[iOS diary]关于重写setter覆盖property时，出现exc_bad_access

譬如：

@property BOOL isEditable;-(void) setIsEditable:(BOOL)isEditable;-(void) setIsEditable:(BOOL)tmpIsEditable{    self.isEditable = tmpIsEditable;    //something else   ...        }

这样写会出现

exc_bad_access

因为

-(void) setIsEditable:(BOOL)tmpIsEditable{            self.isEditable = tmpIsEditable;            //something else            ...        }

实际上是一个自递归，会造成无限递归

因为

        self.isEditable = tmpIsEditable;</strong>

中的self.isEditable = xxx;实际上就是调用

-(void) setIsEditable:(BOOL)isEditable;

来实现的。

正确应该改成

-(void) setIsEditable:(BOOL)tmpIsEditable{               _isEditable = tmpIsEditable;               //something else               ...        }