ios gb2312轉utf-8

+(NSString *) gb2312toutf8:(NSData *) data{

 

    NSStringEncoding enc = CFStringConvertEncodingToNSStringEncoding(kCFStringEncodingGB_18030_2000); 

    NSString *retStr = [[NSString alloc] initWithData:data encoding:enc];

    

    return retStr;

}