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javascript - 如何使列表中的所有图像弹出而不是仅弹出第一个？

我正在为我的朋友生意写一个网站。我正在使用html + css + javascript。有一个部分，我将要有图片，然后在它们旁边进行描述。但是，当您单击图片时，它会在中间放大并遮盖屏幕的其余部分。因此，潜在地，我希望拥有一张可以说100张图片的列表，并且所有这些图片都需要能够在全屏模式下显示出来。我没有使用javascript进行高级操作，但是我正在尝试学习。如果有人可以帮助我解决这个问题，我今天可以学到一些东西。



// Get the modal
var modal = document.getElementById('myModal');

// Get the image and insert it inside the modal - use its "alt" text as a caption
var img = document.getElementById('myImg');
var modalImg = document.getElementById("img01");
var captionText = document.getElementById("caption");
img.onclick = function() {
  modal.style.display = "block";
  modalImg.src = this.src;
  captionText.innerHTML = this.alt;
}

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
  modal.style.display = "none";
}

#myImg {
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s;
}

#myImg:hover {
  opacity: 0.7;
}

/* The Modal (background) */

.modal {
  display: none;
  /* Hidden by default */
  position: fixed;
  /* Stay in place */
  z-index: 1;
  /* Sit on top */
  padding-top: 100px;
  /* Location of the box */
  left: 0;
  top: 0;
  width: 100%;
  /* Full width */
  height: 100%;
  /* Full height */
  overflow: auto;
  /* Enable scroll if needed */
  background-color: rgb(0, 0, 0);
  /* Fallback color */
  background-color: rgba(0, 0, 0, 0.9);
  /* Black w/ opacity */
}

/* Modal Content (image) */

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
}

/* Caption of Modal Image */

#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}

/* Add Animation */

.modal-content,
#caption {
  -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)
  }
}

/* The Close Button */

.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
}

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

/* 100% Image Width on Smaller Screens */

@media only screen and (max-width: 700px) {
  .modal-content {
    width: 100%;
  }
}

<html>

<head>
  <style type="css">

  </style>
</head>

<div class="menuscroll">
  <table>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
      <td>
        <p style="padding-left:2cm;">this is some text.</p>
      </td>
    </tr>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img id="myImg" src="chenaCan_img/test/1-1.jpg" alt="Chena Cannabis" width="300" height="200"></td>
    </tr>
  </table>
</div>

<!-- The Modal -->
<div id="myModal" class="modal">
  <span class="close">&times;</span>
  <img class="modal-content" id="img01">
  <div id="caption"></div>
</div>


<script>
</script>

</html>





chenaCan_img/test/1-1.jpg

最佳答案

首先，从img元素中删除ID，然后放置myImg类。使用document.getElementsByClassName('myImg')获取具有img类的所有元素。

document.getElementsByClassName()返回匹配节点的数组。因此，您必须运行for循环，直到document.getElementsByClassName('myImg').length才能在每次单击myImg时显示弹出窗口。



// Get the modal
var modal = document.getElementById('myModal');

// Get the image and insert it inside the modal - use its "alt" text as a caption
var img = document.getElementsByClassName('myImg');
console.log(img.length)
var modalImg = document.getElementById("img01");
var captionText = document.getElementById("caption");

function myPopup() {
  modal.style.display = "block";
  modalImg.src = this.src;
  captionText.innerHTML = this.alt;
  //alert('hey');
}

for (var i = 0; i < img.length; i++) {
  img[i].onclick = myPopup;
}

// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];

// When the user clicks on <span> (x), close the modal
span.onclick = function() {
  modal.style.display = "none";
}

.myImg {
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s;
}

.myImg:hover {
  opacity: 0.7;
}


/* The Modal (background) */

.modal {
  display: none;
  /* Hidden by default */
  position: fixed;
  /* Stay in place */
  z-index: 1;
  /* Sit on top */
  padding-top: 100px;
  /* Location of the box */
  left: 0;
  top: 0;
  width: 100%;
  /* Full width */
  height: 100%;
  /* Full height */
  overflow: auto;
  /* Enable scroll if needed */
  background-color: rgb(0, 0, 0);
  /* Fallback color */
  background-color: rgba(0, 0, 0, 0.9);
  /* Black w/ opacity */
}


/* Modal Content (image) */

.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
}


/* Caption of Modal Image */

#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: #ccc;
  padding: 10px 0;
  height: 150px;
}


/* Add Animation */

.modal-content,
#caption {
  -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)
  }
}


/* The Close Button */

.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: #f1f1f1;
  font-size: 40px;
  font-weight: bold;
  transition: 0.3s;
}

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


/* 100% Image Width on Smaller Screens */

@media only screen and (max-width: 700px) {
  .modal-content {
    width: 100%;
  }
}

<div class="menuscroll">
  <table>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
    <tr>
      <td><img class="myImg" id="" src="https://i.stack.imgur.com/9VWIy.jpg" alt="Six" width="300" height="200"></td>
    </tr>
  </table>
</div>

<!-- The Modal -->
<div id="myModal" class="modal">
  <span class="close">&times;</span>
  <img class="modal-content" id="img01">
  <div id="caption"></div>
</div>

09-16 16:05
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