Laksanakan kesan gelongsor imej berdasarkan kemahiran javascript_javascript

Hari ini saya melihat slaid gambar yang ditulis oleh orang lain Nampak keren apabila saya membaca kod sumber, ia kelihatan sukar, jadi saya menirunya dan menulisnya sama seperti halaman web asal. Walau bagaimanapun, kod js saya sendiri mempunyai logik yang mudah dan perlu dikemas kini.
ps: Saya menulis karusel dua hari lalu, tetapi keserasian tidak baik Apabila saya menulis halaman web ini hari ini, saya mengikuti idea yang sama dan ia berjalan dengan baik pada Google Chrome tidak dapat dilaksanakan kerana panel pembalut digunakan untuk kedudukan mutlak, tukar terjemahan terjemah ke kiri. Selepas perubahan, setiap penyemak imbas berjalan dengan baik.

Kod khusus adalah seperti berikut

kod html (tiada ulasan)

<div class="container"> 
    <h1>Parallax Slider</h1> 
    <div class="wrap"> 
      <div class="bg-img"> 
        <div id="bg_1" class="bg bg-1" style="left: 0px;"></div> 
        <div id="bg_2" class="bg bg-2" style="left: 0px;"></div> 
        <div id="bg_3" class="bg bg-3" style="left: 0px;"></div> 
      </div> 
      <div id="wrap_panel" class="wrap-panel" style="left: 0px;"> 
        <div class="panel panel-1"> 
          <img id="img_1" src="images/1.jpg"> 
        </div> 
        <div class="panel panel-2"> 
          <img src="images/2.jpg"> 
        </div> 
        <div class="panel panel-3"> 
          <img src="images/3.jpg"> 
        </div> 
        <div class="panel panel-4"> 
          <img src="images/4.jpg"> 
        </div> 
        <div class="panel panel-5"> 
          <img src="images/5.jpg"> 
        </div> 
        <div class="panel panel-6"> 
          <img src="images/6.jpg"> 
        </div> 
      </div> 
      <div class="navigation-button"> 
        <span id="perv_btn" class="perv-button"></span> 
        <span id="next_btn" class="next-button"></span> 
      </div> 
      <div id="show_small" class="show-small"> 
        <ul> 
          <li><img src="images/thumbs/1.jpg"></li> 
          <li><img src="images/thumbs/2.jpg"></li> 
          <li><img src="images/thumbs/3.jpg"></li> 
          <li><img src="images/thumbs/4.jpg"></li> 
          <li><img src="images/thumbs/5.jpg"></li> 
          <li><img src="images/thumbs/6.jpg"></li> 
        </ul> 
      </div> 
    </div> 
  </div> 

kod css (semak sendiri):

* { margin: 0; padding: 0; } 
  html, body, .container { width: 100%; height: 100%; font-family: 'Microsoft Yahei'; } 
  .container { background-color: #222; overflow-x: hidden; } 
  .container h1 { font-size: 50px; color: #ccc; text-align: center; font-weight: bolder; height: 120px; line-height: 120px; } 
  .wrap { position: relative; width: 600%; height: 400px; border-top: 10px solid #333; border-bottom: 10px solid #333; margin-top: 20px; } 
  .bg { position: absolute; width: 100%; height: 100%; left: 0; top: 0; -webkit-transition: all 1s;-moz-transition: all 1s;-ms-transition: all 1s;-o-transition: all 1s;transition: all 1s; } 
  .bg-1 { background: url(images/bg1.png); } 
  .bg-2 { background: url(images/bg2.png); } 
  .bg-3 { background: url(images/bg3.png); } 
  .wrap-panel { position: absolute; width: 100%; height: 100%; -webkit-transition: all 1s; -moz-transition: all 1s; -ms-transition: all 1s; -o-transition: all 1s; transition: all 1s; } 
  .panel { width: 16.66%; height: 100%; float: left; } 
  .panel img { display: block; margin: 0 auto; margin-top: 35px; border-radius: 10px; border: 10px solid rgba(143, 143, 143, 0.6); } 
  .navigation-button span:hover { opacity: 0.8 } 
  .perv-button, .next-button { position: absolute; width: 30px; height: 60px; background-color: #344133; border-radius: 10px; cursor: pointer; opacity: 0.4; } 
  .perv-button { background: #000 url(images/prev.png) center center no-repeat; } 
  .next-button { background: #000 url(images/next.png) center center no-repeat; } 
  .show-small { position: absolute; width: 680px; bottom: 20px; } 
  .show-small ul { list-style: none; } 
  .show-small ul li { float: left; margin: 0 10px; border: 5px solid #fff; opacity: 0.7; cursor: pointer;-webkit-transition: all .3s; -moz-transition: all .3s; -ms-transition: all .3s;-o-transition: all .3s; transition: all .3s; } 
  .show-small ul li:hover { margin-top: -15px; } 

kod js (demo kecil):

window.onload = function() { 
      // 得到元素 
      var getDOM = function (id){ 
        return typeof id==="string"?document.getElementById(id):id; 
      } 
 
      // 得到对象 
      var img = getDOM('img_1'); 
      var prev = getDOM("perv_btn"); 
      var next = getDOM("next_btn"); 
      var wrap_panel = getDOM('wrap_panel'); 
      var bg_1 = getDOM("bg_1"); 
      var bg_2 = getDOM("bg_2"); 
      var bg_3 = getDOM("bg_3"); 
      var show_small = getDOM("show_small"); 
      var list = show_small.getElementsByTagName("li"); 
      var wwidth; 
 
       // 为元素绑定事件 
      var addEvent = function(id,event,fn) { 
       var el = getDOM(id) || document; 
       if(el.addEventListener){ 
        el.addEventListener(event,fn,false); 
       }else if(el.attachEvent){ 
        el.attachEvent('on' + event,fn); 
       } 
      } 
      function init() { 
         
        // 对按钮进行定位 
        // 向前按钮的左边距离=图片的左距离+边框 
        prev.style.left = img.offsetLeft + 10 + 'px'; 
        // 向前按钮的上边距离=图片的上距离+图片高度的一半-按钮高度的一半 
        prev.style.top = img.offsetTop + img.clientHeight/2 - prev.clientHeight/2 + 'px'; 
        next.style.left = img.offsetLeft + img.clientWidth + 10 - next.clientWidth + 'px'; 
        next.style.top =prev.style.top; 
 
        // 对小图片的容器进行定位 
        wwidth = document.documentElement.clientWidth || document.body.clientWidth; 
        show_small.style.left = (wwidth - show_small.clientWidth)/2 + 'px'; 
      } 
 
      // 小图片的处理 
      function small_img() { 
        // 对图片进行旋转处理 
        for (var i = 0;i< list.length; i++) { 
          // 旋转方向 
          var direction = Math.pow(-1,parseInt(Math.random()*10)); 
          list[i].style = "transform:rotate(" + (Math.random()*20*direction) + "deg)"; 
        } 
        list[0].style.opacity = 1; 
      } 
 
      function only_one(el,num) { 
        for (var i = 0; i < el.length; i++) { 
          el[i].style.opacity = 0.7; 
        } 
        // console.log(num); 
        el[num].style.opacity = 1; 
      } 
 
      // 浏览器缩放时 
      window.onresize = function() { 
        init(); 
      } 
     
      // 执行函数 
      init(); 
      small_img(); 
      addEvent(prev,'click',function() { 
        // 改变wrap-panel的left 
        var oldPos = parseInt(wrap_panel.style.left); 
         
        if(oldPos == 0) {   
 
          // 背景平移 图片容器平移 
          bg_1.style.left=bg_2.style.left=bg_3.style.left=wrap_panel.style.left = -wwidth*(list.length-1) +'px'; 
 
          // 更改对应小图片透明度 
          only_one(list,list.length-1); 
        } else { 
 
          // 背景平移 图片容器平移 
          wrap_panel.style.left = (oldPos + wwidth) +'px'; 
          bg_1.style.left= (oldPos + wwidth - parseInt(-(oldPos/wwidth + 1))*100) +'px'; 
          bg_2.style.left= (oldPos + wwidth - parseInt(-(oldPos/wwidth + 1))*300) +'px'; 
          bg_3.style.left= (oldPos + wwidth - parseInt(-(oldPos/wwidth + 1))*500) +'px'; 
 
          // 更改对应小图片透明度 
          only_one(list,parseInt(-(oldPos/wwidth + 1))); 
        } 
      }); 
      addEvent(next,'click',function() { 
        // 改变wrap-panel的left 
        var oldPos = parseInt(wrap_panel.style.left);         
 
        if(oldPos == -wwidth*(list.length-1)) {    
 
          // 背景平移 图片容器平移 
          bg_1.style.left=bg_2.style.left=bg_3.style.left=wrap_panel.style.left = '0px'; 
 
          // 更改对应小图片透明度 
          only_one(list,0); 
        } else { 
          // 背景平移 图片容器平移 
          wrap_panel.style.left = (oldPos - wwidth) +'px'; 
          bg_1.style.left= (oldPos - wwidth + parseInt(-(oldPos/wwidth + 1))*100) +'px'; 
          bg_2.style.left= (oldPos - wwidth + parseInt(-(oldPos/wwidth + 1))*300) +'px'; 
          bg_3.style.left= (oldPos - wwidth + parseInt(-(oldPos/wwidth + 1))*500) +'px'; 
 
          // 更改对应小图片透明度 
          only_one(list,parseInt(-(oldPos/wwidth - 1))); 
        } 
      }); 
    }

Di atas adalah keseluruhan kandungan artikel ini saya harap ia akan membantu semua orang dalam mempelajari pengaturcaraan javascript.