<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Symbol.prototype.description</title>
</head>
<body>
<script>
//创建 Symbol
let s = Symbol('尚硅谷');
//显示内容
console.log(s.description);
</script>
</body>
</html>