Questions about MySQL continuous restart

A few days ago, the company came to a new person and accidentally kicked off the power supply. At that time, my machine was still running the server program.

The above is the background. When I restart the service, I find that connection to the database always fails. The most common is: cannot connect to MySQL by '/var/lib/MySQL. Sock '. The prompt is probably like this. I cannot remember it. At that time, you can log on using the MySQL command line, or use MySQL work sequence, but the service is always unavailable. Google has changed many files. Finally, I guess it is caused by a database table error. Delete the database and reinstall MySQL!

The record for today is here to provide a reference for children's shoes that encounter the same problems as me.