输出的时候把\r和\n都输出来了，使用的是rapidjson来生成的JSON

    StringBuffer buffer;
    Writer<StringBuffer> log(buffer);
    log.StartObject();
    log.Key("msg");
    log.String(Msg.c_str());
    log.EndObject();
    string Log = buffer.GetString();
    cout << Log << endl;
    system("pause");