瀑布流大家都见过吧，展示一下
先排个html

 <div id="wrapper">
        <div class="box">
            <div class="photo">
                <img src="./images/0.jpg" alt="">
            </div>
        </div>
        <div class="box">
            <div class="photo">
                <img src="./images/1.jpg" alt="">
            </div>
        </div>
        <div class="box">
            <div class="photo">
                <img src="./images/2.jpg" alt="">
            </div>
        </div>
        <div class="box">
            <div class="photo">
                <img src="./images/3.jpg" alt="">
            </div>
        </div>

给他设置样式

#wrapper{
    width: 1200px;
    height: auto;
    background-color: pink;
    margin: 0 auto;
    position: relative;
    .box{
        float: left;
        padding: 0 5px;
        .photo{
            box-shadow: 0px 0px 3px 3px gray;
            >img{
                width: 160px;
                display: block;
            }
        }
    }
}

用js实现，下拉加载

window.addEventListener("load", getHtml)
function getHtml() {
    var data = [
        { img: "75.jpg" },
        { img: "74.jpg" },
        { img: "97.jpg" },
        { img: "96.jpg" },
        { img: "95.jpg" },
        { img: "94.jpg" },
        { img: "93.jpg" },
        { img: "92.jpg" },
        { img: "91.jpg" },
        { img: "90.jpg" },
        { img: "89.jpg" },
        { img: "88.jpg" },
        { img: "87.jpg" },
        { img: "86.jpg" },
        { img: "85.jpg" },
        { img: "84.jpg" },
        { img: "83.jpg" },
        { img: "82.jpg" },
        { img: "81.jpg" },
        { img: "80.jpg" },
        { img: "79.jpg" },
        { img: "78.jpg" },
        ]
    var wrapper = document.querySelector("#wrapper");
    //滚动条事件
    window.onscroll = function () {
        //如果总高大于最后一张图的高
        if (isok()) {
            //循环数据
            for (var i in data) {
                //写入
                wrapper.innerHTML += `<div class="box">
            <div class="photo">
                 <img src="./images/${data[i].img}" alt="">
             </div>
            </div>`
            }
            //图片排序
            install();
        }
    }
    install()
    //封装图片排列顺序
    function install() {
        var wrapper = document.querySelector("#wrapper");
        //html的宽
        var html_w = document.documentElement.clientWidth || document.body.clientWidth;
        var boxs = document.querySelectorAll(".box");
        //其中一个图片的宽
        var boxs_w = boxs[0].offsetWidth;
        //一排可以放几个图
        var cols = Math.floor(html_w / boxs_w);
        //重新给wrapper设置宽
        wrapper.style.width = boxs_w * cols + "px";
        var arr = [];
        //循环每一张图片
        for (var i = 0; i < boxs.length; i++) {
            //下标小于一排能放下的个数
            if (i < cols) {
                //把这几个图片的高放入空数组
                arr.push(boxs[i].offsetHeight);
            } else {
                //声明一个数组中最小值
                var minH = Math.min.apply(Math, arr);
                //声明一个下标为最小值的小标
                var ind = arr.indexOf(minH);
                //给剩余图片定位
                boxs[i].style.cssText = `position:absolute;left:${ind * boxs_w}px;top:${minH}px;`
                //更新定位后图片的高度
                arr[ind] += boxs[i].offsetHeight;
            }
        }
    }
    //图片是否加载
    function isok() {
        var boxs = document.querySelectorAll(".box");
        //html的高
        var html_h = document.documentElement.clientHeight || document.body.clientHeight;
        //总高度  html的高加滚动的高
        var z_top = html_h + (document.documentElement.scrollTop || document.body.scrollTop);
        //最后一张图片的高度
        var last_tu = boxs[boxs.length - 1].offsetHeight + boxs[boxs.length - 1].clientHeight/2;
        //返回结果  如果总高度大于最后一张图片的高度就为true
        return z_top > last_tu ? true : false;
    }
}