void CtestDlg::OnBnClickedButton1()
{
    CString str;
    int count = 0;
    int length = 0;
    GetDlgItemText(IDC_EDIT_1, str);
    length = str.GetLength();  //得到了字符的长度

    for (int i = 0; i < length; i++) {
        if ((byte)str[i] > 0x7F) { //判断单字符是否大于十进制127 是的话那么为中文字符
            i++;
        }
        count++;
    }
    CString strOut;
    strOut.Format(_T("字符长度为 %d  字符个数为%d"), length, count);
    SetDlgItemText(IDC_STATIC_2, strOut);
}