// 刷新学期
protected void bindTerm()
{
// 获得未创建标准的专业
ddlTerm.Items.Clear();// 先清空已下拉菜单
ddlTerm.Items.Add(new ListItem("==请选择==", "null"));
ddlTerm.DataSource = finSrv.GetNoExistTerm(ddlSpeciality.SelectedValue);
ddlTerm.DataBind();
}