文件删除，移动，复制

1：删除

  
    

   
      
   
     try
   
     
 {
 
   
     //
   
     指定路径和文件名
   
     

   
      
   
     string
   
      filePath 
   
     =
   
      Path.Combine(System.Web.Hosting.HostingEnvironment.MapPath(
   
     "
   
     ~/upload
   
     "
   
     ), 
   
     "
   
     b.doc
   
     "
   
     );
 
   
     string
   
      query 
   
     =
   
      
   
     "
   
     确定要删除该文件\n
   
     "
   
      
   
     +
   
      filePath 
   
     +
   
      
   
     "
   
     ?
   
     "
   
     ;
 
   
     if
   
      (MessageBox.Show(query, 
   
     "
   
     删除文件?
   
     "
   
     , MessageBoxButtons.YesNo) 
   
     ==
   
      DialogResult.Yes)
 {
 File.Delete(filePath);
 }
 }
 
   
     catch
   
     (Exception ex)
 {
 MessageBox.Show(
   
     "
   
     无法删除该文件，以下异常！
   
     "
   
      
   
     +
   
      
   
     "
   
     发生:\n
   
     "
   
      
   
     +
   
      ex.Message, 
   
     "
   
     失败
   
     "
   
     ); 
 }
  
    

2：移动

  
    

   
      try
   
     
 {
 
   
     //
   
     指定路径和文件名
   
     

   
      
   
     string
   
      filePath 
   
     =
   
      Path.Combine(System.Web.Hosting.HostingEnvironment.MapPath(
   
     "
   
     ~/upload
   
     "
   
     ), 
   
     "
   
     b.doc
   
     "
   
     );
 
   
     string
   
      query 
   
     =
   
      
   
     "
   
     确定要移动该文件\n
   
     "
   
      
   
     +
   
      filePath 
   
     +
   
      
   
     "
   
     ?
   
     "
   
     ;
 
   
     if
   
      (MessageBox.Show(query, 
   
     "
   
     移动文件?
   
     "
   
     , MessageBoxButtons.YesNo) 
   
     ==
   
      DialogResult.Yes)
 {
 File.Move(filePath, System.Web.Hosting.HostingEnvironment.MapPath(
   
     "
   
     ~/Newupload/
   
     "
   
     ) 
   
     +
   
      
   
     "
   
     NewfileName.doc
   
     "
   
     );
 }
 }
 
   
     catch
   
      (Exception ex)
 {
 MessageBox.Show(
   
     "
   
     无法移动该文件，以下异常！
   
     "
   
      
   
     +
   
      
   
     "
   
     发生:\n
   
     "
   
      
   
     +
   
      ex.Message, 
   
     "
   
     失败
   
     "
   
     );
 }
  
    

3：复制

  
    

   
      try
   
     
 {
 
   
     //
   
     指定路径和文件名
   
     

   
      
   
     string
   
      filePath 
   
     =
   
      Path.Combine(System.Web.Hosting.HostingEnvironment.MapPath(
   
     "
   
     ~/upload
   
     "
   
     ), 
   
     "
   
     b.doc
   
     "
   
     );
 
   
     string
   
      query 
   
     =
   
      
   
     "
   
     确定要复制该文件\n
   
     "
   
      
   
     +
   
      filePath 
   
     +
   
      
   
     "
   
     ?
   
     "
   
     ;
 
   
     if
   
      (MessageBox.Show(query, 
   
     "
   
     复制文件?
   
     "
   
     , MessageBoxButtons.YesNo) 
   
     ==
   
      DialogResult.Yes)
 {
 File.Copy(filePath, System.Web.Hosting.HostingEnvironment.MapPath(
   
     "
   
     ~/Newupload/
   
     "
   
     ) 
   
     +
   
      
   
     "
   
     NewfileName.doc
   
     "
   
     );
 }
 }
 
   
     catch
   
      (Exception ex)
 {
 MessageBox.Show(
   
     "
   
     无法复制该文件，以下异常！
   
     "
   
      
   
     +
   
      
   
     "
   
     发生:\n
   
     "
   
      
   
     +
   
      ex.Message, 
   
     "
   
     失败
   
     "
   
     );
 }