以下是ios Unicode编码转成中文的方法，无gbk和utf-8区别，代码如下，方法复制过去即可用。

//输入unicode字符自动转中文
- (NSString*) replaceUnicode:(NSString*)TransformUnicodeString{
    NSString *tepStr1 = [TransformUnicodeString stringByReplacingOccurrencesOfString:@"\\u"withString:@"\\U"];
    NSString *tepStr2 = [tepStr1 stringByReplacingOccurrencesOfString:@"\""withString:@"\\\""];
    NSString *tepStr3 = [[@"\"" stringByAppendingString:tepStr2]stringByAppendingString:@"\""];
    NSData *tepData = [tepStr3 dataUsingEncoding:NSUTF8StringEncoding];
    NSString *wordStr = [NSPropertyListSerialization propertyListWithData:tepData
                                                                   options:NSPropertyListMutableContainers
                                                                   format:nil error:nil];
    return  [wordStr stringByReplacingOccurrencesOfString:@"\\r\\n"withString:@"\n"];
}