4.图片左轮播图（swiper）

一、html部分
二、js部分
三、源代码部分
 1 <body>
 2     <div id="box">
 3         <img src="imges/111.jpg" alt="" style="opacity: 1;">
 4         <img src="imges/222.jpg" alt="" style="opacity: 0; ">
 5         <img src="imges/333.jpg" alt="" style="opacity: 0; ">
 6         <img src="imges/444.jpg" alt="" style="opacity: 0; ">
 7         <img src="imges/555.jpg" alt="" style="opacity: 0; ">
 8         <ul id="tag">
 9             <li style="background-color:green;">1</li>
10             <li style="background-color:red;">2</li>
11             <li style="background-color:red;">3</li>
12             <li style="background-color:red;">4</li>
13             <li style="background-color:red;">5</li>
14         </ul>
15         <div id="left">←</div>
16         <div id="right">→</div>
17     </div>
18     <script>
19         var img = document.getElementsByTagName('img')
20         var li = document.getElementsByTagName('li')
21         var index = 0;
22         function swiper() {
23             index++;
24             if (index > 4) {
25                 index = 0
26             }
27             change();
28             if (index > img.length - 1) {
29                 index = 0
30             }
31         }
32         function change() {
33             for (i = 0; i < img.length; i++) {
34                 // img[i].style.display = 'none';
35                 img[i].style.opacity = '0';
36                 li[i].style.backgroundColor = 'red';
37             }
38             // img[index].style.display = 'block';
39             img[index].style.opacity = '1';
40             li[index].style.backgroundColor = 'green';
41         }
42         left.onclick = function () {
43             clearInterval(time);
44             index--;
45             if (index < 0) {
46                 index = 4
47             }
48             change();
49             time = setInterval(swiper, 1500);
50         }
51         right.onclick = function () {
52             clearInterval(time);
53             index++;
54             if (index > 4) {
55                 index = 0
56             }
57             change();
58             time = setInterval(swiper, 1500)
59         }
60         for (var i = 0; i < img.length; i++) {
61             li[i].className = i;
62             li[i].onmouseover = function () {
63                 index = this.className
64                 change()
65                 clearInterval(time)
66             }
67             li[i].onmouseout = function () {
68                 change()
69                 time = setInterval(swiper, 1500)
70             }
71         }
72         var time = setInterval(swiper, 1500);
73     </script>
74 </body>
4.图片左轮播图（swiper）

猜你喜欢
