自动切换图片

html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title>学习Js</title>
        <script src="js/index.js" type="text/javascript" charset="utf-8"></script>
    </head>
    <body>
        <div id="picwrap">
            <img src="img/pic1.jpg" id="mypic"/>
        </div>
    </body>
</html>

JS

curr = 1;
function changepic(){
    if(curr < 4){
        curr ++;
    }else{
        curr =1;
    }
    var picobj = document.getElementById("mypic");
    picobj.src = 'img/pic' + curr + '.jpg';
    setTimeout(changepic,2000);
}
window.onload = function(){
    changepic();
}
posted @ 2017-11-20 18:14  多弗朗小明  阅读(160)  评论(0)  编辑  收藏  举报