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/// 遍历子视图
- (void)subviewWithBlock:(void(^)(UIView *view))aBlock
{
????// 如果有子视图则进入循环
????for (UIView *view in self.subviews) {
????????// 如果子视图不属于UIView则退出本次循环
????????if(![view isKindOfClass:[UIView class]]) continue;
????????// Block不为空则执行Block
????????if(aBlock) aBlock(view);
????????// 通过递归遍历子视图的子视图
????????[view subviewWithBlock:aBlock];
????}
}

/// 遍历子视图 - (void)subviewWithBlock:(void(^)(UIView *view))aBlock { ????// 如果有子视图则进入循环 ????for (UIView *view in self.subviews) { ????????// 如果子视图不属于UIView则退出本次循环 ????????if(![view isKindOfClass:[UIView class]]) continue; ????????// Block不为空则执行Block ????????if(aBlock) aBlock(view); ????????// 通过递归遍历子视图的子视图 ????????[view subviewWithBlock:aBlock]; ????} }

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[self subviewWithBlock:^(UIView *view) {
????// Code...
}];

[self subviewWithBlock:^(UIView *view) { ????// Code... }];