如图所示。。。。 void CChengjiDlg::OnButton1() //按钮里的{ // TODO: Add your control notification handler code here UpdateData(TRUE); m_s=m_score;//控件变量 int c=m_s/10; if(m_s>100 || m_s <0)MessageBox("分数录入错误"); switch(c) { case 10: case 9:m_string = "A";break; case 8:m_string = "B";break; case