嗨,大家好,任何人都可以告诉一些想法将事件侦听器添加到以下按钮的循环中,如果单击第一个按钮,我想隐藏第1段,如果单击第二个按钮,则第2 para。如何做到这一点,我正在尝试做,但不能得到任何想法来做到。请帮助我!谢谢。
<body>
<button class="btn">click1</button>
<button class="btn">click2</button>
<button class="btn">click3</button>
<p class="para">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Similique, veritatis.</p>
<p class="para">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, tempore?</p>
<p class="para">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Commodi, nisi!</p>
<script>
(function() {
var btn = document.getElementsByClassName("btn");
var r = document.getElementsByClassName("para");
for (var i = 0; i < btn.length; i++) {
for (var e = 0; e < r.length; r++) {
btn[i].addEventListener("click", function() {
r[e].style.display = "none";
})
}
}
})();
</script>
</body>
您可以将ID分配给其他div
,然后将ID值用作p
标签的类属性。在不分配唯一标识符的情况下,将很难知道要隐藏哪个p
标签。
window.onload = function() { onLoad(); }
function onLoad() {
var btn = document.querySelectorAll(".btn");
for (var i = 0; i < btn.length; i++) {
btn[i].addEventListener("click", function () {
document.querySelector("." + this.id).style.display = "none";
})
}
}
<button class="btn" id="click1">click1</button>
<button class="btn" id="click2">click2</button>
<button class="btn" id="click3">click3</button>
<p class="click1">Click 1 - Lorem ipsum dolor sit amet, consectetur adipisicing elit. Similique, veritatis.</p>
<p class="click2">Click 2 - Lorem ipsum dolor sit amet, consectetur adipisicing elit. Optio, tempore?</p>
<p class="click3">Click 3 - Lorem ipsum dolor sit amet, consectetur adipisicing elit. Commodi, nisi!</p>