平时做技术实践时，很多问题不是概念不会，而是细节没串起来。拿“asp获取虚拟目录根路径的代码”来说，它看着像小点，放到项目里常会牵出环境、配置、兼容性和维护成本。下面按实际采用顺序，把思路、关键写法和容易踩坑的地方讲清楚，便于大家直接对照操作。
核心代码：
<%
TempArray = Array("account_book","admin","ajaxFile","catalog","excel","excel_stu","frame","inc","lib","pub", "stock","student","sygl","temp","windows")
url= LCase(Server.MapPath("./"))
for i=0 to UBound(TempArray)
url=Replace(url,"\"&TempArray(i),"")
Next
response.write url
%>
