1.在非调试状态下NSLog不工作

#ifdef DEBUG#define NSLog(...) NSLog(__VA_ARGS__)#else#define NSLog(...)#endif

2.去掉打印的时间戳

#ifdef DEBUG#define NSLog(FORMAT, ...) fprintf(stderr,"%s\n",[[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);#else#define NSLog(...)#endif

3.不同颜色的打印

#ifdef DEBUG#define NSLog(FORMAT, ...) fprintf(stderr,"%s:%d\t%s\n",[[[NSString stringWithUTF8String:__FILE__] lastPathComponent] UTF8String], __LINE__, [[NSString stringWithFormat:FORMAT, ##__VA_ARGS__] UTF8String]);#else#define NSLog(...)#endif

4.unicode转换成中文

#define NSLog(format, ...) NSLog(format, ## __VA_ARGS__)

5.结构体转化为字符串打印

CGRect rect = CGRectMake(0.0, 0.0, 320.0, 460.0);    NSString *str = NSStringFromCGRect(rect); //结构体转化为字符串    NSLog(@"%@",str);    //CGRectFromString(str); //字符串转化为结构体