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js實現簡單的輪播效果

utf int ack load blog 輪播 HA 實現簡單 interval

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
        <script type="text/javascript">
            function init(){
                setInterval("changelunbo()",1000);
            }
            var i = 1;
            function
changelunbo(){ i++; var imgE = document.getElementById("lunbo"); imgE.src = "img/2."+i+".jpg"; if(i == 4){ i = 0; } } </script> </head> <body onload="init()">
<img src="img/2.1.jpg"/ id="lunbo"> </body> </html>

js實現簡單的輪播效果