iOS 宏定义问题！求解决！！！

Question

// 打印的宏定义代码
#define Log NSLog(@"CLASS = %@, FUNC = %s, LINE = %d",[self class], __func__, __LINE__);
#define SGLog(...) Log NSLog(__VA_ARGS__)

// 打印结果
// 2016-06-12 06:08:05.638 nslog[37162:745841] CLASS = ViewController, FUNC = -[ViewController viewDidLoad], LINE = 22
// 2016-06-12 06:08:05.638 nslog[37162:745841] 我是打印

// 问题：如何修改宏定义，让两行的打印合并成一行呢？
// 例：2016-06-12 06:08:05.638 nslog[37162:745841] CLASS = ViewController, FUNC = -[ViewController viewDidLoad], LINE = 22 : 我是打印

Answer 1

#define SGLog(...) NSLog(@"CLASS = %@, FUNC = %s, LINE = %d:%@", [self class], __func__, __LINE__, [NSString stringWithFormat:__VA_ARGS__])