C# Process运行cmd命令的异步回显

来源：互联网发布：网络密匙是什么编辑：程序博客网时间：2024/06/05 18:20
以下的代码为new Process() 调用cmd命令，并将结果异步回显到Form的例子：
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Diagnostics;namespace CmdCallbackShow{    // 1.定义委托    public delegate void DelReadStdOutput(string result);    public delegate void DelReadErrOutput(string result);    public partial class Form1 : Form    {        // 2.定义委托事件        public event DelReadStdOutput ReadStdOutput;        public event DelReadErrOutput ReadErrOutput;        public Form1()        {            InitializeComponent();            Init();        }        private void Init()        {            //3.将相应函数注册到委托事件中            ReadStdOutput += new DelReadStdOutput(ReadStdOutputAction);            ReadErrOutput += new DelReadErrOutput(ReadErrOutputAction);        }        private void button1_Click(object sender, EventArgs e)        {            // 启动进程执行相应命令,此例中以执行ping.exe为例            RealAction("ping.exe", textBox1.Text);        }                private void RealAction(string StartFileName, string StartFileArg)        {            Process CmdProcess = new Process();            CmdProcess.StartInfo.FileName = StartFileName;      // 命令            CmdProcess.StartInfo.Arguments = StartFileArg;      // 参数            CmdProcess.StartInfo.CreateNoWindow = true;         // 不创建新窗口            CmdProcess.StartInfo.UseShellExecute = false;            CmdProcess.StartInfo.RedirectStandardInput = true;  // 重定向输入            CmdProcess.StartInfo.RedirectStandardOutput = true; // 重定向标准输出            CmdProcess.StartInfo.RedirectStandardError = true;  // 重定向错误输出            //CmdProcess.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;            CmdProcess.OutputDataReceived += new DataReceivedEventHandler(p_OutputDataReceived);            CmdProcess.ErrorDataReceived += new DataReceivedEventHandler(p_ErrorDataReceived);            CmdProcess.EnableRaisingEvents = true;                      // 启用Exited事件            CmdProcess.Exited += new EventHandler(CmdProcess_Exited);   // 注册进程结束事件            CmdProcess.Start();            CmdProcess.BeginOutputReadLine();            CmdProcess.BeginErrorReadLine();            // 如果打开注释，则以同步方式执行命令，此例子中用Exited事件异步执行。            // CmdProcess.WaitForExit();             }        private void p_OutputDataReceived(object sender, DataReceivedEventArgs e)        {            if (e.Data != null)            {                // 4. 异步调用，需要invoke                this.Invoke(ReadStdOutput, new object[] { e.Data });            }        }        private void p_ErrorDataReceived(object sender, DataReceivedEventArgs e)        {            if (e.Data != null)            {                this.Invoke(ReadErrOutput, new object[] { e.Data });            }        }        private void ReadStdOutputAction(string result)        {            this.textBoxShowStdRet.AppendText(result + "\r\n");        }        private void ReadErrOutputAction(string result)        {            this.textBoxShowErrRet.AppendText(result + "\r\n");        }        private void CmdProcess_Exited(object sender, EventArgs e)        {            // 执行结束后触发        }    }}
0 0