打开文件openFileDialog的使用

  private   void  文件ToolStripMenuItem_Click( object  sender, EventArgs e)
        {
            OpenFileDialog openFileDialog1  =   new  OpenFileDialog();
            openFileDialog1.Filter  =   " 所有文件|*.mp3|*.wma|*.wma " ;
            openFileDialog1.Title  =   " 选择音乐 " ;
             if  (openFileDialog1.ShowDialog()  ==  DialogResult.OK)
            {
                 string  fullname  =  openFileDialog1.FileName;
                listBox2.Items.Add(fullname.Substring(fullname.LastIndexOf( " \\ " ) + 1 ));
            }
        

        }