mysql 备份数据库

@echooffifnotexistd:\DBBackupmdd:\DBBackupsetbak_db=zzssethost_db=192.168.58.133seth=%time:~0,2%seth=%h:=0%setbak_time=%date:~0,4%%date:~5,2%%date:~8,2%%h%%time:~3,2%%time:~6,2%mysqldump-h%host_db%-uroot-pp@ssw0rd%bak_db%>D:\DBBackup\%bak_db%_%bak_time%.sql