放上一段批处理,想知道这些是用用什么语言写的echo.set /p inf= ◇请根据需要输入序号,并按回车:if "%inf%" == "1" goto killif "%inf%" == "2" goto autoif "%inf%" == "3" goto cleanif "%inf%" == "4" goto exit:killclsecho.我想学用这种语言,有哪些专门的书籍?