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| 预处理器在C/C++/Objective-C语言中提供的宏 | |
| * __func__%s 当前函数签名 | |
| * __LINE__ %d 在源代码文件中当前所在行数 | |
| * __FILE__ %s 当前源代码文件全路径 | |
| * __PRETTY_FUNCTION__ %s 像 __func__，但是包含了C++代码中的隐形类型信息。 | |
| 在Objective-C使用的一些日志信息 | |
| * NSStringFromSelector(_cmd) %@ 当前selector名称 |
i5ting
/ -(NSString *)getDirectory:(NSString *)current_dir withBeforeLevel:(int)blevel
Created
March 14, 2013 10:34
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| /** | |
| * NSString *current_dir = [NSString stringWithFormat:@"%s",__FILE__]; | |
| * NSString *result_dif = [self getDirectory:current_dir withBeforeLevel:2]; | |
| * | |
| * result: | |
| * current_dir = /Users/myname/work/git/rails-like-dir-example/rails-like-dir-example/AppDelegate.m | |
| * result dir = /Users/myname/work/git/rails-like-dir-example/ | |
| */ | |
| -(NSString *)getDirectory:(NSString *)current_dir withBeforeLevel:(int)blevel |
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