1 public TestOne()
 2 {
 3  InitializeComponent(); 
 4 SaveFileDialog();//调用打开SaveFileDialog 保存对话框
 5 }
 6 #region 保存对话框
 7 private void SaveFileDialog()
 8 { 
 9 //string localFilePath, fileNameExt, newFileName, FilePath; 
10 SaveFileDialog saveFileDialog1 = new SaveFileDialog(); //设置文件类型 
11 saveFileDialog1.Filter = " txt files(*.txt)|*.txt|All files(*.*)|*.*"; //设置默认文件类型显示顺序 
12 saveFileDialog1.FilterIndex = 2; //保存对话框是否记忆上次打开的目录
13  saveFileDialog1.RestoreDirectory = true; //点了保存按钮进入
14  if (saveFileDialog1.ShowDialog() == DialogResult.OK) 
15 {  
16 //获得文件路径  
17 //localFilePath = saveFileDialog1.FileName.ToString(); 
18  //获取文件名，不带路径  
19 //fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1); 
20  //获取文件路径，不带文件名 
21  //FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\\"));
22   //给文件名前加上时间 
23  //newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt;  
24 //在文件名里加字符  
25 //saveFileDialog1.FileName.Insert(1,"dameng");    
26   System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();
27 //输出文件                      
28 //fs输出带文字或图片的文件，就看需求了 
29     }
30 }
31 #endregion