Kenmick

@echo off
set /p a=请输入
echo %a%|find "s" >nul
if "%errorlevel%"=="0" (echo 含有s) else echo 不含s
pause >nul
复制代码

没有各位大虾的简洁额   - -b

Kenmick

@echo off
set /p a=请输入a的值
set /p b=请输入b的值
if "%a%"=="1" (if "%b%"=="2" (echo right) else echo wrong) else echo wrong   
pause >nul
复制代码