作为一名前端工程师,手写轮播图应该是最基本掌握的技能,以下是我自己原生js写的轮播,欢迎指点批评:
首先css代码
a{text-decoration:none;color:#3DBBF5;}
*{
margin: 0;
padding: 0;
}
.wrapper{
width: 400px;
height: 300px;
margin: 100px auto;
}
#lunbo{
position: relative;
overflow: hidden;
}
#list{
position: relative;
white-space: nowrap; // 这块用行元素模拟,所以才用该属性,块元素可修改这块
}
#list span{
display: inline-block;
width: 400px;
height: 300px;
text-align: center;
line-height: 300px;
font-weight: bold;
font-size: 100px;
color: #fff;
}
#buttons{
position: absolute;
bottom: 0;
text-align: center;
width: 100%;
height: 40px;
line-height: 40px;
}
#buttons span{
display: inline-block;
width: 15px;
height: 5px;
background: #fff;
margin: 0 10px;
cursor: pointer;
transition: all .5s;
}
#buttons span.on{
height: 20px;
}
.arrow{
position: absolute;
top: 50%;
transform: translateY(-50%);
font-size: 80px;
font-weight: bold;
color: #fff;
opacity: .3;
transition: all .5s;
}
.wrapper:hover .arrow{
opacity: 1;
}
#prev{
left: 10px;
}
#next{
right: 10px;
}
然后HTML代码
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<
>
最后js代码
window.onload=function () {
var lunBo = document.getElementById("lunbo");
var list = document.getElementById("list");
var btn = document.getElementById("buttons").getElementsByTagName('span');
var prev = document.getElementById("prev");
var next = document.getElementById('next');
var interval = 3000;
var timer;
var index = 1;
var animated = false;
for (var i=0;i0 && parseInt(list.style.left)newLeft)) { //通过条件判断到它是否还要继续进行动画
list.style.left = parseInt(list.style.left) + speed +'px';
setTimeout(go,interval)
} else{
animated = false; //动画状态结束
list.style.left = newLeft + 'px'; //现在的位移
if (parseInt(list.style.left)<-2000) { // 辅助假图
list.style.left = -400 + 'px';
} else if( parseInt(list.style.left)>-400){
list.style.left = -2000 + 'px';
}
}
}
go();
}
function play () {
timer = setTimeout(function () {
next.onclick();
play();
},interval)
}
play();
function stop () {
clearTimeout(timer);
}
lunBo.onmouseover=stop;
lunBo.onmouseout=play;
}
以上是所有代码,欢迎指点交流!
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持考高分网。



