摘要： //只需如下设置imageView　[picImg setContentScaleFactor:[[UIScreenmainScreen] scale]]; picImg.contentMode = UIViewContentModeScaleAspectFill; picImg.autoresizingMask = UIViewAutoresizingFlexibleWidth;//根据你的需求 picImg.clipsToBounds = YES;//切掉多余部分 阅读全文