📜  红宝石 |日期>>方法

📅  最后修改于: 2022-05-13 01:54:52.682000             🧑  作者: Mango

红宝石 |日期>>方法

Date#>>()是一个 Date 类方法,它返回指向 self 后几个月的“n”(数值参数)的日期对象。

示例 #1:

# Ruby code for Date.>>() 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"
  
  
# >> form 
puts "Date a >> form : #{a >> Rational(3, 2)}\n\n"
puts "Date b >> form : #{b >> Rational(10, 2)}\n\n"
puts "Date c >> form : #{c >> Rational(10, 4)}\n\n"

输出 :

Date a : 2019-01-01

Date b : 2001-04-04

Date c : 2019-01-12



Date a >> form : 2019-02-01

Date b >> form : 2001-09-04

Date c >> form : 2019-03-12

示例 #2:

# Ruby code for Date.>>() 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"
  
  
# >> form 
puts "Date a >> form : #{a >> Rational(3, 2)}\n\n"
puts "Date b >> form : #{b >> Rational(10, 2)}\n\n"
puts "Date c >> form : #{c >> Rational(10, 4)}\n\n"

输出 :

Date a : 2019-01-01

Date b : 2019-12-03

Date c : 2019-02-02



Date a >> form : 2019-02-01

Date b >> form : 2020-05-03

Date c >> form : 2019-04-02