js获取当日时间。00:00:00。 23:59:59

        let date1 = new Date(new Date(new Date().toLocaleDateString()).getTime());
        let day = this.timeFormat(date1)
        //今天 23:59:59
        let date2 = new Date(new Date(new Date().toLocaleDateString()).getTime() + 24 * 60 * 60 * 1000 - 1);
        var day_end = this.timeFormat(date2)
        //一周前 
        let date3 = new Date(new Date(new Date().toLocaleDateString()).getTime() - 3600 * 1000 * 24 * 7);
        let dat_week = this.timeFormat(date3)
        //昨天 2023-7-3
        let date4 = time.getFullYear() + '-' + (time.getMonth() + 1) + '-' + (time.getDate() - 1)
        //当天
        let date5 = time.getFullYear() + '-' + (time.getMonth() + 1) + '-' + time.getDate()
        //一个月前
        let date6 = time.getFullYear() + '-' + time.getMonth() + '-' + time.getDate()

格式化时间

//格式化时间
    timeFormat(time) {
      return time.getFullYear() + '-' + (time.getMonth() + 1) + '-' + time.getDate() + ' ' + time.getHours() + ':' + time.getMinutes() + ':' + time.getSeconds()
    }