MFC中设置注册界面，运行结果一直是注册成功，怎么回事？求大神指点

Question

void CREGISTERDlg::OnBnClickedButtonOk()
{
// TODO: 在此添加控件通知处理程序代码
UpdateData(true);
if (m_NAME == " " || m_PWD == " " || m_PWD1 == " ")
{
MessageBox(TEXT("用户名或密码不能为空"));
return;
}
if (m_PWD != m_PWD1)
{
MessageBox(TEXT("两次输入的密码不一样，请重新输入！"));
m_PWD = " ";
m_PWD1 = " ";
return;
}
if ((m_NAME != " ") && (m_PWD ==m_PWD1))
{
MessageBox(TEXT("注册成功"));
return;
}
}

void CREGISTERDlg::OnBnClickedButtonReset()
{
// TODO: 在此添加控件通知处理程序代码

m_NAME = "  ";
m_PWD = " ";
m_PWD1 = " ";
UpdateData(false);

}

Answer 1

字符串调用一下Trim()去除空格