【iOS入门】数组遍历

时间:2021-08-18 17:58:28

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 aMethod 2. 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*/