//UIImageView
//初始化
UIImageView * BGimageView = [[UIImageView alloc]initWithFrame:self.view.bounds];//布滿(mǎn)全屏
具體位置
//CGRectMake(SCREEN_WIDTH * 0.3, SCREEN_HEIGHT * 0.4, 200, 50);
//自定義圖片
[BGimageView setImage:[UIImage imageNamed:@"IU2"]];
[self.view addSubview:BGimageView];
