<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>sss</title>
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<body>
<div desc="hhhh">在线学习</div>
<div desc="xxxx">开源产品</div>
<script type="text/javascript">
let divs = document.querySelectorAll("div");
divs.forEach(function(item){
let desc = item.getAttribute("desc");
item.addEventListener("click",function(){
console.log(desc);
console.log(item);
});
item = null;
});
</script>
</body>
</html>
原文：https://www.cnblogs.com/angdh/p/14825291.html