标准的写法
简化后的宏
/**************************************************************/
// delegate 托付
/*
#define DelegateSelf( __fun ) \
if (_delegate && [_delegate respondsToSelector:@selector( __fun )]) { \
[_delegate __x self];}
*/
#define DelegateSelf( __fun ) Delegate( __fun, self)
/*
#define Delegate( __x ) \
if (_delegate && [_delegate respondsToSelector:@selector(__x)]) { \
[_delegate __x];}
*/
#pragma mark - to delegate被注冊KVO时,isa会变, 推断delegate被释放?
#define Delegate( __fun, ...) \
if (_delegate && [_delegate respondsToSelector:@selector( __fun )]) { \
objc_msgSend(_delegate, @selector( __fun ), ## __VA_ARGS__);}
简化后的写法
DelegateSelf(bankCellClickPlus:);
Delegate(clickMedal:index:, self, sender.tag);