//UIView设置阴影    [[viewTest layer] setShadowOffset:CGSizeMake(1, 1)];    [[viewTest layer] setShadowRadius:5];    [[viewTest layer] setShadowOpacity:1];    [[viewTest layer] setShadowColor:[UIColor blackColor].CGColor];    //UIView设置边框    [[viewTest layer] setCornerRadius:5];    [[viewTest layer] setBorderWidth:2];    [[viewTest layer] setBorderColor:[UIColor whiteColor].CGColor];    [self.view addSubview:viewTest];