abstract：这节学到了JS取到DIV的值，并做相应修改！<html> <head> <meta charset="UTF-8"> <title&g
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
#box{
width:100px;
height:100px;
background:red;
}
</style>
</head>
<body>
<div id="box"></div>
<input type="button"value="height"onclick="aa()">
<input type="button"value="width"onclick="bb()">
<input type="button"value="color"onclick="cc()">
<input type="button"value="back"onclick="dd()">
<input type="button"value="move"onclick="ee()">
<input type='button'value='show'onclick='ff()'>
</body>
</html>
<script>
var box;
window.onload=function(){
box=document.getElementById('box')
}
function aa(){
box.style.height="500px";
}
function bb(){
box.style.width="500px";
}
function cc(){
box.style.background="yellow";
}
function dd(){
box.style.height="100px";
box.style.width="100px";
box.style.background="red";
}
function ee(){
box.style.display="none";
}
function ff(){
box.style.display="block";
}
</script>
Correcting teacher：天蓬老师Correction time：2019-04-13 16:46:03
Teacher's summary：获取页面元素, 是对页面操作的第一步, 也是最关键的一步,如何来获取, 有很多方式的时候, 一定要选最简单的