複製狗狗新增狗狗
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
<!--點選複製狗狗就在狗狗後面賦值一條狗狗，點選新增狗狗就在該狗狗前面新增一條新的狗狗-->
<script>
function copyImg(){
var dog = document.getElementById("img1");
var copyDog = dog.cloneNode(false);
document.body.appendChild(copyDog);
}
function addImg(){
var dog1 = document.getElementById("img1");
var addDog = document.createElement("img");
addDog.setAttribute("src","img/banner4.jpg");
addDog.setAttribute("alt","可愛的狗狗");
addDog.setAttribute("border","1");
/*addDog.setAttribute("width","200px");
addDog.setAttribute("height","200px");*/
addDog.width=200;
addDog.height=100;
document.body.insertBefore(addDog,dog1);
}
</script>
</head>
<body>
<h2>建立並插入節點</h2>
<input id="copyBtn" type="button" value="複製狗狗" onclick="copyImg()" />
<input id="addBtn" type="button" value="增加狗狗" onclick="addImg()"/><br />
<img id="img1" src="img/banner3.jpg" border="1" alt="可愛的狗狗"/>
</body>
</html>
