DateTime#hour():hour()是DateTime類方法,它從給定的DateTime對象返回小時,即從0到23。
用法:DateTime.hour()
參數:日期時間值
返回:小時,即從給定的DateTime對象的0到23
示例1:
# Ruby code for DateTime.hour() 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))
# hour method
puts "DateTime hour form : #{date_a.hour}\n\n"
puts "DateTime hour form : #{date_b.hour}\n\n"
puts "DateTime hour form : #{date_c.hour}\n\n"
輸出:
DateTime hour form : 4 DateTime hour form : 12 DateTime hour form : 4
示例2:
# Ruby code for DateTime.hour() 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')
# hour method
puts "DateTime hour form : #{date_a.hour}\n\n"
puts "DateTime hour form : #{date_b.hour}\n\n"
puts "DateTime hour form : #{date_c.hour}\n\n"
輸出:
DateTime hour form : 5 DateTime hour form : 4 DateTime hour form : 4
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注:本文由純淨天空篩選整理自mayank5326大神的英文原創作品 Ruby | DateTime hour() function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。