private void Informa_Click(object sender, RoutedEventArgs e)
        {

            Window_Project22 window_Project22 = new Window_Project22();
            window_Project22.Show();
            this.Close();//关闭当前窗口
        }
 private void About_Click(object sender, RoutedEventArgs e)
 {
     Window_Project22 Window_Start1 = new Window_Project22();
     Window_Start1.Show();
     this.Close();//关闭当前窗口
 }