老师检查作业

来源：3-7 编程练习

3颗猫饼干

2021-12-09 19:26:07

相关代码：

<!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>3-7</title>
</head>
<body>
    <script>
        const m1 = new Map(
            [
                ['a',111],
                ['b',222]
            ]
        );
        // console.log(m1);
        const m2 = new Map(m1);
        // console.log(m2);
        m2.set('c',333);
        console.log(m2);
    </script>
</body>
</html>

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