用原生js写瀑布流布局，简单易懂_使用js写一个简单布局-优快云博客

本文链接：https://blog.youkuaiyun.com/little_shallot/article/details/112345999
写了一个简单的瀑布流布局
效果是这样的
在这里插入图片描述
下面是代码
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>原生瀑布流</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }
        body{padding-top: 30px;}
        .box {
            position: relative;
            width: 750px;

            margin: 0 auto;

            background: pink;
        }

        .box .time {
            position: absolute;
            background: #ff00ff;
            width: 45%;
        }
        .box .time img {
            width: 100%;

        }
        //奇数偶数所在的位置统一下
        .box .time:nth-child(odd) {
            left: 3.5%;
        }
        .box .time:nth-child(even) {
            left: 51.5%;
        }
    </style>
</head>

<body>
    <div class="box">
        <div class="time" style="top:0px">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works2.jpg" alt="">
            <div>
                <h4>标题</h4>
                <h3>标题</h3>
            </div>
        </div>
        <div class="time ">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg" alt="">
            <h4>标题</h4>
            <h3>标题</h3>
        </div>

        <div class="time">
            <div>
                <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works6.jpg" alt="">
                <h4>标题</h4>
                <h3>标题</h3>
            </div>
        </div>
        <div class="time ">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg" alt="">
            <h4>标题</h4>
            <h3>标题</h3>
        </div>

        <div class="time ">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg" alt="">
            <h4>标题</h4>
            <h3>标题</h3>
        </div>

        <div class="time ">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg" alt="">
            <h4>标题</h4>
            <h3>标题</h3>
        </div>
        <div class="time">
            <div>
                <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works6.jpg" alt="">
                <h4>标题</h4>
                <h3>标题</h3>
            </div>
        </div>
        <div class="time">
            <img src="https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works2.jpg" alt="">
            <div>
                <h4>标题</h4>
                <h3>标题</h3>
            </div>
        </div>
    </div>
    <script>
        window.onload = function () {
            function potion() {
            
                var item = document.getElementsByClassName('time')

                for (let index = 0; index < item.length; index++) {
                    console.log(item[index].offsetHeight)
                    // 默认开始两条不计算
                    if (index > 1) {
                        // 判断上面的元素高度加距离顶部的距离 外加15px的边距
                        let top = item[index - 2].offsetTop + (item[index - 2].offsetHeight) + 15

                        item[index].setAttribute('style', 'top:' + top + 'px;')
                    } else {
                        item[index].setAttribute('style', 'top:0px;')
                    }
                }
            }
            // 默认有数据
            potion()


                // 数据参数
            var imgarr = ['https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works2.jpg', 'https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works6.jpg', 'https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg','https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works2.jpg', 'https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works6.jpg', 'https://www.17sucai.com/preview/1/2017-08-21/pull/finishing/img/works4.jpg']
            window.onscroll = function () {
                if (getScrollTop() + getClientHeight() === getScrollHeight()) {
                    console.log('上拉加载了')
                    // 上拉触底加载模拟请求成功反回数据
                    var item = document.getElementsByClassName('time')
                    var box = document.getElementsByClassName('box')[0]
                    for (let index = 0; index < imgarr.length; index++) {
                          //给要插入的元素设置内容
                        var insertDiv = document.createElement("div"); 
                        insertDiv.className = "time";
                        var insertDiv1 = document.createElement("div");
                        var img = document.createElement('img');
                        var lineP1 = document.createElement('h3');
                        var lineP2 = document.createElement('h4');
                        img.src = imgarr[index]
                        lineP1.innerText = '标题'
                        lineP2.innerText = '标题'
                        insertDiv.appendChild(insertDiv1)
                        insertDiv1.appendChild(img)
                        insertDiv1.appendChild(lineP1)
                        insertDiv1.appendChild(lineP2)
                        box.appendChild(insertDiv)
                    }

                    // 执行适配位置
                    potion()
                }
            }
            // 上拉触底
            function getScrollTop() {
                let scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
                return scrollTop
            }
            function getClientHeight() {
                let clientHeight = document.documentElement.clientHeight || document.body.clientHeight;
                return clientHeight;
            }
            function getScrollHeight() {
                let scrollHeight = document.documentElement.scrollHeight || document.body.scrollHeight
                return scrollHeight
            }
        }
    </script>
</body>

</html>