冬天，洁白的雪花慢慢地飘落下来，落到这里，飘到那里，我们仿佛置身于童话般的雪白世界。在苍茫的大海上，狂风卷集着乌云。在乌云和大海描写大海的散文之间，海燕像黑色的闪电，在高傲的飞翔。
这种使用场景为当首页有几个链接需要选择的时候，使用键盘就可以进行触发行为
复制下来放本地用吧 网页上直接测试有问题
效果图：
下面是demo代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>9</title>
<script type="text/javascript" src="http://cdn.static.runoob.com/libs/jquery/1.10.2/jquery.min.js"></script>
<style type="text/css">
.active{
background: pink;
}
</style>
</head>
<body>
<a rel="nofollow noopener noreferrer" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="aa(111)">111111111111111111</a>
<a rel="nofollow noopener noreferrer" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="aa(2222)">222222222222222222</a>
<a rel="nofollow noopener noreferrer" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="aa(3333)">333333333333333333333</a>
<a class="active" rel="nofollow noopener noreferrer" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" onclick="aa(44444)">4444444444444444444444</a>
<!-- <a rel="nofollow noopener noreferrer" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >111111111111111</a> -->
<!-- <script type="text/javascript">
$("body").on("click",function(){
var $active=$(".active");
var index=$active.index();
var totalLength=$("div").length;
if (index==totalLength-1) {
$($("div")[0]).addClass("active").siblings("div").removeClass("active");
}else{
$active.next().addClass("active").siblings("div").removeClass("active");
}
})
</script> -->
<script type="text/javascript">
document.onkeydown=function(event){
var e = event || window.event || arguments.callee.caller.arguments[0];
if(e && e.keyCode==9){
// console.log(9999);
var $active=$(".active");
var index=$active.index();
var totalLength=$("a").length;
if (index==totalLength-1) {
$($("a")[0]).addClass("active").siblings("a").removeClass("active");
}else{
$active.next().addClass("active").siblings("a").removeClass("active");
}
return false;
}
if(e && e.keyCode==13){ // enter 键
var $active=$(".active");
// var aa=$active.value;
// $active.click(function(event) {
// /* Act on the event */
// });
$active.trigger("click");
// console.log(aa);
// console.log(9999);
}
};
</script>
<!-- <script type="text/javascript">
var $active=$(".active");
var aa=$active.value;
console.log(aa);
</script> -->
<script type="text/javascript">
function aa(ss){
alert(ss);
}
</script>
<!-- <script type="text/javascript">
var arr=[1,2,3];
var index = Math.floor((Math.random()*arr.length));
console.log(arr[index]);
</script> -->
</body>
</html>
以上就是本文的全部内容，希望本文的内容对大家的学习或者工作能带来一定的帮助，同时也希望多多支持！
