我想写一个有两个弹出模式的页面。我有代码，它可以根据我的要求工作，但只在每个按钮的第二次点击时。其中大部分是从https://www.w3schools.com/howto/howto_css_modals.asp.
我已经把这个页面放到网上了，http://test.davelevy.info/modals/index.html.
这是CSS，
.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: 30%; /* Full width */ height: 100%; /* Full height */
overflow: auto; /* Enable scroll if needed */
background-color: rgb(0,0,0); /* Fallback color */
background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
}
/* Modal Content */
.modal-content { background-color: #fefefe;
margin: 5px; font-size: 80%; padding: 5px; width: 80%; border: 1px solid #888; }
/* The Close Button */
.close { color: #aaaaaa; float: right; font-size: 28px; font-weight: bold; }
.close:hover, .close:focus { color: #000; text-decoration: none; cursor: pointer; }
.modal-content2 {
display: none; /* Hidden by default */ background-color: #fefefe;
margin: auto; padding: 20px; border: 1px solid #888; width: 80%;
}
.close2 { color: #aaaaaa; float: right; font-size: 28px; font-weight: bold; }
.close2:hover, .close2:focus { color: #000; text-decoration: none;cursor: pointer; }
这是HTML
<h1>This is a two modal test</h1>
<p>The 2nd Button, strangly</p>
<!-- Trigger/Open The Modal -->
<button id="myBtn2" onclick="showmodal('myModal2','myBtn2','close2')">More Latin</button>
<!-- The Modal -->
<div id="myModal2" class="modal"><!-- Modal content -->
<div class="modal-content" style="width: 80%;">
<span class="close2">×</span>
<p style="font-size: 120%;">A 2nd example modal</p>
<p style="font-size: 102%;">Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem.</p>
</div>
</div>
<hr>
<p>And no 1</p>
<!-- Trigger/Open The Modal -->
<button id="myBtn" onclick="showmodal('myModal','myBtn','close')">Click Me</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p style="font-size: 120%;">An example modal</p>
<p style="font-size: 102%;">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>
</div>
</div>
这是javascript，
<script>
// Get the modal
function showmodal (id,bid,clid) {
var modal = document.getElementById(id);
// Get the button that opens the modal
var btn = document.getElementById(bid);
// Get the <span> element that closes the modal
var span = document.getElementsByClassName(clid)[0];
// When the user clicks on the button, open the modal
btn.onclick = function() { modal.style.display = "block"; }
// When the user clicks on <span> (x), close the modal
span.onclick = function() { modal.style.display = "none"; }
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
}
</script>
如何在第一次点击时实现这一点？
一个扩展目标是如何重用.close css规则？
我在网站上寻找过答案，但那些看起来接近问题定义的答案都是针对代码的；我还没有找到一个能帮我的。
嘿，我简化了它一点，改为使用事件侦听器，并从HTML中删除了onclick。
function showmodal() {
var modal = document.querySelector("#myModal");
var btn = document.querySelector("#myBtn");
var span = document.querySelector(".close");
btn.addEventListener("click", function () {
modal.style.display = "block";
});
//span.onclick = function () { modal.style.display = "none"; }
// When the user clicks anywhere outside of the modal, close it
window.addEventListener("click", function (event) {
//console.log(event.target);
if (event.target == modal) {
modal.style.display = "none";
}
});
}
showmodal();
<p>And no 1</p>
<!-- Trigger/Open The Modal -->
<button id="myBtn"> Click Me</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p style="font-size: 120%;">An example modal</p>
<p style="font-size: 102%;">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco
laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit
esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa
qui officia deserunt mollit anim id est laborum.</p>
</div>
</div>