js-for循环制作乘法表

喜欢ヅ旅行 2022-11-05 12:49 128阅读 0赞

## 效果图 ##

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NTQzMzQ1OTk_size_16_color_FFFFFF_t_70][]

完整代码如下，添加了一些样式：

<!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;
            }
            
            h2 {
                width: 200px;
                height: 50px;
                margin: 0px auto;
                margin-top: 100px;
            }
            
            #box {
                width: 848px;
                height: 300px;
                border: 2px solid springgreen;
                margin: 10px auto;
                padding: 20px;
            }
            
            span {
                width: 80px;
                border: 1px solid salmon;
                padding: 4px;
                display: inline-block;
            }
        </style>
    </head>
    
    <body>
        <h2>九九乘法表</h2>
        <div id="box">
    
        </div>
    </body>
    <script>
        var str = "";
        var box = document.getElementById("box");
        for (var i = 1; i < 10; i++) {
            for (var j = 1; j <= i; j++) {
                var s = j * i;
                str += ` 
                <span>${i} x ${j} = ${s}</span>
              `
            }
            str += "</br>";
        }
        box.innerHTML += str;
    </script>
    
    </html>

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2E3NTQzMzQ1OTk_size_16_color_FFFFFF_t_70]: /images/20221023/1c4ce8003ed64740af4b28c364069552.png