Collection
Collection
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
<!DOCTYPE html>
<html lang="zh">
<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 type="text/css">
#box{
width: 300px;
height: 300px;
border: 1px solid red;
}
</style>
</head>
<body>
<div id="box">
娱乐新闻(过时新闻)
狗哥前日和旺儒在小树林两个小时未出来一起嗨皮 被我报偷拍
</div>
<button onclick="update()">刷新</button>
</body>
<script type="text/javascript">
var box = document.getElementById('box');
function update(){
//显示一个等待图片给用于用于操作
box.innerHTML = '<img src="./3.gif" width="100%" height="100%">';
//通过ajax请求得到新的新闻
var ajax = new XMLHttpRequest();
ajax.open('get','./news.php',true);
ajax.send();
ajax.onreadystatechange = function(){
if(ajax.readyState ==4 && ajax.status == 200){
var result = ajax.responseText;
box.innerHTML = result;
}
}
}
</script>
</html>点击 "运行实例" 按钮查看在线实例
