protected void btnCommit_Click(object sender, EventArgs e)
{
DalOperationAboutCourses DalOperationAboutCourses = new DalOperationAboutCourses();
DalOperationAboutCourses.UpdateCourseIntroduction(Request["courseNo"].Trim(), Server.UrlDecode(Request["classID"].Trim()), Request["termtag"].Trim(), Textarea1.Value);
Javascript.AlertAndRedirect("修改成功！", "CInfoCourseIntro.aspx?courseNo=" + Request["courseNo"].Trim(), Page);
}