Xshell终端输入mysql -u root -p
出现错误：-bash: mysql: command not found
输入：
alias mysql=/usr/local/mysql/bin/mysql
再重复mysql -u root -p，输入mysql口令即可
Xshell终端输入mysql -u root -p
出现错误：-bash: mysql: command not found
输入：
alias mysql=/usr/local/mysql/bin/mysql
再重复mysql -u root -p，输入mysql口令即可
