红宝石 |时间循环函数

Time#round()是一个 Time 类方法，它通过将亚秒四舍五入到十进制数字中的给定精度来返回一个新的时间对象。

Syntax: Time.round()

Parameter: Time values

Return: a new time object by rounding sub seconds to a given precision in decimal digits.

示例 #1：

# Ruby code for Time.round() method
  
# loading library
require 'time'
  
# declaring time 
a = Time.new(2019)
  
# declaring time
b = Time.new(2019, 10)
  
# declaring time
c = Time.new(2019, 12, 31)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# round form 
puts "Time a round form : #{a.round(10)}\n\n"
puts "Time b round form : #{b.round(3)}\n\n"
puts "Time c round form : #{c.round}\n\n"

输出 ：

Time a : 2019-01-01 00:00:00 +0100

Time b : 2019-10-01 00:00:00 +0200

Time c : 2019-12-31 00:00:00 +0100



Time a round form : 2019-01-01 00:00:00 +0100

Time b round form : 2019-10-01 00:00:00 +0200

Time c round form : 2019-12-31 00:00:00 +0100

示例 #2：

# Ruby code for Time.round() method
  
# Ruby code for Time.round() method
  
# loading library
require 'time'
  
# declaring time 
a = Time.now
  
# declaring time
b = Time.new(1000, 10, 10)
  
# declaring time
c = Time.new(2020, 12)
  
# Time 
puts "Time a : #{a}\n\n"
puts "Time b : #{b}\n\n"
puts "Time c : #{c}\n\n\n\n"
  
  
# round form 
puts "Time a round form : #{a.round(10)}\n\n"
puts "Time b round form : #{b.round(3)}\n\n"
puts "Time c round form : #{c.round}\n\n"

输出 ：

Time a : 2019-08-28 07:11:47 +0000

Time b : 1000-10-10 00:00:00 +0000

Time c : 2020-12-01 00:00:00 +0000



Time a round form : 2019-08-28 07:11:47 +0000

Time b round form : 1000-10-10 00:00:00 +0000

Time c round form : 2020-12-01 00:00:00 +0000