iOS 使用base64字符串生成图片

字符串

po str
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+ (UIImage *)stringToImage:(NSString *)str {
    NSURL *baseImageUrl = [NSURL URLWithString:str];
    NSData *imageData = [NSData dataWithContentsOfURL:baseImageUrl];
    UIImage *photo = [UIImage imageWithData:imageData ];
    return photo;
}