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来源：2-32 编程练习

KangarooL

2021-03-27 19:51:29

相关代码：

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>赋值运算</title>
</head>

<body>
    <script>
        var a = 5;
        var b = 7;

        // 补充代码
        var c;
        c = a;
        a = b;
        b = c;
        document.write('a=' + a + ',' + 'b=' + b);
    </script>
</body>

</html>