makeObjectsPerformSelector:SEL

一.数组的makeObjectsPerformSelector:SEL方法来减少自己写循环代码.[self.answerView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];1.makeObjectsPerformSelector:@select（aMethod） 

 简介：让数组中的每个元素 都调用 aMethod2.makeObjectsPerformSelector:@select（aMethod） withObject:oneObject 

 简介：让数组中的每个元素 都调用 aMethod 并把 withObject 后边的 oneObject 对象做为参数传给方法aMethod[array makeObjectsPerformSelector:@selector(setRecurringDelegate:)withObject:self];/*将检测到的该自动插入的交易插入数据库*/[array makeObjectsPerformSelector:@selector(insertRecursion)];/*将检测到的该自动插入的交易插入数据库*/