红宝石 |日期 amjd()函数
Date#amjd() : amjd()是一个 Date 类方法,它返回天文修改的儒略日数。
Syntax: Date.amjd()
Parameter: Date values
Return: the dastronomical modified Julian day number.
示例 #1:
# Ruby code for Date.amjd() 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"
# amjd form
puts "Date a amjd form : #{a.amjd}\n\n"
puts "Date b amjd form : #{b.amjd}\n\n"
puts "Date c amjd form : #{c.amjd}\n\n"
输出 :
Date a : 2019-01-01
Date b : 2001-04-04
Date c : 2019-01-12
Date a amjd form : 58484/1
Date b amjd form : 52003/1
Date c amjd form : 58495/1
示例 #2:
# Ruby code for Date.amjd() 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"
# amjd form
puts "Date a amjd form : #{a.amjd}\n\n"
puts "Date b amjd form : #{b.amjd}\n\n"
puts "Date c amjd form : #{c.amjd}\n\n"
输出 :
Date a : 2019-01-01
Date b : 2019-12-03
Date c : 2019-02-02
Date a amjd form : 58484/1
Date b amjd form : 58820/1
Date c amjd form : 58516/1