学步园

// using System.Diagnostics;private string appName = "calc.exe";/// <summary>/// 1. 启动外部程序，不等待其退出/// </summary>private void button1_Click(object sender, EventArgs e){ Process.Start(appName); MessageBox.Show(String.Format("外部程序 {0} 启动完成！", this.appName), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);}/// <summary>/// 2. 启动外部程序，等待其退出/// </summary>private void button2_Click(object sender, EventArgs e){ try { Process proc = Process.Start(appName); if (proc != null) { proc.WaitForExit(3000); if (proc.HasExited) MessageBox.Show(String.Format("外部程序 {0} 已经退出！", this.appName), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information); else { // 如果外部程序没有结束运行则强行终止之。 proc.Kill(); MessageBox.Show(String.Format("外部程序 {0} 被强行终止！", this.appName), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Exclamation); } } } catch (ArgumentException ex) { MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error); }}/// <summary>/// 3. 启动外部程序，无限等待其退出/// </summary>private void button3_Click(object sender, EventArgs e){ try { Process proc = Process.Start(appName); if (proc != null) { proc.WaitForExit(); MessageBox.Show(String.Format("外部程序 {0} 已经退出！", this.appName), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information); } } catch (ArgumentException ex) { MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error); }}/// <summary>/// 4. 启动外部程序，通过事件监视其退出/// </summary>private void button4_Click(object sender, EventArgs e){ try { // 启动外部程序 Process proc = Process.Start(appName); if (proc != null) { // 监视进程退出 proc.EnableRaisingEvents = true; // 指定退出事件方法 proc.Exited += new EventHandler(proc_Exited); } } catch (ArgumentException ex) { MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error); }}/// <summary>/// 启动外部程序退出事件/// </summary>void proc_Exited(object sender, EventArgs e){ MessageBox.Show(String.Format("外部程序 {0} 已经退出！", this.appName), this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);}