https://blog.wongcw.com/2021/11/19/openai%e5%b0%87%e5%90%91%e6%9b%b4%e5%a4%9a%e9%96%8b%e7%99%bc%e8%80%85%e9%96%8b%e6%94%begpt-3%e8%87%aa%e7%84%b6%e8%aa%9e%e8%a8%80%e8%99%95%e7%90%86%e6%a8%a1%e5%9e%8b%e7%9a%84%e8%a8%aa%e5%95%8f/