代码学习：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Nearth</title>
<style type="text/css">
div{
width:200px;
height: 200px;
background-color: paleturquoise;
}
</style>
<script src="jquery-3.3.1.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
//要求:点击按钮把一个p 标签添加到一个div 中
$(function(){
$("#btn").click(function(){
var pObj=$("<p></p>");
pObj.text("哈哈哈，我又变帅了");
$("#dv").append(pObj);
//把pObj 对象主动的加到div 中
/* pObj.appendTo($("#dv")); */
});
});
</script>
</head>
<body>
<h1>添加元素的另一种方式</h1>
<hr >
<input type="button" name="" id="btn" value="创建元素" />
<div id="dv"></div>
</body>
</html>
敲代码听歌是一种习惯·············································
