星空&逆行者: [code=plain] string strCachePath = strStartupPath + @"\Cache"; bool bFirstrun = !System.IO.Directory.Exists(strCachePath); if (bFirstrun) { System.IO.Directory.CreateDirectory(strCachePath); } //该段代码bool判断错误，会导致每次启动，永远自增一个Cache文件夹，正确的应该是这样 string strCachePath = strStartupPath + @"\Cache"; bool bFirstrun = !System.IO.Directory.Exists(strCachePath); if (!bFirstrun) { System.IO.Directory.CreateDirectory(strCachePath); } [/code]