在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(cainiaoplay.com)</title>
</head>
<body>

<p id="demo">单击按钮给数组添加新的元素:</p>
<button onclick="myFunction()">点我</button>
<script>
var fruits = ["Banana", "Orange", "Apple", "Mango"];
function myFunction(){
	fruits.push("Kiwi","Lemon","Pineapple")
	var x=document.getElementById("demo");
	x.innerHTML=fruits;
}
</script>

</body>
</html>

源代码

动行结果