如果Time.new是上午,如果下午是下午,如何打印早晨
00:00-12:00
12:00-00:00
[如果您将进行大量测试,这是另一种可能性(不是我提倡戴上帽子给猴子打补丁):
class Time
def morning?
hour < 12
end
def afternoon?
hour >= 12
end
end
puts Time.now.morning? ? 'morning' : 'afternoon'
怎么样:
puts Time.now.hour < 12 ? 'morning' : 'afternoon'
相当于:
if Time.now.hour < 12
puts 'morning'
else
puts 'afternoon'
end
(0..11).include?(Time.now.hour) ? 'morning' : 'afternoon'
def get_time_of_day(hour)
if hour => 5 and hour <= 9
return "early_morning"
elsif hour > 9 and hour <= 11
return "late morning"
elsif hour > 11 and hour <= 1
return "early afternoon"
elsif hour > 1 and hour <= 4
return "late afternoon"
elsif hour > 4 and hour <= 7
return "evening"
end