原文为 https://www.cnblogs.com/LuoXiaoTing604404828/p/5124207.html
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>获取checkbox后的文本</title>
</head>
<script language="javascript">
function getChkValue(){
var obj=document.getElementsByName("intrests");
for(var i=0;i<obj.length;i++){
if(obj[i].checked){
alert(obj[i].value+","+obj[i].nextSibling.nodeValue);
}
}
}
</script>
<body>
<form name="form1" method="post" action="">
<input type="checkbox" name="intrests" value="1">a<br>
<input type="checkbox" name="intrests" value="2">b<br>
<input type="checkbox" name="intrests" value="3">c<br>
<input type="checkbox" name="intrests" value="4">d<br>
<input type="checkbox" name="intrests" value="5">e<br>
<input type="checkbox" name="intrests" value="6">f<br>
<input type="checkbox" name="intrests" value="7">g<br>
<input type="checkbox" name="intrests" value="8">h<br><br>
<input type="button" onclick="getChkValue()" value="提交">
</form>
</body>
</html>