老师，为什么会报错？？？

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老师，为什么会报错？？？

来源：2-2 编程练习

粉墨登场

2021-04-09 14:34:55

问题描述：

老师你好，使用在线的编辑器，为什么会报错：person已经声明？？？

相关截图：

相关代码：

<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8">
    <title>模版字符串</title>
</head>

<body>
    <div class="div1"></div>


    <script type="text/javascript">
        let person = {
            name: "xiaoming",
            age: 18
        };

        let elem = document.querySelector('.div1');


        // elem.innerHTML = "He is <b>" + person.name + " </b> " + "and we wish to know his" + person.age + ".That is all<br>";


        elem.innerHTML = `He is <b> ${ person.name } </b> and we wish to know his ${ person.age } .That is all<br>`;
    </script>
</body>

</html>