<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<style>
*{
margin:0;
padding: 0;
}
#search{
600px;
margin:0 auto;
margin-top: 100px;
position: relative;
}
#search input{
480px;
height: 100%;
border: 1px solid #b6b6b6;
height: 20px;
padding: 9px 7px;
font: 16px arial;
border: 1px solid #b8b8b8;
border-bottom: 1px solid #ccc;
border-right: 0;
vertical-align: top;
outline: none;
box-shadow: none;
-webkit-appearance: textfield;
background-color: white;
-webkit-rtl-ordering: logical;
user-select: text;
}
#search button{
cursor: pointer;
box-sizing: border-box;
97px;
height: 40px;
line-height: 38px;
padding: 0;
border: 0;
background: none;
background-color: #38f;
font-size: 16px;
color: white;
box-shadow: none;
font-weight: normal;
margin-left: -20px;
}
.result{
position: absolute;
padding: 9px 7px;
background: #ddd;
}
.search-res{
position: absolute;
top: 100%;
left: 0;
480px;
border: 1px solid #b6b6b6;
border-top: none;
}
.search-res li{
list-style-type: none;
line-height: 20px;
padding: 2px 5px;
border-bottom: 1px solid #b6b6b6;
}
.color{
background-color: red;
}
</style>
<script src="../jsonp.js"></script>
</head>
<body>
<div id="search">
<input type="text">
<button>搜索</button>
<ul class="search-res"> </ul>
</div>
</body>
<script>
function Search() {
this.txt=document.querySelector("#search input")
this.ul=document.querySelector(".search-res");
this.ali=this.ul.children
this.j=0;
this.url="https://sp0.baidu.com/5a1Fazu8AA54nxGko9WTAnF6hhy/su" //百度搜索接口
this.addEvent()
}
Search.prototype.addEvent=function () {
var that=this;
this.txt.onkeyup=function () {
that.value=this.value;
that.load()
}
};
Search.prototype.load=function () {
var that=this;
jsonp(this.url,function(res){
console.log(res);
that.res = res.s; //返回的是个对象，s是需要的那个key
that.display();
},{
wd:this.value,
columnName:"cb",
cb:"gkioy"
})
};
Search.prototype.display = function(){ //增加列数
// console.log(this.res)
var str = "";
for(var i=0;i<this.res.length;i++){
str += `<li>${this.res[i]}</li>`
}
this.ul.innerHTML = str;
this.color()
};
Search.prototype.color=function () {
var that=this
for(var i=0;i<this.ali.length;i++){
this.ali[i].onmouseover=function () {
this.style.backgroundColor="red"
};
this.ali[i].onmouseout=function () {
this.style.backgroundColor=""
};
this.ali[i].onclick=function () {
that.txt.value=this.innerHTML;
that.ul.style.display="none"
};
this.txt.onclick=function () {
that.ul.style.display="block"
}
document.onkeydown=function (eve) {
console.log(that.ali.length-1)
var e=eve||window.event
console.log(that.j)
if(e.keyCode==40&& that.txt.value){
if(that.j==that.ali.length-1){
that.j=0
}
else {
that.j++
}
that.ali[that.j].className="color"
};
if(e.keyCode==38 && that.txt.value){
if(that.j==0){
that.j=that.ali.length-1
}
else {
that.j--
}
that.ali[that.j].className="color"
};
}
}
};
new Search()
</script>
</html>