UIImageView *imageviewpic;
imageviewpic.frame=CGRectMake(0, 0, lable.frame.size.width, lable.frame.size.height);
imageviewpic=[[UIImageView alloc]initWithImage:[UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:picstring]]]];
[lable addSubview:imageviewpic];//添加图片教练图片;
图片加在lable怎么不能自动缩放