1.導入圖檔素材
2.就在子產品根目錄上建一個html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JS DOM 示範1</title>
</head>
<body>
<img id="img1" src="img/bage.jpg">
</body>
<script>
var img= document.getElementById("img1");
var flag=false;
img.onclick=function () {
if(flag){
img.src="img/com.jpg";
flag=false;
}else {
img.src="img/bage.jpg";
flag=true;
}
}
</script>
</html>
3.感想
(1)内部方法可以影響外部域