Objective-C:确定哪个文件执行了NSLog [duplicate]

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这个问题已经有了答案:

How to print out the method name and line number and conditionally disable NSLog? 13 answers
如何打印方法名和行号并有条件地禁用NSLog?13个答案

Say I have 10 different implementation files that are run in an chaotic order, and in each of them I have an NSLog(@"Log");, and when I run the program I will get 10 Log's to my console output, but how can I know which one was logged by which file? I'm searching for something like

假设我有10个不同的实现文件，它们以混乱的顺序运行，在每个文件中我都有一个NSLog(@"Log")，当我运行程序时，我的控制台输出将得到10个Log，但是我怎么知道哪个文件记录了哪个?我在找类似的东西

`In someFile1.m: Log`
`In someFile3.m: Log`
`In someFile2.m: Log`
`...`

And so on and so forth. Is that possible?

等等。这有可能吗?

2 个解决方案

#1

You can use preprocessor macros for that, take a look at this example:

你可以使用预处理器宏，看看这个例子:

NSLog(@"In %s - %s:%d someObject=%@", __FILE__, __func__, __LINE__, someObject);

Here's what's available: https://developer.apple.com/library/ios/qa/qa1669/_index.html

这是可用的:https://developer.apple.com/library/ios/qa/qa1669/_index.html

#2

You can use __FILE__ macro:

您可以使用__FILE__宏:

NSLog(@"%s",__FILE__ );

Which outputs filename:

输出文件名:

2013-10-16 20:49:17.536 ABC[3637:a0b] /Users/who/where//DeviceViewController.m

#1