<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>title</title>
<style>
#box {
width: 450px;
margin: 200px auto;
}
#txt {
width: 350px;
}
#pop {
width: 350px;
border: 1px solid red;
}
#pop ul {
margin: 10px;
padding: 0px;
width: 200px;
list-style-type: none;
}
#pop ul li {
}
</style>
</head>
<body>
<div id="box">
<input type="text" id="txt" value="">
<input type="button" value="百度一下" id="btn">
</div>
<script src="common.js"></script>
<script>
var keyWords = ["小杨最纯洁", "小杨一点也不追名逐利", "小李是大家的", "小快好快", "华为这一波很6", "花儿笑了", "苹果禁用微信,用户纷纷下载QQ"];
// 获取文本框注册键盘抬起事件
my$("txt").onkeyup = function () {
// 每一次的键盘抬起都判断页面中有没有这个div
if (my$("dv")) {
// 有就删除
my$("box").removeChild(my$("dv"));
}
// 获取文本输入的内容
var text = this.value;
// 创建临时数组来存放对应上的数据
var tempArr = [];
for (var i = 0; i < keyWords.length; i++) {
// 判断是否是最开始出现的
if (keyWords[i].indexOf(text) == 0) {
tempArr.push(keyWords[i]);//追加
}
}
// 如果文本框是空的,临时数组是空的,则不用创建div
if (this.value.length == 0 || tempArr.length == 0) {
//如果页面中有这个div,删除这个div
if (my$("dv")) {
my$("box").removeChild(my$("dv"));
}
return;
}
// 创建div,把div加入到box中的div中
var dvObj = document.createElement("div");
my$("box").appendChild(dvObj);
dvObj.id = "dv";
dvObj.style.width = "350px";
dvObj.style.border = "1px solid green";
//循环遍历临时数组,创建对应的p标签
for (var i = 0; i < tempArr.length; i++) {
// 创建p标签
var pObj = document.createElement("p");
// 把p加到div中
dvObj.appendChild(pObj);
setInnerText(pObj, tempArr[i]);
pObj.style.margin = 0;
pObj.style.padding = 0;
pObj.style.cursor = "pointer";
pObj.style.marginTop = "5px";
pObj.style.marginLeft = "5px";
// 添加鼠标进入事件
pObj.onmouseover = function () {
this.style.backgroundColor = "yellow";
}
//鼠标离开
pObj.onmouseout = function () {
this.style.backgroundColor = "";
};
}
}
</script>
</body>
</html>