将UILabel添加到缩放的UIScrollview问题时，我遇到了一个奇怪的问题。我正在向缩放的UIScrollview添加两个View1.UIImageView2.UILabelView这里的代码用于在UIScrollview上添加UIImageViewfloatrecentZoomScaleValue=4.5;CGRectrect=CGRectMake(x,y,150,150);UIImageView*signatureImage=[[UIImageViewalloc]initWithFrame:rect];[signatureImagesetImage:image];[sign