標籤：java io for cti 代碼 ar javascript new
我們經常在一些購物網站上看到一些圖片會自動切換，這樣做的作用是減少空間的佔用，能讓瀏覽網頁的人擷取大量的資訊，我們可以利用數組實現自動切換映像的效果，具體操作如下：
開啟網頁文檔，在<head>與</head>之間輸入以下代碼。
<script language="javascript">var img=new Array(3); //建立數組var nums=0;if(document.images){for(i=1;i<=3;i++){img[i]=new Image(); //建立對象執行個體img[i].src="images/00"+i+".jpg"; //設定所有圖片的路徑及名稱}}function fort() //定義圖片切換函數{num++;document.images[0].src=img[nums].src;if(nums==3)nums=0;}function slide() //每隔一秒連續不斷地調用fort()函數{setInterval("fort()",1000);}</javascript>將游標放置在<body>標記內，輸入代碼onload=slide().
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