将以下代码加入HTML 的<body></body>之间：
<script language="javaScript"> <!-- now = new Date(),hour = now.getHours() if(hour < 6){document.write("凌晨好!")} else if (hour < 9){document.write("早上好!")} else if (hour < 12){document.write("上午好!")} else if (hour < 14){document.write("中午好!")} else if (hour < 17){document.write("下午好!")} else if (hour < 19){document.write("傍晚好!")} else if (hour < 22){document.write("晚上好!")} else {document.write("夜里好!")} // --> </script>