blocks|key|36025|text|更新|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|36026|下面的答案实际上要好得多。请参阅here.|36027|初始答案：|36028|有一个小技巧，你可以做。搜索所有NSLog并将其替换为//NSLog，然后再次搜索////NSLog并将其替换为//NSLog。|CODE|36029|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/12382047/831838^0|0|2|0|G|5|0|0|0|5|0|G|5|R|7|15|9|1K|7|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|H|3|I|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|J|3|K|5|6|7|14|8|@$9|15|A|16|B|L]|$9|17|A|18|B|L]|$9|19|A|1A|B|L]|$9|1B|A|1C|B|L]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|1D|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

Update:

The answer bellow is actually much better. See <a href="https://stackoverflow.com/a/12382047/831838">here.</a>

Initial answer:

There is a little hack that you could do. Search for all <code>NSLog</code> and replace them with <code>//NSLog</code> and than do another search for <code>////NSLog</code> and replace them with <code>//NSLog</code>.

blocks|key|3223446|text|等等，还有更简单的方法。如果不需要NSLOG，只需将以下几行添加到常量文件中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3223447|#define+NSLog+++++++++++++++++++++++//|code-block|syntax|javascript|3223448|在你需要的时候对它进行注释。|3223449|编辑:在最新的Xcode中，上面的语句会出错。所以我想最好的办法就是|3223450|#define+NSLog(...)+|3223451|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

wait there is far more simple method. Just add the following lines when you dont need NSLOG to your constants file

<pre><code>#define NSLog //
</code></pre>

and comment it when you need it. 

EDIT: In latest Xcode, you get error on above statement. So I figured out the best way is 

<pre><code>#define NSLog(...) 
</code></pre>

blocks|key|3223568|text|#define+NSLog+if(1)+NSLog|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3223569|如果您不想将日志设置为1为0。|unstyled|3223570|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>#define NSLog if(1) NSLog
</code></pre>

if you dont want log set 1 as 0.

blocks|key|1608233|text|我不得不做一个单独的回答，因为我还不能评论，但当你做查找和替换时，有一件事你真的需要小心，就像这样：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1608234|if(BOOL)
NSLog(@"blah+blah");

[self+doSomething];|code-block|syntax|javascript|1608235|如果您注释掉了nslog，条件将与它下面的方法相关联，如果我错了，请纠正我|1608236|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|$]]

I have to do a separate answer because I cant comment yet, but one thing you really need to be careful about when you do a find and replace is something like this:

<pre><code>if(BOOL)
NSLog(@"blah blah");

[self doSomething];
</code></pre>

If you comment out the nslog, the conditional gets associated with the method below it, correct me if I'm wrong

blocks|key|1608209|text|你得到的答案对你的问题是正确的。但。您真正的问题是如何在特定条件下关闭NSLogs。也就是说，您希望它们显示为调试版本，而不是发布版本。在这种情况下，请尝试按照Cocoa+Is+My+Girlfriend中的描述定义和使用DLog()宏。如果你使用的是Xcode4，那就更简单了，因为Debug和Release构建会定义和取消定义DEBUG，所以你不需要这样做。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1608210|这比注释和取消注释代码行要容易得多。|1608211|entityMap|0|LINK|mutability|MUTABLE|url|http://www.cimgf.com/2010/05/02/my-current-prefix-pch-file/^0|33|6|3Y|5|44|7|4L|5|28|M|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]|$9|W|A|X|B|C]]|D|@$9|Y|A|Z|1|10]]|E|$]]|$1|F|3|G|5|6|7|11|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

The answers you have are correct for your question. But. Your real question is how to turn of NSLogs in certain conditions. i.e. you want them to show for Debug builds, and not for Release builds. In which case try defining and using the <code>DLog()</code> macro as described on <a href="http://www.cimgf.com/2010/05/02/my-current-prefix-pch-file/">Cocoa Is My Girlfriend</a>. If you're using Xcode4 it's even easier because the <code>Debug</code> and <code>Release</code> builds define and undefine <code>DEBUG</code> so you don't have to do that.

It's a lot easier than commenting and uncommenting lines of code.

blocks|key|3507988|text|#ifdef+RELEASE
+++#define+NSLog(...)+do+{+}+while+(0)
#endif|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3507989|是目前为止我找到的最好的方法。|unstyled|3507990|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>#ifdef RELEASE
 #define NSLog(...) do { } while (0)
#endif
</code></pre>

is the best way i found so far.

blocks|key|3223543|text|#定义NSLog(...)|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3223544|将此行添加到.pch文件中|3223545|如果您想要记录日志，请对其进行注释|3223546|entityMap^0|0|D|0|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|P|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|K|$]]

#define NSLog(...)

add this line into your .pch file

if you want log than comment it

blocks|key|3223336|text|您可以在单个查找和替换操作中完成此操作。你可以只做这个简单的正则表达式替换。它同时处理注释(//)行和未注释行。即使前面的注释行有两个以上的正斜杠(如/)而不是rwo，这也是有效的。你可以参考this+link。执行以下步骤。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|3223337|在查找字段中的Workspace|3223338|Style+|unordered-list-item|3223339|
|3223340|+Regular+operation.|3223341|3223342|Type+(/)*(NSLog.*)中选择编辑>查找>查找和替换。|style|CODE|3223343|3223344|在replace字段中执行Find+operation.|3223345|3223346|Type(/)*(NSLog.*)。|3223347|3223348|执行替换操作。|3223349|3223350|Type>G216|3223351|3223352|享受正则表达式的美妙;-)|3223353|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/4778847/find-replace-in-xcode-using-regular-expression/4779387#4779387^0|2O|9|0|0|0|0|0|0|0|5|D|0|0|0|0|4|D|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1E|8|@]|9|@$A|1F|B|1G|1|1H]]|C|$]]|$1|D|3|E|5|6|7|1I|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|1J|8|@]|9|@]|C|$]]|$1|I|3|J|5|6|7|1K|8|@]|9|@]|C|$]]|$1|K|3|L|5|H|7|1L|8|@]|9|@]|C|$]]|$1|M|3|J|5|6|7|1M|8|@]|9|@]|C|$]]|$1|N|3|O|5|H|7|1N|8|@$A|1O|B|1P|P|Q]]|9|@]|C|$]]|$1|R|3|J|5|6|7|1Q|8|@]|9|@]|C|$]]|$1|S|3|T|5|H|7|1R|8|@]|9|@]|C|$]]|$1|U|3|J|5|6|7|1S|8|@]|9|@]|C|$]]|$1|V|3|W|5|H|7|1T|8|@$A|1U|B|1V|P|Q]]|9|@]|C|$]]|$1|X|3|J|5|6|7|1W|8|@]|9|@]|C|$]]|$1|Y|3|Z|5|H|7|1X|8|@]|9|@]|C|$]]|$1|10|3|J|5|6|7|1Y|8|@]|9|@]|C|$]]|$1|11|3|12|5|H|7|1Z|8|@]|9|@]|C|$]]|$1|13|3|-4|5|6|7|20|8|@]|9|@]|C|$]]|$1|14|3|15|5|6|7|21|8|@]|9|@]|C|$]]|$1|16|3|-4|5|6|7|22|8|@]|9|@]|C|$]]]|17|$18|$5|19|1A|1B|C|$1C|1D]]]]

You can do this in a single find and replace operation. You can just do this simple Regular Expression replace. This handles both the commented(//) and non-commented lines. This also works even if the previous commented lines has more than two forward slashes(like ///)instead of rwo. You can refer <a href="https://stackoverflow.com/questions/4778847/find-replace-in-xcode-using-regular-expression/4779387#4779387">this link</a>. Do the following steps.

<ol>
<li>Select Edit > Find > Find and Replace in Workspace</li>
<li>Style => Regular Expression</li>
<li>Type <code>(/)*(NSLog.*)</code> in Find field.</li>
<li>Do the find operation.</li>
<li>Type <code>//\2</code> in the Replace field.</li>
<li>Do the replace operation.</li>
</ol>

Enjoy the beauty of regular expressions ;-)

blocks|key|3223656|text|我会这么做的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3223657|#define+EnableNSLog+1

#if+EnableNSLog+==+0
#define+NSLog+++//
#elif+EnableNSLog+==+1
#warning+Disable+NSLog
#endif|code-block|syntax|javascript|3223658|这应该会生成一条警告消息，提醒我在最终发布之前禁用NSLog。|offset|length|style|CODE|3223659|entityMap^0|0|0|P|5|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@$I|R|J|S|K|L]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I would do this 

<pre><code>#define EnableNSLog 1

#if EnableNSLog == 0
#define NSLog //
#elif EnableNSLog == 1
#warning Disable NSLog
#endif
</code></pre>

This should generate a warning message to remind me to disable <code>NSLog</code> before final release.

blocks|key|3507766|text|在菜单栏中:编辑>查找>在工作区中查找和替换，然后显示使用正则表达式的选项。搜索/替换"%5E/NSLog“|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3507767|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

in the Menu bar : Edit > Find > Find and Replace in Workspace
then, display options to use regular expressions.
search/replace for "[^/]NSLog"

blocks|key|1608143|text|右键单击xcode中的NSLog语句并选择"find+in+project“，因为text.you将被提示到一个新窗口，您可以在其中遵循Mihai+Fratu给出的指导。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1608144|TNQ|1608145|entityMap^0|M|F|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|M|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|N|8|@]|D|@]|E|$]]]|I|$]]

right click on NSLog statement in xcode and select "find in project" as text.you would be prompted to a new window where you can follow the guidance given by Mihai Fratu.

TNQ

blocks|key|3223587|text|如何在生产阶段的Xcode中禁用NSLog|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3223588|在项目的Supporting+Files文件夹中的appName-Prefix.pch文件中添加#define+NSLog，结果文件代码如下所示...|CODE|3223589|//+Prefix+header+for+all+source+files+of+the+'NSLog'+target+in+the+'NSLog'+project
//

#import+<Availability.h>

#ifndef+__IPHONE_4_0
#warning+"This+project+uses+features+only+available+in+iOS+SDK+4.0+and+later."
#endif

#ifdef+__OBJC__
++++#import+<UIKit/UIKit.h>
++++#import+<Foundation/Foundation.h>
#endif

//Add+this+to+disable+NSLog
#define+NSLog+//|code-block|syntax|javascript|3223590|entityMap^0|0|7|0|P|I|1C|D|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|H]|$9|V|A|W|B|H]]|D|@]|E|$]]|$1|I|3|J|5|K|7|X|8|@]|D|@]|E|$L|M]]|$1|N|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|O|$]]

How to disable NSLog in Xcode for Production stage

Add <code>#define NSLog</code> in <code>appName-Prefix.pch</code> file in Supporting Files Folder of your project
and result file code look like...

<pre><code>// Prefix header for all source files of the 'NSLog' target in the 'NSLog' project
//

#import &lt;Availability.h&gt;

#ifndef __IPHONE_4_0
#warning "This project uses features only available in iOS SDK 4.0 and later."
#endif

#ifdef __OBJC__
 #import &lt;UIKit/UIKit.h&gt;
 #import &lt;Foundation/Foundation.h&gt;
#endif

//Add this to disable NSLog
#define NSLog //
</code></pre>

blocks|key|3508020|text|您可以使用以下预处理器指令，它将不适用于发布模式。因此，您不必注释NSLog()。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3508021|#ifdef+DEBUG
++++NSLog(@"YOUR+MESSAGE+HERE!");
#endif|code-block|syntax|javascript|3508022|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use following Preprocessor Directives, it will not go with release mode.
So you don't have to commenting NSLog().

<pre><code>#ifdef DEBUG
 NSLog(@"YOUR MESSAGE HERE!");
#endif
</code></pre>

blocks|key|3223661|text|也可以试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3223662|++++#define+NSLog(@"YOUR+MESSAGE+HERE!")+do+{+}+while+(0)|code-block|syntax|javascript|3223663|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

try this also:

<pre><code> #define NSLog(@"YOUR MESSAGE HERE!") do { } while (0)
</code></pre>

blocks|key|3508155|text|将以下行添加到.pch文件中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3508156|#define+NSLog|code-block|syntax|javascript|3508157|对于启用注释它|3508158|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|$]]

Add the following line to your .pch file

<pre><code>#define NSLog
</code></pre>

for enable comment it

I'd like to do the following in Xcode:

Find all NSLog commands without comments, and replace it with //NSLog...

In other words, I want to comment all NSLog calls. Is this possible? Is there an easy way to do this?

How do I disable NSLog?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我想在Xcode中做以下事情：查找所有不带注释的NSLog命令，并将其替换为//NSLog...换句话说，我想注释所有的NSLog调用。这个是可能的吗？有什么简单的方法可以做到这一点吗？

问如何禁用NSLog？
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回答 15

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问如何禁用NSLog？EN

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问如何禁用NSLog？
EN