Javascript 如何基于图像缩略图使用onclick-on-anchor标记打开(全屏)图像
我想根据图像缩略图在弹出div上显示图像。 单击一次图像/缩略图/apple.jpg将打开一个弹出的图像/actual/apple.jpg HTMLJavascript 如何基于图像缩略图使用onclick-on-anchor标记打开(全屏)图像,javascript,html,jquery,Javascript,Html,Jquery,我想根据图像缩略图在弹出div上显示图像。 单击一次图像/缩略图/apple.jpg将打开一个弹出的图像/actual/apple.jpg HTML <div class="row"> <div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom"> <a oncli
<div class="row">
<div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom">
<a onclick="showImg()" class="d-block mb-4 h-100">
<img class="img-fluid img-hov" src="images/thumbnails/pencil.jpg" alt="1">
</a>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom">
<a onclick="showImg()" class="d-block mb-4 h-100">
<img class="img-fluid img-hov" src="images/thumbnails/pencil2.jpg" alt="1">
</a>
</div>
//another option is using onclick in img tag if this makes easy.
<div name="filter-img" class="col-lg-3 col-md-4 col-6 web zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/web.jpg" alt="">
</div>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 sketch zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/sketch.jpg" alt="1">
</div>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 sketch zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/sketch2.jpg" alt="">
</div>
</div>
</div>
<div id="imgbox" class="d-none">
<div id="mainimg">
</div>
</div>
//另一个选择是使用onclick-in-img标记,如果这样做很容易的话。
假设我想展示这张照片里面的图像
HTML
<div class="row">
<div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom">
<a onclick="showImg()" class="d-block mb-4 h-100">
<img class="img-fluid img-hov" src="images/thumbnails/pencil.jpg" alt="1">
</a>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom">
<a onclick="showImg()" class="d-block mb-4 h-100">
<img class="img-fluid img-hov" src="images/thumbnails/pencil2.jpg" alt="1">
</a>
</div>
//another option is using onclick in img tag if this makes easy.
<div name="filter-img" class="col-lg-3 col-md-4 col-6 web zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/web.jpg" alt="">
</div>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 sketch zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/sketch.jpg" alt="1">
</div>
</div>
<div name="filter-img" class="col-lg-3 col-md-4 col-6 sketch zoom">
<div class="d-block mb-4 h-100">
<img onclick="showImg()" class="img-fluid img-hov" src="images/thumbnails/sketch2.jpg" alt="">
</div>
</div>
</div>
<div id="imgbox" class="d-none">
<div id="mainimg">
</div>
</div>
我的想法是获得点击链接的src,然后用react on src替换缩略图,并添加到HTML中
JS
function showImg() {
var imgbox = document.getElementById("imgbox");
imgbox.classList.toggle("d-none");
document.getElementById("mainimg").innerHTML = "<img class='img-fluid' src='I dont know'>";
}
函数showImg(){
var imgbox=document.getElementById(“imgbox”);
imgbox.classList.toggle(“d-none”);
document.getElementById(“mainimg”).innerHTML=“”;
}
请帮助我使用showImg()函数使其正常工作。您必须定义“实际图像url”。在这种情况下,可以在函数中定义此值
<div name="filter-img" class="col-lg-3 col-md-4 col-6 pencil zoom">
<a onclick="showImg('images/actual/pencil.jpg')" class="d-block mb-4 h-100">
<img class="img-fluid img-hov" src="images/thumbnails/pencil.jpg" alt="1">
</a>
</div>
您可以访问函数中的值,如下所示:
function showImg(imageUrl) {
document.getElementById("mainimg").innerHTML = "<img class='img-fluid' src='"+imageUrl+"'>";
}
函数showImg(imageUrl){
document.getElementById(“mainimg”).innerHTML=“”;
}
谢谢你的回答,这比我想象的要好得多,而且很有效,但我只是想知道是否可以获得单击的div或anchor的src。当然可以。您可以访问src属性。将“this”参数添加到onclick事件中的“showImg”函数中。如果您的完整映像名称不同,则可以定义数据属性并访问它。