function newMode() {

 var date = new Date();

 var year = date.getFullYear();

 var month = date.getMonth() + 1;

 var day = date.getDate();

 var week = date.getDay();

 var weekDay;

 var dayArr = [

   "星期日",

   "星期一",

   "星期二",

   "星期三",

   "星期四",

   "星期五",

   "星期六",

 ];

 switch (week) {

   case 0:

     weekDay = dayArr[0];

     break;

   case 1:

     weekDay = dayArr[1];

     break;

   case 2:

     weekDay = dayArr[2];

     break;

   case 3:

     weekDay = dayArr[3];

     break;

   case 4:

     weekDay = dayArr[4];

     break;

   case 5:

     weekDay = dayArr[5];

     break;

   case 6:

     weekDay = dayArr[6];

     break;

 }

 var h = date.getHours();

 var min = date.getMinutes();

 var s = date.getSeconds();

 console.log(

   `今天是${year}年${month}月${day}日,星期${weekDay}，${h}:${min}:${s}`

 );

}

newMode();