Ruby DateTime to_date()函数
DateTime#to_date() : to_date() 是一个DateTime类方法,它返回表示自己的Date对象。
语法。DateTime.to_date()
参数。DateTime值
返回:表示自身的Date对象。
例子 #1 :
# Ruby code for DateTime.to_date() 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_date method
puts "DateTime to_date form : #{date_a.to_date}\n\n"
puts "DateTime to_date form : #{date_b.to_date}\n\n"
puts "DateTime to_date form : #{date_c.to_date}\n\n"
输出:
DateTime to_date form : 2019-08-10
DateTime to_date form : 2019-08-10
DateTime to_date form : 2019-08-10
例子 #2 :
# Ruby code for DateTime.to_date() 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_date method
puts "DateTime to_date form : #{date_a.to_date}\n\n"
puts "DateTime to_date form : #{date_b.to_date}\n\n"
puts "DateTime to_date form : #{date_c.to_date}\n\n"
输出:
DateTime to_date form : 2019-08-10
DateTime to_date form : 2018-08-10
DateTime to_date form : 2019-08-10