1. Installation steps:
(1) to download the database, and then unzip
(2) the path assignment database is located, such as: C: \ apps \ mysql-5.6.40-winx64 \ bin
(3) press the home button, then cmd in the search box search
(4) Right-click cmd.exe, run as administrator
(5) Enter in cmd CD C: \ Apps \ MySQL-5.6.40-Winx64 \ bin , and then press ENTER
(6) installed database statements in cmd input: mysqld -intstall, press Enter
(7) to open the Task Manager, click the service 
, and then find mysql, and then start the program
2. Delete steps:
(1) First, press the home button, then cmd in the search box search
(2) Right-click cmd.exe, run as administrator
(3)), the path assignment database, such as: C: \ apps \ mysql-5.6.40-winx64 \ bin
(4) input in cmd CD C: \ Apps \ MySQL-5.6.40-Winx64 \ bin , and then press ENTER
(5) installed database statements in cmd input: mysqld -remove, press Enter
(6) open the Task Manager, click the service , and then find mysql, then stop this program
(7) delete the database installation directory