javascript图片轮播代码,供大家参考,具体内容如下
因为自己是新手自学不久,所以代码有很多不规范的地方,请原谅。
html部分代码:
<div id="head"> <button id="prev" onmousedown="p()" onmouseout="cal()"><</button> <img height="500px" width="500px" src="image/dell.jpg" Dell"> <button id="next" onmousedown="n()" onmouseout="cal()">></button> </div>
CSS部分代码:
<style type="text/css">
*
{
 margin: 0;
 padding: 0;
}
#head
{
 width:800px;
 height:500px;
 border-radius: 5px;
 border: 2px solid pink;
 margin: 200px auto;
 text-align: center; 
}
#prev
{
 width: 30px;
 height: 30px;
 border: 0px;
 border-radius: 5px;
 background-color:white;
 color: black;
 position: relative;
 margin-top: 250px;
 float: left; 
}
#next
{
 width: 30px;
 height: 30px;
 border: 0px;
 border-radius: 5px;
 background-color:white;
 color: black;
 position: relative;
 margin-top: 250px;
 float: right; 
}
</style>
javascript部分代码:
<script>
 var prev=document.getElementById("prev");
 var next=document.getElementById("next");
 var img=document.getElementsByTagName("img")[0];
 var imgArr=["image/dell.jpg/dell.jpg","image/dell.jpg/sony.jpg","image/dell.jpg/费列罗.jpg","image/dell.jpg/Nike.jpg"];
 var index=0;
 
 //点击左箭头,切换上一张
 function p(){
 if(index==0)
 {
 index=imgArr.length;
 }
 index--;
 img.src=imgArr[index];
 }
 //点击右箭头,切换下一张
 function n(){
 if(index==imgArr.length)
 {
 index=0;
 }
 img.src=imgArr[index];
 index++;
 }
 //设置自动播放
 time=setInterval("p()",2000);
 
 //鼠标移入箭头内,停止自动播放
 function cal(){
 clearInterval(time);
 }
</script>
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