mangci

1.@ echo off
  set num=%random%
  echo,%num%
2.@ echo off
  set /p str=请输入字符串:
  echo,%str%
3.@ echo off
  if %random% gtr 10000 (echo,随机数大于10000) else（echo,随机数小于10000)
4.@ echo off
  set /p var=请输入变量:
  if "%var%" == "A" (echo,你输入的变量为A) else (你输入的变量不为A)
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