![04JS高级动态添加属性和删除属性 04JS高级动态添加属性和删除属性](https://image.shishitao.com:8440/aHR0cHM6Ly9ia3FzaW1nLmlrYWZhbi5jb20vdXBsb2FkL2NoYXRncHQtcy5wbmc%2FIQ%3D%3D.png?!?w=700&webp=1)
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script type ="text/javascript">
var obj = new Object();
obj.name = "张三"; //添加属性
alert(obj.name);
delete obj.name; //删除属性
</script>
</head>
<body> </body>
</html>