Re: [I] when i use [rocketmq-client-cpp-2.2.0] api in my app, it's often Crashed with Error: pure virtual method called [rocketmq-client-cpp]

[via GitHub]

ifplusor commented on issue #465:
URL: 
https://github.com/apache/rocketmq-client-cpp/issues/465#issuecomment-2019877069

   > @ifplusor 请问，我怎么样调整vector的大小，我测试发现默认size都是1，要通过那个设置函数设置这个的大小。 
![image](https://private-user-images.githubusercontent.com/9984283/316784882-487732d5-07be-487b-8deb-2bf9f2aa932c.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.bwR3mFSs2Dz4Neak6DKlAgb_z6S-XyP9_61sL_68ucc)
   
   目前不支持，硬编码了1
   
![image](https://github.com/apache/rocketmq-client-cpp/assets/9999114/597b0652-ce2b-4ece-bd6f-ab87557e1b0d)
   


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