本文实例为大家分享了js实现简单的轮播图效果的具体代码，供大家参考，具体内容如下
代码：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
<!DOCTYPE html><html><head> <meta charset="utf-8" /> <title></title> <link rel="stylesheet" type="text/css" href="css/style.css" /> <style> * { margin: 0; padding: 0; } .box { width: 100%; height: 500px; border: 1px solid; } </style> <script src="./js/new_file.js"></script></head><body> <div class="box_1"> <div class="c-banner"> <div class="banner"> <ul id="banner"> <li><img src="img/su_ning1.png"></li> <li><img src="img/su_ning2.png"></li> <li><img src="img/su_ning3.png"></li> <li><img src="img/su_ning4.png"></li> <li><img src="img/su_ning5.png"></li> <li><img src="img/su_ning6.png"></li> <li><img src="img/su_ning7.png"></li> <li><img src="img/su_ning8.png"></li> </ul> </div> <div class="nexImg" id="nexImg"> <img src="img/nexImg.png" /> </div> <div class="preImg" id="preImg"> <img src="img/preImg.png" /> </div> <div class="jumpBtn"> <ul id="jumpBtn"> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> </ul> </div> </div></body></html> |
js:
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
window.onload = function() { //banner 自动播放 var oBanner = document.getElementById('banner'); var aLi = oBanner.getElementsByTagName('li'); var oJumpBtn = document.getElementById('jumpBtn'); var aBtn = oJumpBtn.getElementsByTagName('li'); var oPreImg = document.getElementById('preImg'); var oNexImg = document.getElementById('nexImg'); var iNow = 0; var timer = null; for (var i = 0; i < aBtn.length; i++) { aBtn[i].index = i; aBtn[i].onclick = function() { iNow = this.index; tab(); }; } function tab() { for (var i = 0; i < aBtn.length; i++) { aBtn[i].style.background = '#ccc'; aLi[i].style.opacity = 0; } aBtn[iNow].style.background = '#CF0F32'; aLi[iNow].style.opacity = 1; } function tick() { iNow++; if (iNow == aBtn.length) { iNow = 0; } tab(); } timer = setInterval(tick, 2000); oPreImg.onclick = function() { iNow--; if (iNow < 0) { iNow = aBtn.length - 1; } tab(); }; oNexImg.onclick = tick; oBanner.onmouseover = function() { clearInterval(timer); }; oBanner.onmouseout = function() { timer = setInterval(tick, 2000); };} |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/weixin_52630341/article/details/111053240
