jQuery Realizes a Simple Carousel Graph

  • 2021-07-22 08:39:47
  • OfStack

html code:


<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title> Carousel exercises </title>
<link rel="stylesheet" href="css/css.css" rel="external nofollow" type="text/css"/>
</head>
<body>
<ul class="back">      <!--  Background picture  -->
    <li class="l1"></li>
    <li class="l2"></li>
    <li class="l3"></li>
    <li class="l4"></li>
    <li class="l5"></li>
</ul>
<ul class="point">     <!--  Control button  -->
    <li class="active"></li>
    <li></li>
    <li></li>
    <li></li>
    <li></li>
</ul>
<div class="btn">     <!--  Left and right control buttons  -->
    <span class="prev"></span>
    <span class="next"></span>
</div>
</body>
<script src="js/jquery-1.7.2.js"></script>
<script src="js/jq.js"></script>
</html>

css code:


*{margin:0; padding: 0;}
ul li{list-style: none;}
.back{height: 400px; overflow: hidden; margin-top:100px;}
.back li{width: 100%; height: 400px; margin:0 auto;}
.back li.l1{background: red;}
.back li.l2{background: yellow;}
.back li.l3{background: blue;}
.back li.l4{background: black;}
.back li.l5{background: green;}
.point{text-align: center; margin-top: -30px;}
.point li{ width: 20px; height: 20px; border:2px solid #fff; border-radius: 10px; box-sizing:border-box; display: inline-block;}
.point li.active{background: #fff;}
.btn{ position: relative;}
.btn span{ display: inline-block; vertical-align: top; width: 100px; height: 100px; background: rgba(0,0,0,.5); position: absolute; top:-235px; cursor: pointer;}
.btn .prev{left: 0}
.btn .next{ right: 0;}

js code:


$(function(){
    function banner(a,b,c,d,e){         // a It's a background picture, b Yes active , c Is the background corresponding button, d Yes 1 Page, e Is under 1 Page 
          index=0;
          len=$(a).length-1;
          function teb(index){
                $(c).eq(index).addClass(b).siblings('').removeClass(b);
                $(a).eq(index).fadeIn(300).addClass('curr').siblings('').fadeOut(300).removeClass('curr');
          };
          $(c).click(function(){
                index=$(this).index();
                teb(index);
          });
          $(d).click(function(){
                index--;
                if(index<0){
                      index=len;
                };
                teb(index);
          });
          $(e).click(function(){
                index++;
                if(index>len){
                      index=0;
                };
                teb(index);
          });
          function timeRun(){
                time=setInterval(function(){
                      index++;
                      if(index>len){
                            index=0;
                      };
                      teb(index);
                },3000);
          };
          timeRun();
    };
    banner('.back>li','active','.point>li','.prev','.next');
});

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