网站中的js代码欢迎语，早上好，下午好……

<script>

               today = new Date();

               var day; var date; var hello; var wel;

               hour = new Date().getHours()

               if (hour < 6) hello = '凌晨好'

               else if (hour < 9) hello = '早上好'

               else if (hour < 12) hello = '上午好'

               else if (hour < 14) hello = '中午好'

               else if (hour < 17) hello = '下午好'

               else if (hour < 19) hello = '傍晚好'

               else if (hour < 22) hello = '晚上好'

               else { hello = '夜里好' }

               if (today.getDay() == 0) day = '星期日'

               else if (today.getDay() == 1) day = '星期一'

               else if (today.getDay() == 2) day = '星期二'

               else if (today.getDay() == 3) day = '星期三'

               else if (today.getDay() == 4) day = '星期四'

               else if (today.getDay() == 5) day = '星期五'

               else if (today.getDay() == 6) day = '星期六'

               date = (today.getFullYear()) + '年' + (today.getMonth() + 1) + '月' + today.getDate() + '日';

               document.write(hello);

     </script>       

<script>

               document.write(date + ' ' + day + ' ');

</script>