一.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="Web/css/bootstrap.min.css">
<script src="Web/js/jquery-1.8.3.min.js"></script>
</head>
<style>
.search {
display: inline-flex;
height: 35px;
margin: 50px auto;
position: relative;
}
.search input {
border: #eee 1px solid;
background-color: #fff;
outline: none;
200px;
padding: 0 5px;
}
.search button {
background-color: #ff3300;
color: #fff;
border: none;
80px;
}
/*追加到.search的内容后面.然后设置CSS代码, 我们设置他的最小宽度为.search宽度减去搜索按钮的宽度.这样就跟搜索框一样宽.*/
.search ul {
list-style-type:none;
position: absolute;
left: 0;
top: 35px;
border: #eee 1px solid;
min- calc(100% - 80px);
text-align: left;
}
.search ul a {
display: block;
padding: 5px;
}
</style>
<body style="text-align: center;">
<div class="search">
<!--1.搜索框,搜索的点击按钮.-->
<input id="key" type="text" value="" placeholder="请输入需要搜索内容">
<button>搜索</button>
<!--2.下面词语列表-->
<ul id="datalist">
<li><a href="#">武林外传</a> </li>
<li><a href="#">葵花宝典</a> </li>
<li><a href="#">如来佛掌</a> </li>
<li><a href="#">九阴白骨爪</a> </li>
</ul>
</div>
</body>
<script>
//模拟数据
var data = ["编程的人", "武林外传", "葵花宝典", "九阴白骨爪", "武林江湖", "will"];
var ele_key = document.getElementById("key");
ele_key.onkeyup = function (e) {
//处理事件
var val = this.value;
//获取输入框里匹配的数据
var srdata = [];
for (var i = 0; i < data.length; i++) {
if (val.trim().length > 0 && data[i].indexOf(val) > -1) {
srdata.push(data[i]);
}
}
//获取到的数据准备追加显示, 前期要做的事情: 清空数据,然后显示数据列表,如果获取到的数据为空,则不显示
var ele_datalist = document.getElementById("datalist");
ele_datalist.style.visibility = "visible";
ele_datalist.innerHTML = "";
if (srdata.length == 0) {
ele_datalist.style.visibility = "hidden";
}
//将搜索到的数据追加到显示数据列表, 然后每一行加入点击事件, 点击后将数据放入搜索框内, 数据列表隐藏
var self = this;
for (var i = 0; i < srdata.length; i++) {
var ele_li = document.createElement("li");
var ele_a = document.createElement("a");
ele_a.setAttribute("href", "javascript:;");
ele_a.textContent = srdata[i];
ele_a.onclick = function () {
self.value = this.textContent;
ele_datalist.style.visibility = "hidden";
}
ele_li.appendChild(ele_a);
ele_datalist.appendChild(ele_li);
}
}
</script>
</html>