blocks|key|1208508|text|我建议您将代码块封装在#ifdef+SOMETHING和#endif中，然后当您想要在编译中包含该代码块时，在项目设置中定义SOMETHING。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1208509|entityMap^0|B|G|S|6|1Q|9|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

I would suggest enclosing your blocks in <code>#ifdef SOMETHING</code> and <code>#endif</code>, and then defining <code>SOMETHING</code> in your project settings when you want to include that block in your compile.

blocks|key|994226|text|您需要预处理器指令或条件编译语句。你可以在here上读到他们的相关信息。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|994227|该链接中的一个示例：|994228|#define+TEST
using+System;
public+class+MyClass+
{+
++++public+static+void+Main()+
++++{
++++++++#if+(TEST)
++++++++++++Console.WriteLine("TEST+is+defined");+
++++++++#else
++++++++++++Console.WriteLine("TEST+is+not+defined");
++++++++#endif
++++}
}|code-block|syntax|javascript|994229|只有在代码顶部定义了TEST时，代码才会被编译。许多开发人员使用#define+DEBUG，这样他们就可以启用调试代码，并只需更改顶部的一行代码即可再次删除代码。|994230|entityMap|0|LINK|mutability|MUTABLE|url|http://www.csharphelp.com/2005/12/c-languages-preprocessor-directives/^0|L|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@$A|V|B|W|1|X]]|C|$]]|$1|D|3|E|5|6|7|Y|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|Z|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|9|@]|C|$]]|$1|M|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]]]

You need preprocessor directives, or conditional compile statements. You can read about them <a href="http://www.csharphelp.com/2005/12/c-languages-preprocessor-directives/" rel="noreferrer">here</a>.

An example from that link:

<pre><code>#define TEST
using System;
public class MyClass 
{ 
 public static void Main() 
 {
 #if (TEST)
 Console.WriteLine("TEST is defined"); 
 #else
 Console.WriteLine("TEST is not defined");
 #endif
 }
}
</code></pre>

The code is only compiled if TEST is defined at the top of the code. A lot of developers use #define DEBUG so they can enable debugging code and remove it again just by altering that one line at the top.

blocks|key|1208614|text|您可以使用带有#if的preprocessor+directives|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1208615|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/4y6tbswk.aspx|1|http://msdn.microsoft.com/en-us/library/ed8yd1ha%2528VS.71%2529.aspx^0|7|3|0|B|N|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

You can use <a href="http://msdn.microsoft.com/en-us/library/ed8yd1ha%28VS.71%29.aspx" rel="nofollow noreferrer">preprocessor directives</a> w/ <a href="http://msdn.microsoft.com/en-us/library/4y6tbswk.aspx" rel="nofollow noreferrer">#if</a>

blocks|key|994325|text|如果它们是用于调试的，那么唯一可接受的解决方案是在这些代码周围加上：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|994326|#ifdef+DEBUG

#endif|code-block|syntax|javascript|994327|这可确保在调试模式下编译时包含代码，但在发布模式下排除代码。|994328|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If they are for debugging, then the only acceptable solution is to surround such code with:

<pre><code>#ifdef DEBUG

#endif
</code></pre>

This ensures that the code is included when you compile in debug mode but excluded in release mode.

blocks|key|1208707|text|您可能想要考虑将这些调试功能完全移出类--让您的类在Debug和Release模式之间“改变形状”可能是一个真正令人头疼的问题，并且可能很难诊断问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1208708|您可以考虑创建一个包含所有调试助手的单独的"Debug“程序集--然后只需确保您可以从解决方案中排除它，并在没有它的情况下成功构建。|1208709|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

You may want to consider moving these debugging functions out of the classes entirely--having your classes "change shape" between Debug and Release mode can be a real headache and can be difficult to diagnose problems.

You could consider creating a seperate "Debug" assembly which contains all your debugging helpers--then just make sure you can exclude it from the solution and build successfully without it.

blocks|key|1208732|text|将属性[Conditional("DEBUG")]添加到只希望在调试版本中执行的方法。有关更多详细信息，请参阅here。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1208733|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.conditionalattribute^0|3|M|1J|4|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@$9|O|A|P|B|C]]|D|@$9|Q|A|R|1|S]]|E|$]]|$1|F|3|-4|5|6|7|T|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]]]

Add the attribute <code>[Conditional("DEBUG")]</code> onto methods you only want to have execute in your debug build. See <a href="https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.conditionalattribute" rel="nofollow noreferrer">here</a> for more detailed information.

blocks|key|994481|text|考虑使用the+Debug+class来有条件地记录日志、断言等。这样做有很多优点。您可以选择在运行时记录(或不记录)。它们将您限制为(主要)不改变行为的操作，解决了@STW的一些(有效)问题。它们允许使用第三方日志记录工具。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|994482|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.diagnostics.debug.aspx^0|4|F|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Consider using <a href="http://msdn.microsoft.com/en-us/library/system.diagnostics.debug.aspx" rel="nofollow noreferrer">the Debug class</a> to conditionally log, assert, etc. There are many advantages to this. You can choose to log (or not) at runtime. They limit you to (mostly) non-behavior-changing actions, addressing some of @STW's (valid) concern. They allow the use of third-party logging tools.

Scattered throughout a software project I am working on are many lines of code that were written for debugging and utility purposes. Before I compile my code, I want a way to select whether or not these blocks of code should be included into my compile (something that won't require navigating the code commenting out). How can I do this?

I'm programming in c# and using Microsoft Visual Studio 2010.

How can I easily exclude certain lines of code from a compile?

Visual Studio

我正在从事的一个软件项目中散布着许多行代码，这些代码是为调试和实用目的而编写的。在我编译代码之前，我想要一种方法来选择这些代码块是否应该包含在我的编译中(不需要导航代码注释掉的东西)。我该怎么做呢？我用c#编程，使用Microsoft Visual Studio2010。

问如何轻松地从编译中排除某些代码行？
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