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我试过这样
+ (NSString *)base64StringFromImage:(UIImage *)image {
NSData *data = UIImagePNGRepresentation(image);
NSString *base64Str = [data base64EncodedStringWithOptions:NSDataBase64Encoding64CharacterLineLength];
// base64Str = (__bridge NSString *) CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, (CFStringRef)base64Str, NULL, CFSTR(":/?#[]@!$&’()*+,;="), kCFStringEncodingUTF8);
return base64Str;
}
但是这个返回值base64Str在网上的base642image工具网站上无法转换回图片