C#实现启动,关闭与查找进程的方法
本文实例讲述了C#实现启动,关闭与查找进程的方法。分享给大家供大家参考,具体如下:
运行效果截图如下:
查找/列出进程很容易,但干掉进程得借助系统命令ntsd.exe,详细用法见下面的代码 :
using System; using System.Diagnostics; using System.Windows.Forms; namespace ProcessDemo { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { this.linkLabel1.Links.Add(0, linkLabel1.Text.Length, "http://www.jb51.net/"); } private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e) { this.linkLabel1.Links[linkLabel1.Links.IndexOf(e.Link)].Visited = true; string target = e.Link.LinkData as string; if (target != null && target.StartsWith("http://")) { Process.Start(target); } } /// <summary> /// 列出所有可访问进程 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnList_Click(object sender, EventArgs e) { Process[] processes; processes = Process.GetProcesses(); string str = ""; foreach (Process p in processes) { try { str = p.ProcessName; this.lst1.Items.Add("名称:" + p.ProcessName + ",启动时间:" + p.StartTime.ToShortTimeString() + ",进程ID:" + p.Id.ToString() ); } catch (Exception ex) { this.lst1.Items.Add(ex.Message.ToString());//某些系统进程禁止访问,所以要加异常处理 } } } private void btnFind_Click(object sender, EventArgs e) { txtFind.Text = txtFind.Text.Trim().ToLower(); if (txtFind.Text.Length > 0) { Process[] arrP = Process.GetProcesses(); foreach (Process p in arrP) { try { if (p.ProcessName.ToLower() == txtFind.Text) { MessageBox.Show(txtFind.Text + " 找到了,PID为 " + p.Id.ToString()); return; } } catch { } } MessageBox.Show("未找到该进程,请检查输入!"); } } private void btnKill_Click(object sender, EventArgs e) { txtFind.Text = txtFind.Text.Trim().ToLower(); int pid = -1; if (txtFind.Text.Length > 0) { Process[] arrP = Process.GetProcesses(); foreach (Process p in arrP) { try { if (p.ProcessName.ToLower() == txtFind.Text) { pid = p.Id; break; } } catch { } } if (pid != -1) { RunCmd("ntsd -c q -p " + pid); } } } /// <summary> /// 运行DOS命令 /// DOS关闭进程命令(ntsd -c q -p PID )PID为进程的ID /// </summary> /// <param name="command"></param> /// <returns></returns> public string RunCmd(string command) { Process p = new Process(); p.StartInfo.FileName = "cmd.exe"; p.StartInfo.Arguments = "/c " + command; p.StartInfo.UseShellExecute = false; p.StartInfo.RedirectStandardInput = true; p.StartInfo.RedirectStandardOutput = true; p.StartInfo.RedirectStandardError = true; p.StartInfo.CreateNoWindow = true; p.Start(); return p.StandardOutput.ReadToEnd(); } } }
另外ntsd.exe在windows vista以上的版本(包括windows 2008)上,出于安全考虑已经被MS给去掉了,但我们可以直接从xp下复制过来继续使用,这里为方便大家给出ntsd.exe的下载。
希望本文所述对大家C#程序设计有所帮助。
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