javascript - 有什么方法可以在一个页面上放很多不同的幻灯片，而无需为每个幻灯片复制一堆重命名的函数？

Question

嘿，我有一个包含一堆模态图像的页面，当单击其中任何一个时，它会打开相应的图像幻灯片。但是模式使用 js 进行幻灯片放映，所以有什么方法可以编辑我的函数，这样每张图片都会打开一个不同的幻灯片放映相册，而不只是一遍又一遍地复制相同的函数并更改变量名称，因为这似乎是一种不好的方法.

我有一个 JSfiddle 来显示一张图片的样子，以及我所有的代码。

https://jsfiddle.net/nhk3o0m1/26/

HTML:

<h2 style="text-align:center">Modal Albums</h2>

  <div class="row">

      <img src="https://www.yosemitehikes.com/images/wallpaper/yosemitehikes.com-bridalveil-winter-1200x800.jpg" style="max-width:100%" onclick="openModal();currentSlide(1)" class="hover-shadow cursor">

  </div>

  <div id="myModal" class="modal">
    <span class="close cursor" onclick="closeModal()">&times;</span>
    <div class="modal-content">

      <div class="mySlides">
        <div class="numbertext">1 / 4</div>
        <img src="http://chasingseals.com/wp-content/uploads/2014/02/greenlandBanner2000x800.jpg" class="img">
      </div>

      <div class="mySlides">
        <div class="numbertext">2 / 4</div>
        <img src="http://www.catholicevangelism.org/wp-content/uploads/2013/06/1200x800.gif" class="img">
      </div>

      <div class="mySlides">
        <div class="numbertext">3 / 4</div>
        <img src="http://www.a1carpet-to.com/wp-content/uploads/2015/08/600x400.png" class="img">
      </div>

      <div class="mySlides">
        <div class="numbertext">4 / 4</div>
        <img src="https://support.kickofflabs.com/wp-content/uploads/2016/06/800x1200.png" class="img">
      </div>

      <a class="prev" onclick="plusSlides(-1)">&#10094;</a>
      <a class="next" onclick="plusSlides(1)">&#10095;</a>
    </div>
  </div>

CSS:

   body {
   font-family: Verdana, sans-serif;
   margin: 0;
 }

 * {
   box-sizing: border-box;
 }
 .img {
   max-width:100%;
   max-height: 100%;
   width: auto;
   heigth: auto;
   object-fit: scale-down;
 }
 .row > .column {
   padding: 0 8px;
 }

 .row:after {
   content: "";
   display: table;
   clear: both;
 }

 .column {
   float: left;
   width: 25%;
 }
 /* The Modal (background) */

 .modal {
   display: none;
   position: fixed;
   z-index: 1;
   padding-top: 100px;
   left: 0;
   top: 0;
   width: 100%;
   height: 100%;
   overflow: auto;
   background: rgba(0, 0, 0, 0.9);
 }
 /* Modal Content */

 .modal-content {
   position: relative;
   background-color: rgba(0, 0, 0, 0.9);
   margin: auto;
   padding: 0;
   width: 90%;
   max-width: 1200px;
 }
 /* The Close Button */

 .close {
   color: white;
   position: absolute;
   top: 10px;
   right: 25px;
   font-size: 35px;
   font-weight: bold;
 }

 .close:hover,
 .close:focus {
   color: #999;
   text-decoration: none;
   cursor: pointer;
 }

 .mySlides {
   display: none;
 }

 .cursor {
   cursor: pointer
 }
 /* Next & previous buttons */

 .prev,
 .next {
   cursor: pointer;
   position: absolute;
   top: 50%;
   width: auto;
   padding: 16px;
   margin-top: -50px;
   color: white;
   font-weight: bold;
   font-size: 20px;
   transition: 0.6s ease;
   border-radius: 0 3px 3px 0;
   user-select: none;
   -webkit-user-select: none;
 }
 /* Position the "next button" to the right */

 .next {
   right: 0;
   border-radius: 3px 0 0 3px;
 }
 /* On hover, add a black background color with a little bit see-through */

 .prev:hover,
 .next:hover {
   background-color: rgba(0, 0, 0, 0.8);
   text-decoration: none;
 }
 /* Number text (1/3 etc) */

 .numbertext {
   color: #f2f2f2;
   font-size: 12px;
   padding: 8px 12px;
   position: absolute;
   top: 0;
 }

 img {
   margin-bottom: -4px;
 }

 t img.hover-shadow {
   transition: all .2s ease-in-out;
 }

 .hover-shadow:hover {
  -webkit-transition: all .2s ease-in;
  -webkit-transform: scale(1.1);
  -ms-transition: all .2s ease-in;
  -ms-transform:scale(1.1);
  -moz-transition:all .2s ease-in;
  -moz-transform: scale(1.1);
  transition: all .2s ease-in;
  transform: scale(1.1);
}
 .hover-shadow{
   -webkit-transition: all .2s ease-in;
  -webkit-transform: scale(1);
  -ms-transition: all .2s ease-in;
  -ms-transform:scale(1);
  -moz-transition:all .2s ease-in;
  -moz-transform: scale(1);
  transition: all .2s ease-in;
  transform: scale(1);
 }

 .modal-content {
   -webkit-animation-name: zoom;
   -webkit-animation-duration: 0.6s;
   animation-name: zoom;
   animation-duration: 0.6s;
 }

 @-webkit-keyframes zoom {
   from {
     -webkit-transform: scale(0)
   }
   to {
     -webkit-transform: scale(1)
   }
 }

 @keyframes zoom {
   from {
     transform: scale(0)
   }
   to {
     transform: scale(1)
   }
 }


.mySlides img {
   height:100%;
   margin:0 auto;
   margin-bottom:50px;
}

.mySlides {
    text-align:center;
    height:80vh;
}

JS:

 function openModal() {
      document.getElementById('myModal').style.display = "block";
    }

    function closeModal() {
      document.getElementById('myModal').style.display = "none";
    }

    var slideIndex = 1;
    showSlides(slideIndex);

    function plusSlides(n) {
      showSlides(slideIndex += n);
    }

    function currentSlide(n) {
      showSlides(slideIndex = n);
    }

    function showSlides(n) {
      var i;
      var slides = document.getElementsByClassName("mySlides");
      var dots = document.getElementsByClassName("demo");
      var captionText = document.getElementById("caption");
      if (n > slides.length) {slideIndex = 1}
        if (n < 1) {slideIndex = slides.length}
          for (i = 0; i < slides.length; i++) {
            slides[i].style.display = "none";
          }
          for (i = 0; i < dots.length; i++) {
            dots[i].className = dots[i].className.replace(" active", "");
          }
          slides[slideIndex-1].style.display = "block";
          dots[slideIndex-1].className += " active";
          captionText.innerHTML = dots[slideIndex-1].alt;
        }

Answer 1

我会这样处理

1. 所有幻灯片的 ID。
2. 在 HTML mySlides div 中调用函数时输入图像地址和幻灯片的 ID
3. `myFunc( http://image , mySlidesID);
4. 然后制作<image>标签 SRC="image I Called"

对不起，如果我解释得有点笨拙。

function aFunction(imageURL1,imageURL2,imageURL3,imageURL4, imageID1,imageID2,imageID3, imageID4 ) {

  getElementByID(imageID1) 
  make the src of the image src = imageURL1

}

有关 JavaScript 的更多帮助，我会使用 W3Schools https://www.w3schools.com/js/default.asp