Javascript 是否有一种方法可以使用<；td>；标签

我制作了一个数独表，其中包含从XML文件预加载的一些数字。我有另一个包含完整拼图数字的XML文件，我想检查输入的数字与XML文件中的数字的顺序是否相同

我曾尝试使用document.getElementsByTagName（“td”）.value来获取输入值，但这种方法毫无用处

这是我的桌子

<table id="grid">
 <tr id="one">
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
 </tr>
 <tr id="two">
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
 </tr>
 <tr id="three">
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
 </tr>  
 <tr id="four">
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
 </tr>
 <tr id="five">
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
 </tr>
 <tr id="six">
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="number"></td>
 </tr>
 <tr id="seven">
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
 </tr>
 <tr id="eight">
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="number"></td>
    <td class="numer1"></td>
    <td class="number"></td>
 </tr>
 <tr id="nine">
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="number"></td>
    <td class="numer2"></td>
    <td class="numer1"></td>
    <td class="numer2"></td>
    <td class="number"></td>
 </tr>

这就是我用JS尝试过的

function hint(){
if (document.getElementById("easyS").value == "easy1" || 
document.getElementById("hardS").value == "hard1"){
    var request1 = new XMLHttpRequest();
request1.open("GET", "puzzle1.xml", false);
request1.send(null);
var xmldoc = request1.responseXML;

var numbers1 = xmldoc.getElementsByTagName("number");
var numArray1 = [];
for(var i = 0; i < numbers1.length; i++){
    numArray1.push(numbers1[i].firstChild.data)
}
var printNum1 = document.getElementsByTagName("td")[0].value;
x = printNum1.length;
console.log(printNum1);
if (printNum[x] !== numArray1[x]){
    alert("wrong number");
}
}
console.log(hint());

函数提示（）{
if（document.getElementById（“easyS”）.value==“easy1”||
document.getElementById（“hardS”）.value==“hard1”）{
var request1=新的XMLHttpRequest（）；
request1.open（“GET”，“puzzle1.xml”，false）；
请求1.发送（空）；
var xmldoc=request1.responseXML；
var numbers1=xmldoc.getElementsByTagName（“编号”）；
var numArray1=[]；
对于（变量i=0；i

}

下一段代码确实有效，并尝试执行类似的操作，但无法执行：

 function solvePuzzle(){
  var request1 = new XMLHttpRequest();
 request1.open("GET", "puzzle1.xml", false);
   request1.send(null);
var xmldoc = request1.responseXML;

var numbers1 = xmldoc.getElementsByTagName("number");
var numArray1 = [];
for(var i = 0; i < numbers1.length; i++){
    numArray1.push(numbers1[i].firstChild.data)
}
var printNum1 = document.getElementsByTagName("td");
x = printNum1.length;
while(x--){
    printNum1[x].innerHTML = numArray1[x];
}

函数solvePuzzle（）{
var request1=新的XMLHttpRequest（）；
request1.open（“GET”，“puzzle1.xml”，false）；
请求1.发送（空）；
var xmldoc=request1.responseXML；
var numbers1=xmldoc.getElementsByTagName（“编号”）；
var numArray1=[]；
对于（变量i=0；i