unicode 转换成中文

+ (NSString *)replaceUnicode:(NSString *)unicodeStr {    

    NSString *tempStr1 = [unicodeStr stringByReplacingOccurrencesOfString:@"\\u" withString:@"\\U"];    

    NSString *tempStr2 = [tempStr1 stringByReplacingOccurrencesOfString:@"\"" withString:@"\\\""];    

    NSString *tempStr3 = [[@"\"" stringByAppendingString:tempStr2] stringByAppendingString:@"\""];    

    NSData *tempData = [tempStr3 dataUsingEncoding:NSUTF8StringEncoding];    

    NSString* returnStr = [NSPropertyListSerialization propertyListFromData:tempData    

                                                                                             mutabilityOption:NSPropertyListImmutable     

                                                                                                            format:NULL    

                                                                                              errorDescription:NULL];       

    return [returnStr stringByReplacingOccurrencesOfString:@"\\r\\n" withString:@"\n"];    

}    

unicode 转换成中文