批量不能很好地工作.如果存在

Question

试着玩一些批处理.

@ echo off
IF EXIST %CD%\Minecraft.exe
Minecraft.exe
IF NOT exist %CD%\Minecraft.exe
wget.exe https://s3.amazonaws.com/MinecraftDownload/launcher/Minecraft.exe
Minecraft.exe
pause

我做错了什么？当我运行它时,CMD就会关闭.

Answer 1

我做错了什么？

您可以阅读IF命令的帮助if /?.

它解释了if期望所有在一条线上

@echo off
IF EXIST %CD%\Minecraft.exe Minecraft.exe
IF NOT exist %CD%\Minecraft.exe wget.exe https://s3.amazonaws.com/MinecraftDownload/launcher/Minecraft.exe Minecraft.exe
pause

或者使用 ELSE

@echo off
IF EXIST %CD%\Minecraft.exe (
  Minecraft.exe
) ELSE (
  wget.exe https://s3.amazonaws.com/MinecraftDownload/launcher/Minecraft.exe Minecraft.exe
)
pause