红宝石 |时间rfc822函数

Time#rfc822() : rfc822()是一个 Time 类方法，它返回代表 RFC 822 定义的日期时间的字符串

Syntax: Time.rfc822()

Parameter: Time values

Return: the string which represents the time as date-time defined by RFC 822

示例 #1：

# Ruby code for Time.rfc822() method
  
# loading library
require 'time'
  
# declaring time 
a = Time.new(2019)
  
# declaring time
b = Time.new(2019, 10)
  
# declaring time
c = Time.new(2019, 12, 31)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# rfc822 form 
puts "Time a rfc822 form : #{a.rfc822}\n\n"
puts "Time b rfc822 form : #{b.rfc822}\n\n"
puts "Time c rfc822 form : #{c.rfc822}\n\n"

输出 ：

Time a : 2019-01-01 00:00:00 +0100

Time b : 2019-10-01 00:00:00 +0200

Time c : 2019-12-31 00:00:00 +0100



Time a rfc822 form : Tue, 01 Jan 2019 00:00:00 +0100

Time b rfc822 form : Tue, 01 Oct 2019 00:00:00 +0200

Time c rfc822 form : Tue, 31 Dec 2019 00:00:00 +0100

示例 #2：

# Ruby code for Time.rfc822() method
  
# loading library
require 'time'
  
# declaring time 
a = Time.now
  
# declaring time
b = Time.new(1000, 10, 10)
  
# declaring time
c = Time.new(2020, 12)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# rfc822 form 
puts "Time a rfc822 form : #{a.rfc822}\n\n"
puts "Time b rfc822 form : #{b.rfc822}\n\n"
puts "Time c rfc822 form : #{c.rfc822}\n\n"

输出 ：

Time a : 2019-08-27 04:07:37 +0200

Time b : 1000-10-10 00:00:00 +0053

Time c : 2020-12-01 00:00:00 +0100



Time a rfc822 form : Tue, 27 Aug 2019 04:07:37 +0200

Time b rfc822 form : Fri, 10 Oct 1000 00:00:00 +0053

Time c rfc822 form : Tue, 01 Dec 2020 00:00:00 +0100