Question

我的代码有问题，我编写的东西会安装所有.net框架的directx 9.0c补丁，如果nessessery和其他一些东西

代码回声

echo \====================================/
echo / A repackage of all essential files \
echo \ that are required to be installed  /
echo / so installing them manually isn't  \
echo \ a big problem.                     /
echo /====================================\
echo \    Continue at your own risk!!!    /
echo /====================================\
echo.
echo Type yes to continue or no to cancel:
set /p Reponse=""
cls
if %Reponse% == yes (
echo what's is your CPU architecture? 32-Bit or 64-Bit?
echo to help, look at your ram, if it's below the 4GB Then its 32-bit
set /p arch=""
if %arch% == 32-bit (
cls
echo starting Installation
)
echo starting installation process
)
if %Reponse% == no (
echo Shutting Down
echo Thank you for your participation
)
pause

破碎的部分：

if %Reponse% == yes (
echo what's is your CPU architecture? 32-Bit or 64-Bit?
echo to help, look at your ram, if it's below the 4GB Then its 32-bit
set /p arch=""
if %arch% == 32-bit (
cls
echo starting Installation
)
echo starting installation process
)

当代码的这部分不存在时，它正在工作：

echo what's is your CPU architecture? 32-Bit or 64-Bit?
echo to help, look at your ram, if it's below the 4GB Then its 32-bit
set /p arch=""
if %arch% == 32-bit (
cls
echo starting Installation
)

任何改进都将受到赞赏

感谢您阅读

抱歉我的英语不好

Answer 1

这与如何在批处理文件中的块内扩展环境变量有关。要覆盖此行为，请使用setlocal enabledelayedexpansion并使用!代替%来引用环境变量。

@echo off
setlocal enabledelayedexpansion

  ... existing code here ...

if %Reponse% == yes (
echo what's is your CPU architecture? 32-Bit or 64-Bit?
echo to help, look at your ram, if it's below the 4GB Then its 32-bit
set /p arch=""
if !arch! == 32-bit (
cls
echo starting Installation
)
echo starting installation process
)

批处理文件编程|如果声明不起作用

1 个答案: