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  • jquery——幻灯片（只动一屏）

    制作天天生鲜的幻灯片部分

    贴了全部代码：

    main.html:

    <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>天天生鲜-首页</title>
    <link rel="stylesheet" type="text/css" href="css/reset.css">
    <link rel="stylesheet" type="text/css" href="css/main.css">
    <script type="text/javascript" src="js/jquery-1.12.4.min.js"></script>
    <script type="text/javascript" src="js/slide.js"></script>
</head>
<body>
    <div class="header_con">
        <div class="header">
            <div class="welcome fl">欢迎来到天天生鲜</div>
            <div class="user_info fr">

                <div class="user_login_link fl">
                    <a href="#">登陆</a>
                    <span>|</span>
                    <a href="#">注册</a>
                </div>

                <div class="user_welcome fl">
                    欢迎您 : <em>张三</em>
                </div>

                <div class="user_shopping fl">
                    <span>|</span>
                    <a href="#">我的购物车</a>
                    <span>|</span>
                    <a href="#">我的订单</a>
                </div>
            </div>
        </div>
    </div>
    <div class="logo_bar">
        <div class="logo fl">
            <a href="#"><img src="images/logo.png"></a>
        </div>
        <div class="search fl">
            <form>
                <!--placeholder:输入框中有“搜索”两个字，输入文字后消失的一种样式-->
                <input type="text" name="" placeholder="搜索" class="input_text fl">
                <input type="button" name="" value="搜索" class="input_btn fr">
            </form>
        </div>
        <div class="chart fr">
            <a href="#" class="fl">我的购物车</a>
            <span class="fr">0</span>
        </div>
    </div>
    <div class="sub_menu_con">
        <div class="sub_menu">
            <h1 class="fl">全部商品分类</h1>
            <ul class="fl">
                <li><a href="">首页</a></li>
                <li><a href="">手机生鲜</a></li>
                <li><a href="">抽奖</a></li>
            </ul>
        </div>
    </div>
    <div class="center_con" >
        <ul class="main_menu fl">
            <li><a href="" class="fruit">新鲜水果</a></li>
            <li><a href="" class="seafood">海鲜水产</a></li>
            <li><a href="" class="meat">猪肉牛肉</a></li>
            <li><a href="" class="egg">禽类蛋品</a></li>
            <li><a href="" class="vegetable">新鲜蔬菜</a></li>
            <li><a href="" class="ice">速冻食品</a></li>
        </ul>

        <div class="slide_con fl">
            <ul class="slide">
                <li><a href=""><img src="images/slide.jpg" alt="幻灯片"></a></li>
                <li><a href=""><img src="images/slide02.jpg" alt="幻灯片"></a></li>
                <li><a href=""><img src="images/slide03.jpg" alt="幻灯片"></a></li>
                <li><a href=""><img src="images/slide04.jpg" alt="幻灯片"></a></li>
            </ul>

            <div class="prev"></div>
            <div class="next"></div>

            <ul class="points">

            </ul>
        </div>
        <div class="adv fl" >
            <a href=""><img src="images/adv01.jpg" alt="广告"></a>
            <a href=""><img src="images/adv02.jpg" alt="广告"></a>
        </div>
    </div>

    <div class="common_model">
        <div class="common_title">

            <h3 class="fl">新鲜水果</h3>

            <ul class="fl">
                <li><span>|</span></li>
                <li><a href="#">草莓</a></li>
                <li><a href="#">荔枝</a></li>
                <li><a href="#">牛油果</a></li>
            </ul>

            <a href="#" class="more fr">查看更多&gt;</a>
        </div>

        <div class="common_goods_list">
            <div class="goods_banner fl"><img src="images/banner.jpg" alt="商品banner">
            </div>
            <ul class="good_list fl">
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
            </ul>
        </div>
    </div>
    <div class="common_model">
        <div class="common_title">

            <h3 class="fl">新鲜水果</h3>

            <ul class="fl">
                <li><span>|</span></li>
                <li><a href="#">草莓</a></li>
                <li><a href="#">荔枝</a></li>
                <li><a href="#">牛油果</a></li>
            </ul>

            <a href="#" class="more fr">查看更多&gt;</a>
        </div>

        <div class="common_goods_list">
            <div class="goods_banner fl"><img src="images/banner.jpg" alt="商品banner">
            </div>
            <ul class="good_list fl">
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
            </ul>
        </div>
    </div>
    <div class="common_model">
        <div class="common_title">

            <h3 class="fl">新鲜水果</h3>

            <ul class="fl">
                <li><span>|</span></li>
                <li><a href="#">草莓</a></li>
                <li><a href="#">荔枝</a></li>
                <li><a href="#">牛油果</a></li>
            </ul>

            <a href="#" class="more fr">查看更多&gt;</a>
        </div>

        <div class="common_goods_list">
            <div class="goods_banner fl"><img src="images/banner.jpg" alt="商品banner">
            </div>
            <ul class="good_list fl">
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
                <li>
                    <h4>草莓</h4>
                    <a href="#"><img src="images/good_pic.jpg" alt="商品图片"></a>
                    <p>$ 5.00</p>
                </li>
            </ul>
        </div>
    </div>
    <div class="footer">
        <div class="links">
            <a href="">关于我们</a>
            <span>|</span>
            <a href="">联系我们</a>
            <span>|</span>
            <a href="">招聘人才</a>
            <span>|</span>
            <a href="">友情链接</a>
        </div>
        <p>CopyRight © 2016 北京天天生鲜信息技术有限公司 All Rights Reserved<br />

电话：010-****888 京ICP备*******8号</p>
    </div>
</body>
</html>

    main.css:

    body{
    font-family: 'Microsoft YaHei';
    color:#666;
    font-size:12px;
}

/*顶部状态条*/
.header_con{
    height:29px;
    background-color: #f7f7f7;
    border-bottom:1px solid #ddd;
}

.header{
    width:1200px;
    height:29px;
    margin:0 auto;
}

.welcome{
    font:12px/29px 'Microsoft YaHei UI';
}

.user_login_link,.user_welcome, .user_shopping{
    height:29px;
    line-height:29px;
}

.user_login_link a, .user_shopping a{
    color:#666;
}

.user_login_link a:hover,.user_shopping a:hover{
    color:#f80;
}

.user_login_link span, .user_shopping span{
    margin:0 15px;
    color:#cecece;
}

/*把这个块藏起来*/
.user_welcome{
    display:none;
}

.user_welcome em{
    color:#f80;
}


/*左侧菜单样式*/
.logo_bar{
    width:1200px;
    height:115px;
    margin:0 auto;
}

.logo{
    width:151px;
    height:59px;
    margin:29px 0 0 17px;
}

.search{
    width:616px;
    height:38px;
    border:1px solid #37ab40;
    margin:34px 0 0 123px;
    /*雪碧图的放大镜作背景图*/
    background:url(../images/icons.png) 10px -335px no-repeat;
}

.search .input_text{
    width:470px;
    height:37px;
    border:0px;
    margin-left:37px;
    outline:none;
}

.search .input_btn{
    width:100px;
    height:38px;
    background-color: #37ab40;
    border:0;
    font:14px/38px 'Microsoft YaHei UI';
    color:#fff;
    /*鼠标变成手*/
    cursor:pointer;
}

.chart{
    width:200px;
    height:40px;
    margin-top:34px;
}
.chart a{
    width:158px;
    height:38px;
    border:1px solid #ddd;
    font:14px/38px 'Microsoft YaHei UI';
    color:#37ab40;
    text-indent:56px;
    background:url(../images/icons.png) 10px -300px no-repeat #f7f7f7;
}

.chart span{
    width: 40px;
    height:40px;
    background-color:#f80;
    font:bold 18px/40px 'Microsoft YaHei UI';
    text-align:center;
    color:#fff;
}

.sub_menu_con{
    height:40px;
    border-bottom:2px solid #37ab30
}

.sub_menu{
    width:1200px;
    height:40px;
    margin:0 auto;
}

.sub_menu h1{
    width:200px;
    height:40px;
    background-color: #37ab40;
    font:14px/40px 'Microsoft YaHei UI';
    text-align:center;
    color:#fff;
}

.sub_menu ul{
    overflow:hidden;
}

.sub_menu li{
    float:left;
    height:14px;
    padding:0 25px;
    border-left:1px solid #666;
    margin-left:-2px;
    margin-top:13px;
}

.sub_menu li a{
    font:14px/14px 'Microsoft YaHei UI'
    color:#666;
}

.sub_menu li a:hover{
    color:#f80;
}

.center_con{
    width:1200px;
    height:270px;
    margin:0 auto;
}

.center_con .main_menu{
    width:200px;
    height:270px;
    overflow:hidden;
}

.center_con .main_menu li{
    width:198px;
    height:44px;
    border:1px solid #eee;
    margin-top:-1px;
    background:url(../images/icons.png) 166px -260px no-repeat;
}

.center_con .main_menu li a{
    display:block;
    width:198px;
    height:44px;
    text-indent:71px;
    font:14px/44px 'Microsoft YaHei UI';
    color:#333;
    background:url(../images/icons.png) 33px -260px no-repeat;
}

.center_con .main_menu li .fruit{
    background-position: 30px 0px;
}

.center_con .main_menu li .seafood{
    background-position: 30px -41px;
}

.center_con .main_menu li .meat{
    background-position: 30px -87px;
}

.center_con .main_menu li .egg{
    background-position: 30px -132px;
}

.center_con .main_menu li .vegetable{
    background-position: 30px -174px;
}

.center_con .main_menu li .ice{
    background-position: 30px -220px;
}

/*幻灯片样式*/

.slide_con{
    width:760px;
    height:270px;
    position:relative;
    overflow:hidden;

}

/*.slide_con .slide{*/
    /*position:relative;left:0;top:0;760px;height:270px;*/
/*}*/

.slide_con .slide li{
    width:760px;
    height:270px;
    position:absolute;
    left:0;
    top:0;

}

.prev{
    width:15px;
    height:23px;
    /*绝对定位*/
    position: absolute;
    left:11px;
    top:122px;
    background:url(../images/icons.png) -2px -388px no-repeat;
    cursor: pointer;
}

.next{
    width:15px;
    height:23px;
    /*绝对定位，叠加图片*/
    position: absolute;
    left:732px;
    top:122px;
    background:url(../images/icons.png) -2px -428px no-repeat;
    cursor: pointer;
}
.points{
    position: absolute;
    width:100%;
    height:11px;
    left:0;
    bottom:9px;
    text-align:center;
    font-size:0px;
}

.points li{
    width:11px;
    height:11px;
    display:inline-block;
    background-color: #9f9f9f;
    margin:0 5px;
    /*设置圆角，半径为高度的一半*/
    border-radius:50%;
    cursor:pointer;
}

.points .active{
    background-color: #cecece;
}

.adv{
    width:240px;
    height:270px;
}
.adv a{
    float:left;
    width:240px;
    height:135px;
}

/*解决图片下方3像素白边的情况*/
.adv a img{
    display:block;
}

.common_model{
    width:1200px;
    height:340px;
    margin:18px auto 0;
}

.common_title{
    height:38px;
    border-bottom: 2px solid #42ad46;
}

.common_model h3{
    font:bold 16px/38px 'Microsoft YaHei UI';
    color:#37ab40;
}

.common_model .common_title ul{
    height:12px;
    margin:13px 0 0  20px;
}

.common_model .common_title li{
    float:left;
    margin:0 10px;
}


.common_model .common_title li a{
    /*微软雅黑默认有行高*/
    color:#666;
}

.common_model .common_title li a:hover{
    color:#f80;
}

.common_model .common_title .more{
    height:38px;
    line-height:38px;
    color:#666;
}

.common_model .common_title .more:hover{
    color:#f80;
}

.common_model .common_goods_list{
    height:300px;
    width:1200px;
}

.common_model .common_goods_list .goods_banner{
    width:200px;
    height:300px;
}

.common_model .common_goods_list .good_list{
    width:1000px;
    height:300px;
}

.common_model .common_goods_list .good_list li{
    width:249px;
    height:299px;
    border-right:1px solid #ededed;
    border-bottom:1px solid #ededed;
    float:left;
}

.common_goods_list .good_list li:hover{
    width:248px;
    height:298px;
    border:1px solid #ff0;
}

.common_goods_list .good_list li h4{
    height:52px;
    font:14px/52px 'Microsoft YaHei UI';
    color:#666;
    text-align:center;
}

.common_goods_list .good_list li a{
    display:block;
    height:180px;
    width:180px;
    margin:0 auto;
}

.common_goods_list .good_list li p{
    height:52px;
    font:bold 20px/52px 'Microsoft YaHei UI';
    color:#c40000;
    text-align: center;
}

.footer{
    height:145px;
    border-top:2px solid #4ab14e;
    margin-top:30px;
}

.footer .links{
    text-align:center;
    /*有边框就没有margin-top塌陷了*/
    margin-top:40px;
}

.footer .links a{
    color:#4e4e4e;
}

.footer .links a:hover{
    color:#f80;
}

.footer .links span{
    color:#4e4e4e;
    margin:0 10px;
}

.footer p{
    text-align: center;
    line-height:27px;
    color:#4e4e4e;
    margin-top:10px;
}

    reset.css:

    /*不要用网上现成的，不用的标签不要写，会影响性能，标签组选择器*/
body,ul,p,h1,h2,h3,h4,h5,h6,dl,dd,input,select,form{
    margin:0;
    padding:0;
}

/*让h标签继承body类设置的字体大小*/
h1,h2,h3,h4,h5,h6{
    font-size:100%;
}

/*去掉默认. 标签选择器*/
ul{
    list-style: none;
}

/*不倾斜*/
em{
    font-style:normal;
}

/*去掉下划线*/
a{
    text-decoration:none;
}

/*去掉IE下，图片做链接时产生的边框*/
img{
    border:none;
}

/*清除margin-top塌陷和清除浮动*/
.clearfix:before, .clearfix:after{
    content:"";
    /*一个HTML元素和它的子节点像table元素一样。使用基于表格的CSS布局，
    使我们能够轻松定义一个单元格的边界、背景等样式，
    而不会产生因为使用了table那样的制表标签所导致的语义化问题。*/
    display:table;
}

.clearfix:after{
    /*清除左右两边浮动*/
    clear:both;
}

.clearfix{
    zoom:1;
}

.fl{
    float:left;
}

.fr{
    float:right;
}

    slide.js:

    $(function () {

    var $li = $('.slide_con .slide li');
    var len = $li.length;
    var $prev = $('.prev');
    var $next = $('.next');
    var timer = null;

    //将要运动过来的li
    var nowli = 0;
    //当前要离开的li
    var prevli = 0;

    //除了第一个li，其他的li放到右边
    $li.not(':first').css({left:760})

    $li.each(function (index) {
        // 选择li：var $sli = $('li')；
        // 创建li：var $sli = $('<li>')
        var $sli = $('<li>');
        if(index==0)
        {
            $sli.addClass('active');
        }
        //将创建的li增加到points类中
        $sli.appendTo('.points');

    });

    var $points = $('.points li');

    $points.click(function () {
        nowli = $(this).index();
        if(nowli==prevli){return;}
        move();
        $(this).addClass('active').siblings().removeClass('active');
    })

    $prev.click(function () {
        nowli--;
        move();
        $points.eq(nowli).addClass('active').siblings().removeClass('active');
    })

    $next.click(function () {
        nowli++;
        move();
        $points.eq(nowli).addClass('active').siblings().removeClass('active');
    })

    //鼠标放在幻灯片处时停止播放，鼠标离开时继续播放
    $('.slide_con').mouseenter(function(event){
        clearInterval(timer);
    });

    $('.slide_con').mouseleave(function () {
        timer = setInterval(autoplay,4000);
    })

    //自动播放
    //函数没有括号！
    timer = setInterval(autoplay,4000);
    
    function autoplay() {
        nowli++;
        move();
        $points.eq(nowli).addClass('active').siblings().removeClass('active');
    }
    

    function move(){
        if(nowli<0){
            nowli = len-1;
            prevli = 0;

            $li.eq(nowli).css({left:-760});
            //点的很快得时候会有bug，stop()用来解决这个bug
            $li.eq(prevli).stop().animate({left:760});
            $li.eq(nowli).stop().animate({left:0});
            prevli = nowli;
            //停止进行下面的if判断
            return;
        }

        if(nowli>len-1){
            nowli = 0;
            prevli = len-1;

            $li.eq(nowli).css({left:760});
            $li.eq(prevli).stop().animate({left:-760});
            $li.eq(nowli).stop().animate({left:0});
            prevli = nowli;
            return;
        }

        if(nowli>prevli){
            $li.eq(nowli).css({left:760});
            $li.eq(prevli).stop().animate({left:-760});
        }
        else {
            $li.eq(nowli).css({left:-760});
            $li.eq(prevli).stop().animate({left:760});
        }
        $li.eq(nowli).stop().animate({left:0});
        prevli = nowli;
    }
})
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  • 原文地址：https://www.cnblogs.com/gaoquanquan/p/9221012.html
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