红宝石 |时间rfc2822函数

Time#rfc2822() : rfc2822()是一个 Time 类方法，它返回代表 RFC 2822 定义的日期时间的字符串
格式：

day-of-week, DD month-name CCYY hh:mm:ss zone

Syntax: Time.rfc2822()

Parameter: Time values

Return: the string which represents the time as date-time defined by RFC 2822

示例 #1：

# Ruby code for Time.rfc2822() 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"
  
  
# rfc2822 form 
puts "Time a rfc2822 form : #{a.rfc2822}\n\n"
puts "Time b rfc2822 form : #{b.rfc2822}\n\n"
puts "Time c rfc2822 form : #{c.rfc2822}\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 rfc2822 form : 3600

Time b rfc2822 form : 7200

Time c rfc2822 form : 3600

示例 #2：

# Ruby code for Time.rfc2822() 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"
  
  
# rfc2822 form 
puts "Time a rfc2822 form : #{a.rfc2822}\n\n"
puts "Time b rfc2822 form : #{b.rfc2822}\n\n"
puts "Time c rfc2822 form : #{c.rfc2822}\n\n"

输出 ：

Time a : 2019-08-27 04:05:51 +0200

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

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



Time a rfc2822 form : Tue, 27 Aug 2019 04:05:51 +0200

Time b rfc2822 form : Fri, 10 Oct 1000 00:00:00 +0053

Time c rfc2822 form : Tue, 01 Dec 2020 00:00:00 +0100