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                            # 專題頁面常用布局


~~~
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>城市頁面</title>
    <link rel="stylesheet" href="./css/bootstrap.min.css">
    <link rel="stylesheet" href="./css/bootstrap-theme.min.css">
    <link rel="stylesheet" href="./css/iconfont.css">
    <script src="js/jquery-3.3.1.min.js"></script>
    <script src="js/jquery.easing.min.js"></script>
    <script src="js/jquery.mousewheel.js"></script>
    <script src="js/bootstrap.min.js"></script>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        html,body {
            width: 100%;
            height: 100%;
        }
        .swiper_container {
            overflow: hidden;
            width: 100%;
            height: 100%;
        }
        .slide {
            width: 100%;
        }

        .swiper_show {
            width: 100%;
            height: 100%;
            position: relative;
            top: 0;
            left: 0;
        }
        
        .part1 {
            background-image: url('./image/qb.png');
            background-size: 100% 100%;
        }

        .part2 {
            background: #fff;
        }

        .part3 {
            background: yellow;
        }

        .part4 {
            background: red;
        }

        .part5 {
            background: blue;
        }

        .part6 {
            background: green;
        }

        .part7 {
            background: bisque;
        }

        .swiper_list {
            position: fixed;
            top:  50%;
            left: 30px;
            transform: translateY(-50%);
        }

        .swiper_dot {
            display: block;
            width: 15px;
            height: 15px;
            line-height: 15px;
            text-align: center;
            margin-bottom: 5px;
        }
        .swiper_dot span {
            display: inline-block;
            width: 8px;
            height: 8px;
            background-color: #000;
            border-radius: 50%;
            transition: all ease 0.5s;
        }

        .swiper_dot span:hover {
            width: 10px;
            height: 10px;
        }

        .swiper_dot.active span {
            width: 12px;
            height: 12px;
            background-color: #fff;
        }



        .button_group {
            position: fixed;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
        }

        .button .l-icon  {
            display: block;
            width: 48px;
            height: 48px;
            text-align: center;
            text-decoration: none;
            line-height: 48px;
            background-color: #909399;
            font-size: 30px;
            color: #fff;
        }

        .button {
            margin: 2px 0;
            position: relative;
            display: block;
        }

        .button:hover {
            text-decoration: none;
        }

        .button.active {
            background-color: #000;
        }

        .l-qrcode {
            position: absolute;
            right: 48px;
            bottom: 0;
        }

        .l-qrcode img {
            width: 0;
            height: 0;
            transform-origin: right bottom;
            transform: scale(0);
            transition: all ease 0.5s;
        }
        .button[animate="show"]:hover .l-qrcode img {
            width: 120px;
            height: 120px;
            transform: scale(1);
        }

        .l-info {
            width: 74px;
            position: absolute;
            right: 58px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 16px;
            text-align: center;
        }

        .l-info span {
            display: block;
            background-color: rgba(0,0,0, 0.6);
            padding: 5px;
            color: #fff;
            border-radius: 5px;
            visibility: hidden;
            opacity: 0;
            transition: all ease 0.5s;
            position: relative;
        }
        .l-info span[trangle]::before {
            content: '';
            display: block;
            position: absolute;
            top: 50%;
            right: -16px;
            width: 0;
            height: 0;
            transform: translateY(-50%);
            border-top: 8px solid transparent;
            border-right: 8px solid transparent;
            border-left: 8px solid  rgba(0,0,0,0.6);
            border-bottom: 8px solid transparent;
        }

        .button[animate="show"]:hover .l-info span{
            opacity: 1;
            visibility: visible;
        }

        .button[animate="top"] {
            opacity: 0;
            visibility: hidden;
        }

    </style>
</head>
<body>
  <section class="swiper_container">
      <div class="swiper_show">
          <div class="slide part1"></div>
          <div class="slide part2"></div>
          <div class="slide part3"></div>
          <div class="slide part4"></div>
          <div class="slide part5"></div>
          <div class="slide part6"></div>
          <div class="slide part7"></div>
      </div>
      <!--輪播點-->
      <div class="swiper_list">
          <div data-index='0' class="swiper_dot"><span></span></div>
          <div data-index="1" class="swiper_dot"><span></span></div>
          <div data-index="2" class="swiper_dot"><span></span></div>
          <div data-index="3" class="swiper_dot"><span></span></div>
          <div data-index="4" class="swiper_dot"><span></span></div>
          <div data-index="5" class="swiper_dot"><span></span></div>
          <div data-index="6" class="swiper_dot"><span></span></div>
      </div>
  </section>

   <div class="button_group">
       <div animate="top" class="button">
           <i class="l-icon iconfont icon-xiangshangjiantou"></i>
       </div>

       <a animate="show" class="button">
           <i class="l-icon iconfont icon-liaotian"></i>
           <div class="l-info">
               <span trangle>免費咨詢</span>
           </div>
       </a>

       <div animate="show" class="button">
           <i class="l-icon iconfont icon-erweima"></i>
           <div class="l-qrcode">
               <img src="./image/qrcode.jpg" alt="">
           </div>
       </div>
   </div>
</body>
<script>
    let FullPage = function () {
        // 初始化參數變量
        let $height = this.$height = $('.swiper_container').height()
        let slide= $('.slide')
        slide.css({'height': $height})
        let len = slide.length
        $('.swiper_show').css({"height": len * 974})


        // 內置對象
        let Scroll = function () {

        }

        // 頁面翻滾函數
        Scroll.prototype.start = function ($index, $height) {
            let offset = -$index * $height
            $(".swiper_show").queue('scroll', function (next) {
                $(this).animate({"top": offset+"px"}, 500, function () {
                    FullPage.$tottle = true
                })
                next()
            })
            $('.swiper_show').dequeue('scroll')
        }

        // 檢測$index函數
        Scroll.prototype.isRightIndex = function ($index) {
            if($index < FullPage.$min) {
                return FullPage.$min;
            }

            if ($index > FullPage.$max) {
                return FullPage.$max;
            }


            // 記錄$index
            FullPage.$index  = $index
            return $index
        }

        // 回到頂部
        Scroll.prototype.scrollTop = function (scroll, flag) {
            if (flag === 0) {
                FullPage.$index = 0
                scroll.start(0, $height)
                console.log($('[animate="top"]'))
                $('[animate="top"]').queue('scrollTop',function (next) {
                    $(this).animate({'opacity': 0}, {
                        complete: function () {
                            $(this).css({'visibility': 'hidden'})
                        }
                    })
                    next()
                }).dequeue('scrollTop')
            } else {
                $('[animate="top"]').queue('scrollTop',function (next) {
                    $(this).css({'visibility': 'visible'}).animate({'opacity': 1})
                    next()
                }).dequeue('scrollTop')
            }

        }

        // 輪播點圖動畫效果
        Scroll.prototype.dotChange = function ($index) {
            $('.swiper_dot').removeClass('active')
           $($('.swiper_dot')[$index]).addClass('active')
        }

        let scroll = new Scroll()
        $('[animate="top"]').on('click', function () {
            scroll.scrollTop(scroll, 0)
        })
        
       // 綁定輪播事件
       this.init = function () {

           $('.swiper_show').mousewheel(function (event, delta) {
               let $index  = FullPage.$index
            if(FullPage.$tottle) {
                FullPage.$tottle = false
                if(delta< 0) {
                    // 向下翻滾
                    $index++
                    $index = scroll.isRightIndex($index)
                    scroll.start($index, $height)
                    scroll.scrollTop(scroll, $index)
                    scroll.dotChange($index)
                }

                if(delta > 0) {
                    // 向上翻滾
                    $index--
                    $index = scroll.isRightIndex($index)
                    scroll.start($index, $height)
                    scroll.scrollTop(scroll, $index)
                    scroll.dotChange($index)
                }

            }
           })
       }

       this.init()
    }



    // 對象全局變量
    FullPage.$index = 0
    FullPage.$tottle = true
    FullPage.$max = 6
    FullPage.$min = 0



    new FullPage()
    
</script>
</html>
~~~
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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