自定义NSLog的输出: ZYDebug

#define ZYDEBUG (0 == 0)

#if ZYDEBUG
#define ZYLOG(format,...) NSLog(@"[%s][%s][%d]" format, __FILE__, __func__, __LINE__, ##__VA_ARGS__)
#else
#define ZYLOG(format,...) do{}while(0)
#endif

更新如下:

/* 0 is NSLog(); <0 no output; >0 verbose output */
#define ZYDEBUGLEVEL 0

#if (ZYDEBUGLEVEL > 1)
    #define ZYLog(formatString,...) NSLog(@"\n\tFile:%@, \n\tFunction:%s, \n\tLine:%d>>" formatString, [[NSString stringWithUTF8String:__FILE__] lastPathComponent] , __func__, __LINE__, ##__VA_ARGS__)
#elif (ZYDEBUGLEVEL == 0)
    #define ZYLog(formatString, ...) NSLog(formatString, ##__VA_ARGS__)
#else
    #define ZYLog(formatString,...) do{}while(0)
#endif