<tbody>
    <tr>
        <td style="width:25%">修改密碼:</td>
        <td><input type="password" class="input" name="password" value="" id="password"></td>
    </tr>
    <tr>
        <td style="width:25%">確認密碼:</td>
        <td><
 
input type="password" class="input" name="password1" value="" id="password1"></td>
    </tr>
</tbody>

<script>
    $(function(){
        $(‘#button‘).click(function(){
            var password=$(‘#password‘).val();
            var password1=$(‘#password1‘).val();
            
 
if(password ==‘‘){
                var flage=‘<font class="del" color="red">密碼不能為空</font>‘;
                $(‘.del‘).remove();
                $(‘#password‘).parent().append(flage);
            }else if(password.length<6){
                var flage=‘<font class="del" color="red">密碼長度不小於6位</font>‘;
                    $(
 
‘.del‘).remove();
                    $(‘#password‘).parent().append(flage);
            }else{
                if(password1==password){
                    $(‘form‘).submit();
                }else{
                    var flage=‘<font class="del" color="red">兩次密碼不一致</font>‘;
                    $(‘.del‘).remove();
                    $(‘#password1‘).parent().append(flage);
                }
            }
        });
    })
</script>

jquery簡單的表單驗證密碼