我正在为我的朋友们创建一个网站。我正在使用html + css + javascript。有一个部分，我将有照片，然后在他们旁边的描述。但是当你点击图片时，它会在中心爆炸，并遮挡屏幕的其余部分。因此，我希望有一个说100张图片的列表，所有这些都需要能够全屏爆炸。我没有使用javascript进步，但我正在努力学习。如果有人能帮我解决这个问题，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">×</span>
<img class="modal-content" id="img01">
<div id="caption"></div>
</div>
<script>
</script>
</html>
答案 0 :(得分：0)
首先从method元素中删除id并放置img类。使用myImg获取具有document.getElementsByClassName('myImg')类的所有元素。
img返回匹配节点数组。因此，您必须运行for循环直到document.getElementsByClassName()以显示每document.getElementsByClassName('myImg').length次点击的弹出窗口。
myImg// 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%;
}
}