作者留言，需要在 GPT-3.5-turbo API 的 messages 参数里加上 system role 的指令才行，普通 ChatGPT 网页版是做不到的。
This is generated by a prompt involving the system role in the parameter messages to the GPT-3.5-turbo API, asking GPT to act a role rather than take itself as a language model. Note that it is not achievable on the regular ChatGPT website.
If you don't want to do coding, just use the MateAI of GPTron, which offer a UI to input system role prompt.
