex(@"(?<=pid:).*?(?=type:)");
foreach (Match match in reg.Matches(outputTool))
{
   int pid = int.Parse(match.Value.Trim());
   Process pro = Process.GetProcessById(pid);
   string pn = pro.ProcessName;
}

获得进程后可以进行后续相关的操作，kill进程等。