1 public void WriteLog(string Action)
 2     {
 3         try
 4         {
 5             string strLogPath = System.Configuration.ConfigurationManager.AppSettings["LogPath"].ToString();
 6             string strLogName = System.DateTime.Now.ToString("yyyy/MM/dd").Replace("/", "-");
 7             string strIP = Request.UserHostAddress + ":" + Request.Url.Port;//訪問者的Ip和端口
 8             if (!strLogPath.EndsWith("\\"))
 9                 strLogPath += "\\";
10             strLogPath += "Log\\";
11             //判斷是否有這樣的路徑并創建
12             if (System.IO.Directory.Exists(strLogPath) == false)
13             {
14                 System.IO.Directory.CreateDirectory(strLogPath);
15             }
16             strLogName = strLogPath + strLogName + ".txt";
17             ////如果文件不存在，會自動創建
18             string strNote = System.DateTime.Now.ToString("yyyy/MM/dd HH:mm:ss");
19             strNote += ":" + strIP + ":\n" + Action + "\n\n";
20             System.IO.StreamWriter file = new System.IO.StreamWriter(strLogName, true);
21             file.WriteLine(strNote);
22             file.Close();
23             file.Dispose();
24         }
25         catch //(Exception ex)
26         {
27 
28         }
29     }

 1 protected void ibtnQuery_Click(object sender, EventArgs e)
 2     {
 3         try
 4         {           
 5             Query();
 6         }
 7         catch (Exception ex) 
 8         { 
 9             WriteLog(ex.Message); 
10         }
11     }