js获取当前日期所在的周一到周日的日期 以及星期几

如图：

$(function () {var now = new Date("-1-1");var nowTime = now.getTime() ;var day = now.getDay() || 7;var oneDayLong = 24*60*60*1000 ;var MondayTime = nowTime - (day-1)*oneDayLong ;var SundayTime = nowTime + (7-day)*oneDayLong ;var monday = new Date(MondayTime);for (let i = 0; i<7;i++){var tmpDate = new Date(MondayTime);tmpDate=tmpDate.setDate(tmpDate.getDate()+i);tmpDate=new Date(tmpDate);console.log(tmpDate);var mondayDateStr = (tmpDate.getMonth()+1)+'月';mondayDateStr += tmpDate.getDate()+'日';let days = tmpDate.getDay();switch (days) {case 1:days = '星期一';break;case 2:days = '星期二';break;case 3:days = '星期三';break;case 4:days = '星期四';break;case 5:days = '星期五';break;case 6:days = '星期六';break;case 0:days = '星期日';break;}mondayDateStr += days;console.log(mondayDateStr) ;}var sunday = new Date(SundayTime);console.log(monday) ;console.log(sunday) ;});