我正在开发一个小型网站,想通过“上一页”和“下一页”按钮来浏览我的div块。我已经成功实现了从一个div切换到另一个div,但是第三个div被忽略了,我不知道缺少什么。
以下是我的片段代码:
var nextbtn = document.getElementById("next-btn");
var previousbtn = document.getElementById("previous-btn");
var div1 = document.getElementById("div1");
var div2 = document.getElementById("div2");
var div3 = document.getElementById("div3");
var i = 0;
nextbtn.addEventListener("click", function () {
i++;
if (i == 1) {
div1.style.display = "block";
div2.style.display = "none";
div3.style.display = "none";
} else if (i == 2) {
div1.style.display = "none";
div2.style.display = "block";
div3.style.display = "none";
} else if (i == 3) {
div1.style.display = "none";
div2.style.display = "none";
div3.style.display = "block";
} else {
console.log("you have reached the limit");
}
});
body {
display: flex;
flex-wrap: wrap;
}
.div1,
.div2,
.div3 {
width: 200px;
height: 200px;
}
.div1 {
display: block;
}
.div2,
.div3 {
display: none;
}
<div class="div1" id="div1" style="background-color: crimson">
<button id="previous-btn">previous</button>
<button id="next-btn">next</button>
</div>
<div class="div2" id="div2" style="background-color: rgb(20, 220, 87)">
<button id="previous-btn">previous</button>
<button id="next-btn">next</button>
</div>
<div class="div3" id="div3" style="background-color: rgb(113, 20, 220)">
<button id="previous-btn">previous</button>
<button id="next-btn">next</button>
</div>
<div class="buttons-controller">
<button id="first-div">1</button>
<button id="second-div">2</button>
<button id="third-div">3</button>
</div>
编辑:目前我只在“下一个”按钮上工作,所以之前的按钮还没有启用。
div1
中的按钮被选中。使用类选择器选择按钮,例如document.querySelector('.next-button')
,然后你就可以了。 - aside