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html 轮播图

html 轮播图

作者: 逸曦穆泽 | 来源:发表于2019-03-07 18:28 被阅读0次

1、最近突然要做一个轮播图,原来做的一个demo轮播图不怎么适合:

 $(".apl_home_layered ul li").eq(index).fadeIn(500).siblings().hide();

2、然后,自己就凑合的写了一个(记得引入图片路径)

<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>轮播图</title>
  <script typet="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
  <!-- css 样式-->
  <style type="text/css">
     ul,li,img{border:0px;list-style-type: none;}
    .apl_home_img_first{width: 800px; height: 600px;}
    .home_slideshow{position:relative;}
    .apl_home_layered ul li{display:none;}
    .home_hoves{position:absolute;bottom:0;left:50%;transform: translate(-50%,0);}
    .home_hover{cursor:pointer;position:relative;display:inline-block;width:12px;height:12px;margin:12px;border-radius:8px;background:#227FF;opacity:0.7;}
  </style>
 </head>
 <body>
    <div class="apl_home_layered home_slideshow">
        <ul>
            <li style="display:block;"><a href="#"><img id="home_first_img" src="images/spring.jpg" class="apl_home_img_first" alt="1"/></a></li>
            <li><a href="#"><img id="home_first_img" src="images/summer.jpg" class="apl_home_img_first" alt="2" /></a></li>
            <li><a href="#"><img id="home_first_img2" src="images/autumn.jpg" class="apl_home_img_first" alt="3" /></a></li> 
            <li><a href="#"><img id="home_first_img3" src="images/winter.jpg" class="apl_home_img_first" alt="4" /></a></li> 
        </ul>
        <p class="home_hoves" >
            <span class="home_hover"></span>
            <span class="home_hover"></span>
            <span class="home_hover"></span>
            <span class="home_hover"></span>
        </p>
    </div>
 </body>
 <script>
    var index = 0;//标记
    var time;//定时器
    $(document).ready(function(){ 
        var len=$(".apl_home_layered ul li").length;
        //循环
        function showstart(){
            index++;
            if(index == len){
                index = 0;
            }//加载到最后一张,重新开始
            $(".apl_home_layered ul li").eq(index).fadeIn(500).siblings().hide();
            var i = $(".home_hoves span").eq(index).css("background-color","#227FFE").siblings().css("background-color","#777");//得到该节点并设置背景样式,其它的兄弟节点设置背景样式
        }
        //定时
        function action(){
            time = setInterval(function(){showstart();}, 5000);//定时加载showstart()方法
        }
        //鼠标移入
        $(".home_hoves span").mouseover(function(){
            $(this).css("background-color","#227FFE").siblings().css("background-color","#777");
            var s = $(this).index();
            $(".apl_home_layered ul li").eq(s).fadeIn(500).siblings().hide();
            //console.log(s);
            clearInterval(time);//移除定时器
        });
        //鼠标移出
        $(".home_hoves span").mouseout(function(){
            action();//加载定时器
        });
        action();//初始化加载action()方法
    }); 
</script>  
</html>

3、之前的轮播图:(这个是原生的,没用到jQuery,记得引入图片路径)

<html >
<head>
 <title>轮播图</title>
</head>
<body align="center" onload="start()">
       <img id="imgs" src = "images/spring.jpg" width="400px" height="400px"><br>
       <span  style="cursor:pointer;color:red" onmouseover="stop(0)"onmouseleave="start()">春天</span>
       <span  style="cursor:pointer;color:green" onmouseover="stop(1)"onmouseleave="start()">夏天</span>
       <span  style="cursor:pointer;color:yellow" onmouseover="stop(2)"onmouseleave="start()">秋天</span>
       <span  style="cursor:pointer;color:purple" onmouseover="stop(3)"onmouseleave="start()">冬天</span>
</body>
<script>
   var index = 0;
   function showstart(){
     var image = ["images/spring.jpg","images/summer.jpg","images/autumn.jpg","images/winter.jpg"];
     var a = document.getElementsByTagName("img");
     a[0].src = image[index];
     index++;
     if(index == 4){
       index = 0;
     }
   }

   var time;
   function start(){
       time = setInterval("showstart()",1000);
   }
   
   function stop(i){
       clearInterval(time);
       index = i;
       showstart();
   }
</script>
</html>

4、拥有一个自己的主观思想,生活就很简单(生活不是学习,是调节)

生活中,有忧伤就有快乐;而我,是在快乐中忧伤;独行的路上,不是在享受着快乐,而是忍受着孤独,增强韧性,品味心声!

5、在工作中,会使用一个轮播的插件更好:swiper

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