abstract：<!DOCTYPE html><html><head> <meta charset="utf-8"> <title>changeDIV</title> <style type="text/css"> #box{ width: 100px;hei
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>changeDIV</title>
<style type="text/css">
#box{
width: 100px;height: 100px;
background: red;
margin: 20px 80px;
}
</style>
</head>
<body>
<!-- 用按钮控制DIV高度，宽度，颜色，重置，隐藏，显示 -->
<div id="box"></div>
<input type="button" name="" value="变高" onclick="aa()">
<input type="button" name="" value="变宽" onclick="bb()">
<input type="button" name="" value="变色" onclick="cc()">
<input type="button" name="" value="重置" onclick="dd()">
<input type="button" name="" value="隐藏" onclick="ee()">
<input type="button" name="" value="显示" onclick="ff()">
<script type="text/javascript">
var box;
window.onload=function () {
box=document.getElementById('box')
}
function aa(){
box.style.height="400px"
}
function bb(){
box.style.width="400px"
}
function cc(){
box.style.background="pink"
}
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>
</body>
</html>
Correcting teacher：查无此人Correction time：2019-04-01 09:32:45
Teacher's summary：完成的不错。每行代码后面最好增加;号。继续加油