UIImage* img=[UIImage imageNamed:
@"name.png"];
//原图
UIEdgeInsets edge=UIEdgeInsetsMake(
0,
10,
0,
10);
//UIImageResizingModeStretch：拉伸模式，通过拉伸UIEdgeInsets指定的矩形区域来填充图片
//UIImageResizingModeTile：平铺模式，通过重复显示UIEdgeInsets指定的矩形区域来填充图
img=
[img resizableImageWithCapInsets:edge resizingMode:UIImageResizingModeStretch];
imageView.image=img;
