fsword

class Order
  attr_accessor :type, :sub_orders
  def initialize type
    self.type = type
    self.sub_orders = []
  end

  # 统计订单及其包含子订单的数量，按照订单类型归类
  def count_items
    result = sub_orders.reduce({}) do |result, order|

fsword

-module(multi_try).
-export([dothese/1]).

dothese(FuncArray) ->
    Me = self(),
    lists:foreach(fun(F) -> spawn(fun() -> F(Me) end) end, FuncArray),
    spawn(fun() -> timer:sleep(200), Me ! timeout end),
    Result = get_result("",length(FuncArray)),
    io:format("result: ~p~n", [Result]).

fsword

require 'sinatra'
require 'action_mailer'

class Mailer < ActionMailer::Base
  def contact
    mail(
      :to      => "test@example.com",
      :from    => "test@example.com",
      :subject => "Test") do |format|
        format.text

fsword

RubyVM::InstructionSequence.compile_option = { 
  tailcall_optimization: true,
  trace_instruction: false
} 

eval <<end
  def fact(n, result = 1)
    if n == 1
      result
    else

fsword

def foo
  111
rescue
  222
ensure
  333
end

puts foo # got 111

fsword

module MyTool
  module Tree
    class << self

      def loop root, &block
        return false unless File.exist? root
        block_given? ? exec(root, &block) : collect(root)
      end
      
      def exec root, &block

fsword

require 'thread'

def prime n, concurrent_num=4

  full_list = (2..n).to_a
  prime_list = []
  stop_index = (n ** 0.5).floor
  last_prime = 2
  
  while(last_prime < stop_index)

fsword

require './prime.rb' # user defined function
require 'benchmark'
require 'digest/md5'

result = {
  4 => 'ae5161e4645f5cd58897d32f529f3ad5',
  5 => 'cf7b5007830f057a04d2b696527952e7',
  6 => 'a43beaed59a26b8d85868eaa8fa2e972',
  7 => 'c1aa9bda24aa8bc5473ca1f51c9fd106'
}

fsword

def prime n
  list = (2..n).to_a
  (2...(n ** (0.5)).floor).each do |i|
     list.delete_if{|e| e > i && e % i == 0}
  end
  list
end

fsword

王
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