ios 移除子视图方法

移除子视图两种方法

方法1：

for (int loop = 0; loop < [subViews count]; loop++)
{
        UIView *subView = [subViews objectAtIndex:loop];
        [subView removeFromSuperview];
}

方法2：

NSArray *subViews = [subView subviews];
if([subViews count] != 0)
{
    [subViews makeObjectsPerformSelector:@selector(removeFromSuperview)];
}