通过JavaScript，我们可以阻止超链接的跳转。
方法如下：
（1）操作超链接的 href 属性
写法一：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<a href="javascript:void(0);" rel="external nofollow" >超链接</a>
</body>
</html>
写法二：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<a href="javascript:;" rel="external nofollow" >超链接</a>
</body>
</html>
点击链接，链接并不会进行跳转。
（2）阻止链接的默认行为
写法一：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<a href="https://www.baidu.com" rel="external nofollow" rel="external nofollow" >百度</a>
<script>
var link = document.querySelector("a");
link.addEventListener('click',function(e){
e.preventDefault();
})
</script>
</body>
</html>
写法二：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<a href="https://www.baidu.com" rel="external nofollow" rel="external nofollow" >百度</a>
<script>
var link = document.querySelector("a");
link.onclick = function (e) {
return false;
}
</script>
</body>
</html>
此时，点击超链接，也不会进行跳转。
