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JavaScript修改标签样式的属性值
修改界面上一个div的长宽，并使它一直变大
效果图：
变大：
代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script>
window.onload = function() {
window.setInterval(changeStyle, 3000);
}
function changeStyle() {
var divEle = document.getElementById("divEle");
var height = divEle.style.height; //height -> 100px 需要转换
var width = divEle.style.width; //width -> 100px 需要转换
height = parseInt(height) * 2; // height -> 转换后乘以2,200
width = parseInt(width) * 2; //width -> 转换后乘以2,200
divEle.style.height = height + "px"; //记得加上单位“px”
divEle.style.width = width +"px";
}
</script>
</head>
<body>
<div id="divEle" style="height: 100px; width: 100px; background-color: red;"></div>
</body>
</html>