📜  红宝石 |日期时间序数()函数

📅  最后修改于: 2022-05-13 01:55:45.365000             🧑  作者: Mango

红宝石 |日期时间序数()函数

DateTime#ordinal() : ordinal()是一个 DateTime 类方法,它返回一个表示给定序数日期的 DateTime 对象。

示例 #1:

# Ruby code for DateTime.ordinal() method
  
# loading library
require 'date'
  
# declaring DateTime value
date_a = DateTime.ordinal(2019, 8, 10, 4, 10, 9)
  
# declaring DateTime value
date_b = DateTime.ordinal(2019, 8, 10.5)
  
# declaring DateTime value
date_c = DateTime.ordinal(2019, 8, 10, 4, 10, 9, Rational(4, 24))
  
  
#  ordinal method
puts "DateTime ordinal form : #{date_a}\n\n"
  
puts "DateTime ordinal form : #{date_b}\n\n"
  
puts "DateTime ordinal form : #{date_c}\n\n"

输出 :

DateTime ordinal form : 2019-01-08T10:04:10+00:00

DateTime ordinal form : 2019-01-08T10:30:00+00:00

DateTime ordinal form : 2019-01-08T10:04:10+00:00

示例 #2:

# Ruby code for DateTime.ordinal() method
  
# loading library
require 'date'
  
# declaring DateTime value
date_a = DateTime.ordinal(2019, 8, 10, 5)
  
# declaring DateTime value
date_b = DateTime.parse('10 Aug 2018 04:10:06+04:30')
  
  
  
  
#  ordinal method
puts "DateTime ordinal form : #{date_a}\n\n"
  
puts "DateTime ordinal form : #{date_b}\n\n"

输出 :

DateTime ordinal form : 2019-01-08T10:05:00+00:00

DateTime ordinal form : 2018-08-10T04:10:06+04:30