UIImageView* iamgeView = [[UIImageView alloc]init];
[self.view addSubview:iamgeView];
UIImage* image = [UIImage imageNamed:@"icon_saoyisao@3x.png"];
iamgeView.image =image;
iamgeView.frame =CGRectMake(100, 100, image.size.width, image.size.height);
NSLog(@"%f--%f",image.size.width,image.size.height);
