<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[b42259626的专栏]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/b42259626</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; b42259626]]></copyright><item><title><![CDATA[Asp.net判断文件夹是否存在]]></title><link>https://blog.youkuaiyun.com/b42259626/article/details/1855994</link><guid>https://blog.youkuaiyun.com/b42259626/article/details/1855994</guid><author>b42259626</author><pubDate>Tue, 30 Oct 2007 10:03:00 +0800</pubDate><description><![CDATA[ 在上传文件时经常要判断文件夹是否存在，如果存在就上传文件，否则新建文件夹再上传文件 判断语句为if (System.IO.Directory.Exists(Server.MapPath("file")) == false)//如果不存在就创建file文件夹{System.IO.Directory.CreateDirectory(Server.MapPath("file"));]]></description><category></category></item></channel></rss>