效果展示:
注意要用.ico的图片文件
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="icon" href="1.ico" type="image/x-icon">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>你好</title>
</head>
<body>
</body>
</html>