报错如下
在国外的论坛上看到一句话
mysqlclient requires that you have the development package for MySql installed. This is usually something like apt install libmysqlclient-dev
我一想，自己安装了mysql了呀，
于是尝试着试一试的心态安装一下这个库
apt-get install libmysqlclient-dev
再次安装成功，这个库是mysql的C/C++接口好像
