private ScoreMsg GetScore()
        {
            ScoreMsg score = new ScoreMsg();

            Debug.WriteLine(RegularExpressions.IsNumeric(tbScore.Text));
            if (tbStuName.Text.Equals("") || tbCourseName.Text.Equals("") || tbScore.Text.Equals(""))
            {
                MessageBox.Show("请确保输入数据正确", "错误", MessageBoxButtons.OK);
                return(null);
            }
            else
            {
                score.CourseId  = Convert.ToInt32(tbCourseNo.Text);
                score.StudentNo = Convert.ToInt32(tbStuNo.Text);
                score.Score     = Convert.ToInt32(tbScore.Text);
            }
            return(score);
        }