列出两个日期之间的天数数组

I would like to list an array of days between two dates. I can list an array of months with the code below. How might I change this to show every day between two dates?

我想在两个日期之间列出一组日期。我可以用下面的代码列出一个月的数组。我怎样才能在两次约会之间每天都显示出来呢?

require 'date'

date_from  = Date.parse('2011-05-14')
date_to    = Date.parse('2011-05-30')
date_range = date_from..date_to

date_months = date_range.map {|d| Date.new(d.year, d.month, 1) }.uniq
date_months.map {|d| d.strftime "%d/%m/%Y" }

puts date_months

1 个解决方案

#1

I don't know which day you meant, thus I have shown all the ways.

我不知道你指的是哪一天，所以我已经说明了所有的方法。

#wday is the day of week (0-6, Sunday is zero).

 (date_from..date_to).map(&:wday)

#mday is the day of the month (1-31).

(date_from..date_to).map(&:mday)

#yday is the day of the year (1-366).

(date_from..date_to).map(&:yday)

OP's actual need was not much clear to me. After few comments between us, I came to know from OP's comment, the below answer OP is looking for -

OP的实际需求我不是很清楚。经过我们之间的几番评论，我从OP的评论中了解到，下面的答案正在寻找。

(date_from..date_to).map(&:to_s)