iOS-NSString值为Unicode格式（字符串编码转换成中文编码）

• + (NSString *)replaceUnicode:(NSString *)unicodeStr 
  {  
        
     NSString *tempStr1 = [unicodeStrstringByReplacingOccurrencesOfString:@"\u"withString:@"\U"];  
     NSString *tempStr2 = [tempStr1stringByReplacingOccurrencesOfString:@"""withString:@"\""];  
     NSString *tempStr3 = [[@"""stringByAppendingString:tempStr2] stringByAppendingString:@"""];  
     NSData *tempData = [tempStr3dataUsingEncoding:NSUTF8StringEncoding];  
     NSString* returnStr = [NSPropertyListSerializationpropertyListFromData:tempData  
                                                            mutabilityOption:NSPropertyListImmutable   
                                                                      format:NULL  
                                                            errorDescription:NULL];  
      NSLog(@"%@",returnStr);
     return [returnStrstringByReplacingOccurrencesOfString:@"\r\n"withString:@" "];  
  }