用js自动获取当前年份

HTML代码部分

<!-- HTML -->
<div class="text-center">
    Copyright © <span class="dqnianfen"><script>window.onload=function(){var currentYear=new Date().getFullYear();var yearElement=document.querySelector('.dqnianfen');if(yearElement){yearElement.textContent=currentYear}};</script></span> ( <span class="yuming"><script language="javascript">host=document.domain;document.write(host)</script></span> ) <span class="pozhehao">- </span><br><span class="foot_domain">Powered by XXX</span>
</div>

Javascript代码部分

<!-- Year -->
<script type="text/javascript">
window.addEventListener('load',function(){var currentYear=new Date().getFullYear();var yearElement=document.querySelector('.dqnianfen');if(yearElement){yearElement.textContent=currentYear}});
</script>