用批处理实现文件备份器V2.3

echo           │                                                        │
echo           │                   您的路径输入有错误                   │
echo           │                                                        │
echo           │              请在半角状态输入冒号和反斜杠              │
echo           │                                                        │
echo           │               按任意键返回上一步重新选择               │
echo           │                                                        │
echo           ╰────────────────────────────╯
echo.
pause>nul
goto input_destination

:date_error
cls
color 0c
title 文件备份器-日期输入错误
echo.
echo                               ╭────────╮