var now = new Date(),hour = now.getHours();
if(hour < 6){return "凌晨好嘀粱！"}
else if (hour < 9){return "早上好！";}
else if (hour < 12){return "上午好呼盆！";}
else if (hour < 14){return "中午好！";}
else if (hour < 17){return "下午好氧急！";}
else if (hour < 19){return "傍晚好尸曼！";}
else if (hour < 22){return "晚上好！";}
else {return "夜里好岩遗！";}
