标签： 密码由6-12位数字或字母组成，密

private void button1_Click(object sender, RoutedEventArgs e){string pwdregex = ^[a-zA-Z0-9]{6,12}$;System.Text.RegularExpressions.Regex regPwd = new System.Text.RegularExpressions.Regex(pwdregex);if (!regPwd.IsMatch(PasswordBox1.Password.Tr