在Ruby中仅获取当前月份之间的前一周

require 'date'
require 'time'

current_date = Date.today
current_time = Time.now

prev_month = current_date.prev_month
prev_month_str = prev_month.strftime("%Y-%m")

current_month_first_day = current_date.beginning_of_month
current_month_first_day_str = current_month_first_day.strftime("%Y-%m-%d")

prev_day = current_date.prev_day
prev_day_str = prev_day.strftime("%Y-%m-%d")

prev_week_start = current_date.prev_week
prev_week_end = current_date.prev_week + 6
prev_week_start_str = prev_week_start.strftime("%Y-%m-%d")
prev_week_end_str = prev_week_end.strftime("%Y-%m-%d")