kaochenlong

{
  "nodes": [
    {
      "parameters": {
        "url": "https://apiservice.mol.gov.tw/OdService/download/A17000000J-020028-jpp",
        "options": {}
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [

kaochenlong

#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>

// munged from https://github.com/simontime/Resead

namespace sead
{
class Random
{

kaochenlong

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDOXNHpude7f2rmW60Qx9/PINnJ/TETg/XqAdvEtjuj+6v1oGZD/oaF3nhG43ypSutaB12NTV4K+F6EUmmXVXk2rhzU6kCIP+pTmOE9cUpCvkW2SZtba0OKOpJGc5BS9BWuLp4mpYHuDcF5MSRH69zs3WCYrzbU5+i26uJ8Pr6vJVWwlCGrnnZ7WFTovrBW91clNvzewrDpyrtKfpEFe7VKIuu3hdcu7Q6WeHIQt+M/brESSzLca9aD/v0yRzCnZ+gvt14EceKMVg19ZqS21kyBQMPjXzF3VTYf7UdK87jjMqww9TR+AgiTsf9oy/npLnk3I4HnUWre4iUaljpXm8cF [email protected]

kaochenlong

def block_test(&b)
  b.call
  b.yield
  b.()
  b.[]
  b.===
end

block_test { puts "hi" }

kaochenlong

啟動 Rails Server (for C9)

rails server -b $IP -p $PORT

產生 Product 的指令：

rails generate scaffold product name:string photo:string description:text price:decimal is_available:boolean

建立資料表

kaochenlong

class A
  def self.my_attr_accessor(attr)
    define_method "#{attr}" do
      instance_variable_get("@#{attr}")
    end

    define_method "#{attr}=" do |param|
      instance_variable_set("@#{attr}", param)
    end
  end

kaochenlong

module ActiveRecord
  class Base
    def self.has_one(something)
      define_method "#{something}=".to_sym do |new_value|
        instance_variable_set("@#{something}", new_value)
      end

      define_method something.to_sym do
        instance_variable_get("@#{something}")
      end

kaochenlong

p [*1..5].map { |i| i * 2 }
p ([*1..5].map { |i| i * 2 })

p [*1..5].map do |i| i * 2 end
p ([*1..5].map) do |i| i * 2 end
p ([*1..5].map do |i| i * 2 end)

def hello(x)
  puts "hi"
  if block_given?

kaochenlong

5.my_times do |i|
  puts "#{i} hello"
end

# 或
my_times(5) do |i|
  puts "#{i} hello"
end

# 期望結果：

kaochenlong

class Product
  # 實作
end

class Cart
  # 實作
end

p1 = Product.new("ruby", 100)
p2 = Product.new("php", 200)