screen示例
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title></title>
</head>
<body>
<script>
console.log(screen.height); // 示例结果：900
console.log(screen.availHeight); // 示例结果：870
console.log(screen.colorDepth); // 示例结果：24
console.log(screen.pixelDepth); // 示例结果：24
</script>
</body>
</html>
