!DOCTYPE html>
html lang="en">
head>
meta charset="UTF-8">
title>Document/title>
script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js">/script>
style type="text/css">
body{
margin:0;
padding: 0;
}
form{
width: 500px;
margin:40px auto;
}
.search-wrap{
position: relative;
}
li{
padding: 0;
padding-left: 10px;
list-style: none;
}
li:hover{
background-color: #ccc;
color: #fff;
cursor: pointer;
}
#xiala{
position: absolute;
top: 40px;
left: 0;
background-color: #c2c2c2;
width: 200px;
margin:0;
padding: 0 ;
display: none;
}
/style>
/head>
body>
form action="">
div class="search-wrap">
input type="text" id="search">
ul id="xiala">
/ul>
input type="button" value="go" id="sousuo">
div id="searVal" style="display:inline-block;border:1px solid #ccc">/div>
/div>
/form>
/body>
script type="text/javascript">
var search=$("#search");
search.on("input",function(){ //輸入框內(nèi)容改變發(fā)請求
$.ajax({
url:'a.txt',
type:'GET',
async:true,
data:{value:$("#search").val()},
success:function(data){
var arr=data.split(',');
console.log(arr);
$("#xiala").html("");
$.each(arr,function(i,n){
var oLi=$("li>"+arr[i]+"/li>");
$("#xiala").append(oLi);
$("#xiala").css("display","block");
})
}
});
$("#xiala").css("display","block"); //內(nèi)容改變下拉框顯示
$("#searVal").html(search.val())
})
function stopPropagation(e) {
if (e.stopPropagation){
e.stopPropagation();
}else{
e.cancelBubble = true;
}
}
$(document).on('click',function(){ //點(diǎn)擊頁面的時候下拉框隱藏
$("#xiala").css("display","none");
});
$(document).on("click","#xiala li",function(){ //點(diǎn)擊下拉框選項(xiàng)的時候改變輸入框的值
search.val($(this).text());
$("#searVal").html($(this).text());
$("#xiala").css("display","none");
})
/script>
/html>
更多關(guān)于PHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《PHP+ajax技巧與應(yīng)用小結(jié)》、《PHP網(wǎng)絡(luò)編程技巧總結(jié)》、《PHP基本語法入門教程》、《php面向?qū)ο蟪绦蛟O(shè)計入門教程》、《php字符串(string)用法總結(jié)》、《php+mysql數(shù)據(jù)庫操作入門教程》及《php常見數(shù)據(jù)庫操作技巧匯總》
