ruby require

# require_relative 'trig'


require 'pathname'
dir = Pathname.new(__FILE__).parent . to_s + '/'# 当前文件完整路径


require  dir + 'trig'
# require_relative 'moral'
require dir + 'moral'


y = Trig.sin(Trig::PI/4)
puts y
t = Moral.sin(33)
puts t