源代码安装版本 
/usr/local/mysql/var

apt二进制发现版本
/usr/local/mysql/data

RPM安装版本
/var/lib/mysql![](https://cache.tdyun.com/upload/information/20200218/35/3078.jpg?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)