1 public TestOne()  2 {  3 InitializeComponent();  4 SaveFileDialog();//調用打開SaveFileDialog 保存對話框  5 }  6  7 #region 保存對話框  8 PRivate void SaveFileDialog()  9 { 10 //string localFilePath, fileNameExt, newFileName, FilePath; 11 SaveFileDialog saveFileDialog1 = new SaveFileDialog(); 12 13 //設置文件類型 14 saveFileDialog1.Filter = " txt files(*.txt)|*.txt|All files(*.*)|*.*"; 15 16 //設置默認文件類型顯示順序 17 saveFileDialog1.FilterIndex = 2; 18 19 //保存對話框是否記憶上次打開的目錄 20 saveFileDialog1.RestoreDirectory = true; 21 22 //點了保存按鈕進入 23 if (saveFileDialog1.ShowDialog() == DialogResult.OK) 24 { 25   //獲得文件路徑 26   //localFilePath = saveFileDialog1.FileName.ToString(); 27 28   //獲取文件名，不帶路徑 29   //fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("http://") + 1); 30 31   //獲取文件路徑，不帶文件名 32   //FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("http://")); 33 34   //給文件名前加上時間 35   //newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt; 36 37   //在文件名里加字符 38   //saveFileDialog1.FileName.Insert(1,"dameng"); 39     40   System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();//輸出文件 41 42                       //fs輸出帶文字或圖片的文件，就看需求了 43 } 44 }