使用Js实现瀑布流效果

D6E8F8BE-C95A-BB76-BC52-06C6C105834D.png

源码:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        .box {
            width: 70px;
            float: left;
            margin-left: 4px;
            border-top: 1px solid #000;
        }

        ul,
        ol,
        li {
            list-style-type: none;
        }

        li {
            width: 70px;
            display: block;
            text-align: center;
        }
     
    </style>
</head>

<body>
    <ul class="box"></ul>
    <ul class="box"></ul>
    <ul class="box"></ul>
    <ul class="box"></ul>

    <button onclick="reloadPage()">刷新页面</button>
</body>

</html>
<script>
    var boxs = document.querySelectorAll(".box");
    //创建最小值
    var min = 0;
    //创建颜色数组
    var colour = ["red", "yellow", "orange", "blue", "purple", "green","#cdee","#feda","ccc","#eda","#639","#33f","#f38","#ca0"]
    for (j = 1; j <= 50; j++) {
        var lis = document.createElement("li");//创建带数字的li
        lis.innerHTML = j;
        lis.style.height = Math.random() * 40 + 30 + "px";//获取随机高度,最小高度为30px
        lis.style.backgroundColor = colour[parseInt(Math.random() * colour.length-1)];//获取随机颜色
        for (var i = 0; i < boxs.length; i++) {
            console.log(boxs[i].clientHeight);
            // offsetHeight获得元素高度的 数字
            if (boxs[i].offsetHeight < boxs[min].offsetHeight) {
                min = i;//获取高度最小数组元素的序号
            }
        }
        boxs[min].appendChild(lis)//把li添加到最短ol里

    }

    function reloadPage() {
        location.reload();//刷新
    }

</script>
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