JavaScript201708/FREE/WEEK1/Reference/4-Multiplication.html at master · lixiangqi-github/JavaScript201708 · GitHub

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<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>99乘法表</title>

    <link rel="stylesheet" href="css/reset.min.css"/>
    <style>
        html, body {
            width: 100%;
            height: 100%;
            background: url("img/9999.jpg") no-repeat;
            background-size: cover;
        }

        #box {
            padding: 10px;
        }

        #box li {
            margin-top: 10px;
            height: 35px;
        }

        #box li span {
            float: left;
            margin-right: 10px;
            width: 100px;
            line-height: 35px;
            text-align: center;
            background: rgba(0, 0, 0, 0.1);
            opacity: 0;
        }
    </style>
</head>
<body>
<ul id="box">

</ul>


<script src="js/jquery-1.11.3.min.js"></script>
<script>
    //->创建99乘法表
    var $box = $('#box');
    var str = '';
    for (var i = 1; i <= 9; i++) {
        str += '<li>';
        for (var j = 1; j <= i; j++) {
            str += '<span>' + j + ' * ' + i + ' = ' + (i * j) + '</span>';
        }
        str += '</li>';
    }
    $box.html(str);

    //->出现时候的动画
    var $list = $box.find('span');
    $list.each(function (index, item) {
        window.setTimeout(function () {
            $(item).stop().animate({opacity: 1}, 500);
        }, index * 30);
    });
</script>
</body>
</html>