ios---移除子视图

简单暴力版

移除所有子视图

[view.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];

粗中有细版

移除某个子视图

    NSEnumerator *subviewsEnum = [view.subviews reverseObjectEnumerator];
    for (UIView *subview in subviewsEnum) {
        if ([subview isKindOfClass:[TestClass class]]){
         [subview removeFromSuperview];
        }
    }