非博主原创，学习过程中，记录一下，代码依赖jquery。

HTML代码：

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<div class="slide-container">
    <div class="slide-item fade">
        <img src="images/img_fjords_wide.jpg" />
        <p class="slide-text">文本信息1</p>
    </div>
    <div class="slide-item fade">
        <img src="images/img_mountains_wide.jpg" />
        <p class="slide-text">文本信息2</p>
    </div>
    <div class="slide-item fade">
        <img src="images/img_nature_wide.jpg" />
        <p class="slide-text">文本信息3</p>
    </div>
    <a href="javascript:;" class="prev">&lt;</a>
    <a href="javascript:;" class="next">&gt;</a>
    <div class="slide-num"></div>
</div>

CSS代码：

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* {
    margin: 0;
    padding: 0
}

body {
    font-family: verdana, sans-serif;
}

.slide-container {
    width: 1000px;
    position: relative;
    margin: 50px auto;
}

.slide-item {
    position: relative;
}

.slide-text {
    position: absolute;
    bottom: 8px;
    width: 100%;
    color: #fff;
    font-size: 16px;
    text-align: center;
}

.prev,
.next {
    position: absolute;
    top: 50%;
    margin-top: -30px;
    cursor: pointer;
    color: #fff;
    font-size: 30px;
    font-weight: bold;
    font-family: "宋体";
    transition: all .6s ease;
    z-index: 10;
    text-decoration: none;
}

.prev {
    left: 10px;
}

.next {
    right: 10px;
}

.slide-num {
    margin-top: 10px;
    text-align: center;
}

.dot {
    margin: 0 4px;
    display: inline-block;
    width: 14px;
    height: 14px;
    cursor: pointer;
    background: #bbb;
    border-radius: 50%;
    transition: all .3s ease;
}

.dot:hover,
.dot.active {
    background: #717171;
}

.fade {
    animation-name: fade;
    animation-duration: 1.5s;
}

@keyframes fade {
    from {
        opacity: .4
    }
    to {
        opacity: 1
    }
}

JS代码：

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var sIndex = 1; //初始化显示图片
var timer = null; //定时器
var $prev = $(".prev"),
    $next = $(".next");
showSlides(sIndex);
//核心代码
function showSlides(n) {
    var $slideItem = $(".slide-item");
    var $slideNum = $(".slide-num");
    var str = '';
    //自动添加图片序号
    if ($slideNum.find("span").length == 0) {
        for (var i = 0; i < $(".slide-item").length; i++) {
            str += '<span class="dot" onclick="currentSlide(' + (i + 1) + ')"></span>';
        }
        $slideNum.append(str);
    }
    //切换到最后一张			
    if (n > $slideItem.length) {
        sIndex = 1;
    }
    //切换到第一张
    if (n < 1) {
        sIndex = $slideItem.length;
    }
    //全部隐藏
    $slideItem.hide();
    //只显示一张
    $slideItem.eq(sIndex - 1).show();
    //显示对应的图片序号
    $slideNum.find("span").eq(sIndex - 1).addClass("active").siblings().removeClass("active")
}
//上一张，下一张
function plusSlides(n) {
    sIndex += n;
    showSlides(sIndex);
}
//序号
function currentSlide(n) {
    sIndex = n;
    showSlides(sIndex);
}
//上一张
$prev.click(function () {
    plusSlides(-1);
})
//下一张
$next.click(function () {
    plusSlides(1);
})
//自动播放
function autoShowSlide() {
    sIndex++;
    showSlides(sIndex);
}
timer = setInterval(autoShowSlide, 2000);
//清除定时器
$(".slide-container").hover(function () {
    clearInterval(timer);
}, function () {
    timer = setInterval(autoShowSlide, 2000);
})