在Mono中保留退出代码

Question

我有一个使用C＃编写的简单应用程序，它通过命令行参数接受操作数，并通过退出代码报告成功或失败。在Windows XP上通过批处理文件运行时：

MyProg.exe ...//Snip: Command-line Params ... 
echo %errorlevel%; 

返回的退出代码是应用程序设置的值。然而，当同样的应用程序在Linux上使用的bash脚本调用：

mono MyProg.exe ...//Snip: Command-line Params ... 
echo $?; 

报壳退出代码始终是零，而不是由应用程序设置的值。有没有办法在之前捕获应用程序设置的退出代码？

我试过使用Environment.Exit()和Application.Exit()，这个问题似乎没有什么区别。另外，在调用退出函数之前，应用程序明确地设置了Environment.ExitCode。

下面是一个简单的WinForms应用程序抄录此行为：

using System; 
using System.Drawing; 
using System.Windows.Forms; 

namespace ConsoleTest 
{ 
public class Form1 : Form 
{ 
    private System.Windows.Forms.Button button1; 
    private System.Windows.Forms.Button button2; 

    public Form1() 
    { 
    #region Create UI Stuff 
    this.button1 = new System.Windows.Forms.Button(); 
    this.button2 = new System.Windows.Forms.Button(); 
    this.SuspendLayout(); 
    // 
    // button1 
    // 
    this.button1.Location = new System.Drawing.Point(114, 22); 
    this.button1.Name = "button1"; 
    this.button1.Size = new System.Drawing.Size(75, 23); 
    this.button1.TabIndex = 0; 
    this.button1.Text = "ExitZero"; 
    this.button1.UseVisualStyleBackColor = true; 
    this.button1.Click += new System.EventHandler(this.button1_Click); 
    // 
    // button2 
    // 
    this.button2.Location = new System.Drawing.Point(114, 70); 
    this.button2.Name = "button2"; 
    this.button2.Size = new System.Drawing.Size(75, 23); 
    this.button2.TabIndex = 0; 
    this.button2.Text = "ExitOne"; 
    this.button2.UseVisualStyleBackColor = true; 
    this.button2.Click += new System.EventHandler(this.button2_Click); 
    // 
    // Form1 
    // 
    this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 
    this.ClientSize = new System.Drawing.Size(310, 136); 
    this.Controls.Add(this.button2); 
    this.Controls.Add(this.button1); 
    this.Name = "Form1"; 
    this.Text = "Form1"; 
    this.ResumeLayout(false); 
    #endregion 
    } 

    private void button1_Click(object sender, EventArgs e) 
    { 
    Environment.ExitCode = 0; 
    //Environment.Exit(0); 
    Application.Exit(); 
    } 

    private void button2_Click(object sender, EventArgs e) 
    { 
    Environment.ExitCode = 1; 
    //Environment.Exit(1); 
    Application.Exit(); 
    } 
} 
} 

Answer 1

单不重写任何东西。我的测试应用程序：

pakrym@ubuntu:/home/pakrym# cat exit.cs 
class Program 
{ 
public static void Main() 
{ 
     System.Environment.Exit(1); 
} 
} 
pakrym@ubuntu:/home/pakrym# mono ./exit.exe 
pakrym@ubuntu:/home/pakrym# echo $? 
1 
pakrym@ubuntu:/home/pakrym# mono --version 
Mono JIT compiler version 2.6.7 (Debian 2.6.7-5ubuntu3) 
Copyright (C) 2002-2010 Novell, Inc and Contributors. www.mono-project.com 
    TLS:   __thread 
GC:   Included Boehm (with typed GC and Parallel Mark) 
SIGSEGV:  altstack 
Notifications: epoll 
Architecture: x86 
Disabled:  none