private void bt_down_Click(object sender, RoutedEventArgs e)
{
FTPFilesDownLoadController download = new FTPFilesDownLoadController(true);
//学生下载答卷，赋值false，批卷人查看试卷，则赋值true
stackpanel2.Children.Add(download);
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
this.ResizeMode = System.Windows.ResizeMode.NoResize;
FTPFilesDownLoadController download = new FTPFilesDownLoadController(false);
//学生下载答卷，赋值false，批卷人查看试卷，则赋值true
stackpanel2.Children.Add(download);
}
