#import <QuartzCore/QuartzCore.h>
CALayer *lay = faceImg.layer;//获取ImageView的层[lay setMasksToBounds:YES];[lay setCornerRadius:3.0];//值越大,角度越圆
#import <QuartzCore/QuartzCore.h>
CALayer *lay = faceImg.layer;//获取ImageView的层[lay setMasksToBounds:YES];[lay setCornerRadius:3.0];//值越大,角度越圆