target action

//自定义target:
action:方法

#warning第一步声明target和action属性@property(nonatomic,assign)idmyTarget;
@property(nonatomic,assign)SELmyAction;

#warning第二部声明方法-(void)addmyTarget:(id)target
Ation:(SEL)action;

#warning第三步实现方法
-(void)addmyTarget:(id)target
Ation:(SEL)action{

#warning第四步接收传进来的目标对象和行为方法
self.myTarget= target;
self.myAction= action;

}

#warning第五步使用目标对象去执行行为方法
-(void)touchesBegan:(NSSet)touches withEvent:(UIEvent)event
{

[self.myTargetperformSelector:self.myActionwithObject:nil];}