显示命令行实用程序的帮助

发布于 2024-07-11 21:03:55 字数 1209 浏览 5 评论 0原文

我有一个命令行实用程序，可以从我的网站获得大量下载。我试图显示用户使用 / 时的用法？或 /help 参数。我有一个名为 ShowUsage() 的函数，它在可用参数上有格式良好的文本。

当我在项目属性中使用命令行参数时，我看到 ShowUsage() 从 Visual Studio 2008 中正常调用。但是，从命令行运行时，exe 不显示帮助文本。这是 ShowUsage() 的缩短版本：

private static void ShowUsage()
{
    Console.WriteLine(Environment.NewLine);
    Console.WriteLine("Text File Splitter v1.4.1  released: December 14, 2008");
    Console.WriteLine("Copyright (C) 2007-2008 Hector Sosa, Jr");
    Console.WriteLine("http://www.systemwidgets.com");
    Console.WriteLine("");
}

我在 Google 搜索中尝试了很多不同的方法，但没有一个有效。我知道这一定是一件简单/容易的事情，但就我的一生而言，我无法弄清楚这一点。

编辑：

调用 ShowUsage() 的代码：

if (!Equals(cmdargs["help"], null) || !Equals(cmdargs["?"], null))
{
    ShowUsage();
}

我有一个类将参数解析到 cmdargs 数组中。我确认参数在数组中。这是 ShowUsage() 内部的某些内容阻止显示文本。

我将尝试调试技巧，看看我发现了什么。

我没有在任何地方使用 Console.Out。

d03boy - 只是个人喜好。它使屏幕上的文字不再那么混乱，至少对我来说是这样。

编辑 #2

好的，更多信息...我在 Vista Ultimate 64 位中运行 VS2008。我只是检查了项目属性，它被设置为“Windows 应用程序”。该实用程序是 32 位的。

我将尝试在解决方案中创建一个单独的项目，这是一个真正的控制台程序，正如你们中的一些人建议的那样。

原文

I have a command-line utility that gets quite a bit of downloads from my site. I'm trying to show the usage when a user uses the /? or /help parameters. I have a function called ShowUsage() that has nicely formatted text on the parameters available.

I see that ShowUsage() gets called fine from Visual Studio 2008, when I'm using the command-line parameters in the project properties. However the exe does not display the help text when run from the command-line. Here's a shortened version of ShowUsage():

private static void ShowUsage()
{
    Console.WriteLine(Environment.NewLine);
    Console.WriteLine("Text File Splitter v1.4.1  released: December 14, 2008");
    Console.WriteLine("Copyright (C) 2007-2008 Hector Sosa, Jr");
    Console.WriteLine("http://www.systemwidgets.com");
    Console.WriteLine("");
}

I tried a bunch of different things from my searches in Google, but none are working. I know this has to be something simple/easy, but for the life of me, I can't figure this one out.

EDIT:

The code that calls ShowUsage():

if (!Equals(cmdargs["help"], null) || !Equals(cmdargs["?"], null))
{
    ShowUsage();
}

I have a class that parses the parameters into the cmdargs array. I confirmed that the parameters are in the array. It's something inside ShowUsage() that is preventing from showing the text.

I'm going to try the debug trick, and see what I find.

I'm not using Console.Out anywhere.

d03boy - Just personal preference. It makes the text less cluttered onscreen, at least to me.

EDIT #2

Ok, some more information... I'm running VS2008 in Vista Ultimate 64 bit. I just check the project properties and it is set to "Windows Application." This utility is 32 bit.

I'm going to experiment with creating a separate project in the solution that is a true console program, as some of you have advised.

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小镇女孩 2024-07-18 21:03:55

你能定义“不工作”吗？就是单纯的什么都不做吗？抛出异常？我希望问题出在 Main(...) 方法中 - 即 ShowUsage() 没有被调用。另一个常见问题是没有以正确的配置重建它，因此 bin/release （或其他）不会更新。

您是否已将应用程序构建为控制台可执行文件？即项目属性中的“输出类型”=“控制台应用程序”吗？它需要是为了访问控制台...

有关信息，我发现执行控制台帮助屏幕的最简单方法（一旦超出几行）是将 .txt 文件嵌入到 exe 中；然后我只写出文本文件（如果我想替换tokes，也许仍然使用string.Format）。

或者，还有另一种字符串格式：

    Console.WriteLine(@"
Text File Splitter v1.4.1  released: December 14, 2008
Copyright (C) 2007-2008 Hector Sosa, Jr
http://www.systemwidgets.com

");

Can you define "not working"? Simply not doing anything? Throwing an exception? I would expect the problem to be in the Main(...) method - i.e. ShowUsage() isn't being called. Another common issue is not rebuilding it in the correct configuration, so bin/release (or whatever) isn't updated.

Have you built the app as a console exe? i.e. is the "Output Type" = "Console Application" in project properties? It needs to be in order to access the console...

For info, I find the easiest way to do a console help screen (once it gets beyond a handful of lines) is to embed a .txt file into the exe; then I just write out the text file (perhaps still using string.Format if I want to replace tokes).

Alternatively, there is the alternative string format:

    Console.WriteLine(@"
Text File Splitter v1.4.1  released: December 14, 2008
Copyright (C) 2007-2008 Hector Sosa, Jr
http://www.systemwidgets.com

");

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