public void TextBlockChange(TextBlock t, LectureItem Lectureitem)
{
/*"date": "2013-11-07 18:04:28",
"place": "教学3号楼团委报告厅"
*/
t.Text += "时间: " + Lectureitem.date + "\n";
t.Text += "地点: " + Lectureitem.place + "\n";
}
public async void LecturePageChange()