Ruby Date cwyear()用法及代碼示例

Date＃cwyear()是Date類方法，該方法返回基於日曆周的年份。

用法：Date.cwyear()

參數：日期值

返回：基於日曆周的年份。

示例1:

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

輸出：

Date a : 2019-01-01

Date b : 2001-04-04

Date c : 2019-01-12



Date a cwyear form : 2019

Date b cwyear form : 2001

Date c cwyear form : 2019

示例2:

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

輸出：

Date a : 2019-01-01

Date b : 2019-12-03

Date c : 2019-02-02



Date a cwyear form : 2019

Date b cwyear form : 2019

Date c cwyear form : 2019

相關用法

注：本文由純淨天空篩選整理自Kirti_Mangal大神的英文原創作品 Ruby | Date cwyear() function。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。