Ruby 时间 – 函数

Time#-()是一个时间类的方法，在减去秒数后返回一个新的时间值。

语法。Time.-()

参数。时间值

返回：用它减去秒后的新时间值。

例子 #1 :

# Ruby code for Time.-() method
  
# 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"
  
  
# - form 
puts "Time a - form : #{a - 1200}\n\n"
puts "Time b - form : #{b - (60 * 60 * 24)}\n\n"
puts "Time c - form : #{c - (100)}\n\n"

输出:

Time a : 2019-01-01 00:00:00 +0000

Time b : 2019-10-01 00:00:00 +0000

Time c : 2019-12-31 00:00:00 +0000



Time a - form : 2018-12-31 23:40:00 +0000

Time b - form : 2019-09-30 00:00:00 +0000

Time c - form : 2019-12-30 23:58:20 +0000

代码#2：-()方法的例子

# Ruby code for Time.-() method
  
# 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"
  
  
# - form 
puts "Time a - form : #{a - 1200}\n\n"
puts "Time b - form : #{b - (60 * 60 * 24)}\n\n"
puts "Time c - form : #{c - (100)}\n\n"

输出:

Time a : 2019-08-27 11:20:57 +0000

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

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



Time a - form : 2019-08-27 11:00:57 +0000

Time b - form : 1000-10-09 00:00:00 +0000

Time c - form : 2020-11-30 23:58:20 +0000