我想划分几个复选框，这样它们就不会重叠和总和，如何让"q1"和"q2"分开操作

Question

我是一名学生，我要做一个关于考试的页面。

我想把几个复选框分开，这样它们就不会重叠和相加。

我怎么能拥有"q1"；以及"；q2"；单独操作？

每个问题只检查一个，以及两个是否相加。

<script type="text/javascript">
var sum=0;
function calc(cBox) {
var sumtext = document.getElementById("sumtext");
if(cBox.checked)
sum += parseInt(cBox.value);
else
sum -= parseInt(cBox.value);
sumtext.value = sum;
}

function checkOnly(chk){
var obj = document.getElementsByName("q1");
for(var i=0; i<obj.length; i++){
if(obj[i] != chk){
obj[i].checked = false;
}
}
}
</script>

No.1 Question<br>
<br>
<input type="checkbox" name="q1" value="1"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer1<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer4
</p>

No.2 Question<br>
<br>
<input type="checkbox" name="q2" value="1"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer1<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this);calc(this)"  class="sum" >Answer4
</p>
<input type="text" id="sumtext" value="0" >

Answer 1

更新checkOnly函数以将名称添加为arg:

function checkOnly(chk, name){
var obj = document.getElementsByName(name);
for(var i=0; i<obj.length; i++){
if(obj[i] != chk){
obj[i].checked = false;
}
}
}

在HTML更新方法中，将name作为第二个参数传递：

No.1 Question<br>
<br>
<input type="checkbox" name="q1" value="1"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer1<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q1" value="0"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer4
</p>

No.2 Question<br>
<br>
<input type="checkbox" name="q2" value="1"
onclick="javascript:checkOnly(this, 'q2');calc(this, 'q2')"  class="sum" >Answer1<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q2" value="0"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer4
</p>
<input type="text" id="sumtext" value="0" >

var sum=0;
function calc(cBox) {
var sumtext = document.getElementById("sumtext");
if(cBox.checked)
sum += parseInt(cBox.value);
else
sum -= parseInt(cBox.value);
sumtext.value = sum;
}

function checkOnly(chk, name){
var obj = document.getElementsByName(name);
for(var i=0; i<obj.length; i++){
if(obj[i] != chk){
obj[i].checked = false;
}
}
}

No.1 Question<br>
<br>
<input type="checkbox" name="q1" value="1"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer1<br>
<input type="checkbox" name="q1" value="2"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q1" value="3"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q1" value="4"
onclick="javascript:checkOnly(this, 'q1');calc(this)"  class="sum" >Answer4
</p>

No.2 Question<br>
<br>
<input type="checkbox" name="q2" value="1"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer1<br>
<input type="checkbox" name="q2" value="2"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer2<br>
<input type="checkbox" name="q2" value="3"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer3<br>
<input type="checkbox" name="q2" value="4"
onclick="javascript:checkOnly(this, 'q2');calc(this)"  class="sum" >Answer4
</p>
<input type="text" id="sumtext" value="0" >