红宝石 |日期 gregorian()函数

Date#gregorian()是一个 Date 类方法，它返回公历日期格式。

Syntax: Date.gregorian()

Parameter: Date values

Return: gregorian date format

示例 #1：

# Ruby code for Date.gregorian() 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"
  
  
# gregorian form 
puts "Date a gregorian form : #{a.gregorian}\n\n"
puts "Date b gregorian form : #{b.gregorian}\n\n"
puts "Date c gregorian form : #{c.gregorian}\n\n"

输出 ：

Date a : 2019-01-01

Date b : 2001-04-04

Date c : 2019-01-12



Date a gregorian form : 2019-01-01

Date b gregorian form : 2001-04-04

Date c gregorian form : 2019-01-12

示例 #2：

# Ruby code for Date.gregorian() 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"
   
   
# gregorian form 
puts "Date a gregorian form : #{a.gregorian}\n\n"
puts "Date b gregorian form : #{b.gregorian}\n\n"
puts "Date c gregorian form : #{c.gregorian}\n\n"

输出 ：

Date a : 2019-01-01

Date b : 2019-12-03

Date c : 2019-02-02



Date a gregorian form : 2019-01-01

Date b gregorian form : 2019-12-03

Date c gregorian form : 2019-02-02