Ruby Date mday()方法
Date#mday()是一个Date类方法,用于返回1到31的月份的日期。
语法。Date.mday()
参数。日期值
返回:从1到31的一个月中的一天
例子 #1 :
# Ruby code for Date.mday() method
# loading date
require 'date'
# declaring Date
a = Date.new(2019, 1, 1)
# declaring Date
b = Date.jd(2452004)
# declaring Date
c = Date.ordinal(2019, 12)
# Date
puts "Date a : #{a}\n\n"
puts "Date b : #{b}\n\n"
puts "Date c : #{c}\n\n\n\n"
# mday form
puts "Date a mday form : #{a.mday}\n\n"
puts "Date b mday form : #{b.mday}\n\n"
puts "Date c mday form : #{c.mday}\n\n"
输出:
Date a : 2019-01-01
Date b : 2001-04-04
Date c : 2019-01-12
Date a mday form : 1
Date b mday form : 4
Date c mday form : 12
例子 #2 :
# Ruby code for Date.mday() method
# loading date
require 'date'
# declaring Date
a = Date.parse('2019-01-01')
# declaring Date
b = Date.strptime('03-12-2019', '%d-%m-%Y')
# declaring Date
c = Date.commercial(2019, 5, 6)
# Date
puts "Date a : #{a}\n\n"
puts "Date b : #{b}\n\n"
puts "Date c : #{c}\n\n\n\n"
# mday form
puts "Date a mday form : #{a.mday}\n\n"
puts "Date b mday form : #{b.mday}\n\n"
puts "Date c mday form : #{c.mday}\n\n"
输出:
Date a : 2019-01-01
Date b : 2019-12-03
Date c : 2019-02-02
Date a mday form : 1
Date b mday form : 3
Date c mday form : 2