private void buttonSave_Click(object sender, System.EventArgs e)
		{
			//
			string orig=tbConn.Text.Trim();//orig,原字符串			
			string coding="";//coding,編碼
			for(int i=0;i<orig.Length;i++)                     
				coding+=((short)orig[i]).ToString()+"|";
			FileStream aFile=new FileStream(Application.StartupPath+"\\sqlconn.dat",FileMode.OpenOrCreate);
			StreamWriter sw=new StreamWriter(aFile);
			sw.WriteLine(coding);
			sw.Close();
			aFile.Close();

		}
		private void LoadConn()
		{
			try{
				string deco="";//解碼后
				string coding="";//加密串
				string[]strArray;
				char[]charArray=new char[]{'|'};
				//
				FileStream aFile=new FileStream(Application.StartupPath+"\\sqlconn.dat",FileMode.Open);
				StreamReader sr=new StreamReader(aFile);
				coding=sr.ReadLine();
				if(coding!=null)
				{
					//
					strArray=coding.Split(charArray);
					for(int i=0;i<strArray.Length-1;i++)
					{
						short temp =short.Parse(strArray[i]);
						deco+=((char)temp).ToString();
					}
					tbConn.Text=deco;
				}
				sr.Close();
				aFile.Close();
			}
			catch
			{
				//沒有文件
				;
			}			
		}