获取从今天（包括今天）开始往前7天或者往后7天的周几和日期

usage:

/**
           
             * @method getWeekDate
             * @param {type} dateTime - 现在的时间戳 timestamp now
             * @param {number} type - 往前7天还是往后7天,取值有2种：0或者1,0代表从今天往前推6天，1代表0代表从今天往后推6天
             *                         7 days ago or 7 days later, there are 2 kinds of values: 0 or 1,0 represents 6 days forward from today, 1 represents 0 represents 6 days from today                     
             * @param {string} locale - 英文en,中文cn  en represent english cn represent chinese
             * @return {Array} week - week数组  
             * 
             * 
             * eg:
     *
     * let now = new Date();
     let weekAndDate = getWeekDate(now,1);
     console.log(weekAndDate);

     //打印结果：[
     //   { dateStr: '2021-06-21', weekStr: '周一', date_short: '21' },
     //   { dateStr: '2021-06-22', weekStr: '周二', date_short: '22' },
     //   { dateStr: '2021-06-23', weekStr: '周三', date_short: '23' },
     //   { dateStr: '2021-06-24', weekStr: '周四', date_short: '24' },
     //   { dateStr: '2021-06-25', weekStr: '周五', date_short: '25' },
     //   { dateStr: '2021-06-26', weekStr: '周六', date_short: '26' },
     //   { dateStr: '2021-06-27', weekStr: '周日', date_short: '27' }
     // ]

     let now = new Date();
     let weekAndDate = getWeekDate(now,0);
     console.log(weekAndDate);

     //打印结果：[
     //   { dateStr: '2021-06-21', weekStr: '周一', date_short: '21' },
     //   { dateStr: '2021-06-22', weekStr: '周二', date_short: '22' },
     //   { dateStr: '2021-06-23', weekStr: '周三', date_short: '23' },
     //   { dateStr: '2021-06-24', weekStr: '周四', date_short: '24' },
     //   { dateStr: '2021-06-25', weekStr: '周五', date_short: '25' },
     //   { dateStr: '2021-06-26', weekStr: '周六', date_short: '26' },
     //   { dateStr: '2021-06-27', weekStr: '周日', date_short: '27' }
     // ]
     *
     ]
             * @description:
             * @author: nykee
             * @date: 2021/6/21
             */
import getWeekDate from 'get-week-date';
     let now = new Date();
          let weekAndDate = getWeekDate(now,1);
          console.log(weekAndDate);
          
           //打印结果：[
               //   { dateStr: '2021-06-21', weekStr: '周一', date_short: '21' },
               //   { dateStr: '2021-06-22', weekStr: '周二', date_short: '22' },
               //   { dateStr: '2021-06-23', weekStr: '周三', date_short: '23' },
               //   { dateStr: '2021-06-24', weekStr: '周四', date_short: '24' },
               //   { dateStr: '2021-06-25', weekStr: '周五', date_short: '25' },
               //   { dateStr: '2021-06-26', weekStr: '周六', date_short: '26' },
               //   { dateStr: '2021-06-27', weekStr: '周日', date_short: '27' }
               // ]
          
               let now = new Date();
               let weekAndDate = getWeekDate(now,0);
               console.log(weekAndDate);
          
               //打印结果：[
               //   { dateStr: '2021-06-21', weekStr: '周一', date_short: '21' },
               //   { dateStr: '2021-06-22', weekStr: '周二', date_short: '22' },
               //   { dateStr: '2021-06-23', weekStr: '周三', date_short: '23' },
               //   { dateStr: '2021-06-24', weekStr: '周四', date_short: '24' },
               //   { dateStr: '2021-06-25', weekStr: '周五', date_short: '25' },
               //   { dateStr: '2021-06-26', weekStr: '周六', date_short: '26' },
               //   { dateStr: '2021-06-27', weekStr: '周日', date_short: '27' }
               // ]