红宝石 |日期时间秒（）函数

DateTime#second()是一个 DateTime 类方法，它返回 DateTime 对象的第二个值。

Syntax: DateTime.second()

Parameter: DateTime values

Return: the second value of the DateTime object.

示例 #1：

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

输出 ：

DateTime second form : 9

DateTime second form : 0

DateTime second form : 9

示例 #2：

# Ruby code for DateTime.second() method
  
# loading library
require 'date'
  
# declaring DateTime value
date_a = DateTime.new(2019, 8, 10, 5)
  
# declaring DateTime value
date_b = DateTime.parse('10 Aug 2018 04:10:06+04:30')
  
# declaring DateTime value
date_c = DateTime.new(2019, 8, 10, 4, 10, 9, '+03:00')
  
  
#  second method
puts "DateTime second form : #{date_a.second}\n\n"
  
puts "DateTime second form : #{date_b.second}\n\n"
  
puts "DateTime second form : #{date_c.second}\n\n"

输出 ：

DateTime second form : 0

DateTime second form : 6

DateTime second form : 9