UIImage将图片写入本地相册

 UIImageWriteToSavedPhotosAlbum(<#UIImage *image#>, <#id completionTarget#>, <#SEL completionSelector#>, <#void *contextInfo#>)

 

例子：

 UIImage *image = [UIImage imageNamed:@"yintingting"];

    UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);