<html>
<body>
<a id="myAnchor" href="https://w3school.com.cn/">访问 W3School.com.cn</a>
<p>preventDefault() 方法将阻止上面的链接跟随 URL。</p>
<script>
document.getElementById("myAnchor").addEventListener("click", function(event){
event.preventDefault()
});
</script>
</body>
</html>