//新增课程
private void button14_Click(object sender, EventArgs e)
{
FmAddCourse fmAddCourse = new FmAddCourse();
fmAddCourse.ShowDialog();
}
//新增课程
private void button2_Click(object sender, EventArgs e)
{
int tid = new TeacherBusiness().getTidByUid(this.userModel.Uid);
FmAddCourse fmAddCourse = new FmAddCourse(tid);
fmAddCourse.ShowDialog();
}