极客教程Ruby DateTime to_datetime()函数
DateTime#to_datetime() : to_datetime()是DateTime类的一个方法，用于返回自己的DateTime对象。
语法。DateTime.to_datetime()
参数。DateTime值
返回：自我DateTime对象。
例子 #1 :
# Ruby code for DateTime.to_datetime() 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))
# to_datetime method
puts "DateTime to_datetime form : #{date_a.to_datetime}\n\n"
puts "DateTime to_datetime form : #{date_b.to_datetime}\n\n"
puts "DateTime to_datetime form : #{date_c.to_datetime}\n\n"
输出:
DateTime to_datetime form : 2019-08-10T04:10:09+00:00
DateTime to_datetime form : 2019-08-10T12:00:00+00:00
DateTime to_datetime form : 2019-08-10T04:10:09+04:00
例子 #2 :
# Ruby code for DateTime.to_datetime() 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')
# to_datetime method
puts "DateTime to_datetime form : #{date_a.to_datetime}\n\n"
puts "DateTime to_datetime form : #{date_b.to_datetime}\n\n"
puts "DateTime to_datetime form : #{date_c.to_datetime}\n\n"
输出:
DateTime to_datetime form : 2019-08-10T05:00:00+00:00
DateTime to_datetime form : 2018-08-10T04:10:06+04:30
DateTime to_datetime form : 2019-08-10T04:10:09+03:00