var today = new Date();
var wday = today.getDay();
var hour = today.getHours();
if (wday == 0) { var weekday = "星期日" }
else if (wday == 1) { var weekday = "星期一" }
else if (wday == 2) { var weekday = "星期二" }
else if (wday == 3) { var weekday = "星期三" }
else if (wday == 4) { var weekday = "星期四" }
else if (wday == 5) { var weekday = "星期五" }
else if (wday == 6) { var weekday = "星期六" }
if (hour <= 3) { var say = "注意身体" }
else if (hour <= 7) { var say = "凌晨好" }
else if (hour <= 11) { var say = "上午好" }
else if (hour <= 13) { var say = "中午好" }
else if (hour <= 17) { var say = "下午好" }
else if (hour <= 22) { var say = "晚上好" }
else if (hour <= 24) { var say = "夜深了" }
document.write("&nbsp;&nbsp; ", say, "&nbsp;&nbsp;今天是：", today.getFullYear(), "年", today.getMonth() + 1, "月", today.getDate(), "日&nbsp;&nbsp;", weekday);