set "Ymd=%date:~,4%%date:~5,2%%date:~8,2%"
md "E:\数据备份\%ymd%"
"C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqldump.exe" --opt -Q mysql -uroot -p123456 > E:\数据备份\%Ymd%\mysql.sql
"D:\softwareInstall\wrarProgram\WinRAR.exe" a -ep1 -r -o+ -m5 -df "E:\数据备份\%Ymd%.rar" "E:\数据备份\%Ymd%"