+ (NSString *)replaceUnicode:(NSString *)unicodeStr {        NSString *tempStr1 = [unicodeStr stringByReplacingOccurrencesOfString:@"\\u"withString:@"\\U"];    // 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"];    }