str = "你好"
num = 1 
arr = [1, 2, 3] 

• if XXX then  XXX  elseif XXX then  XXX  end
• title = "登录" if (title == "")
• unless (password == "") the  XXX  end

begin
  # something risky
rescue SomeException 
  XXX
rescue Exception
  XXX
rescue
  XXX 
end

def add(a, b)
  a + b
end

class TestApplication
  def initialize  #构造函数
    self.runing = false  #给属性赋值
  end

  attr_accessor :runing  #属性 attr_reader attr_writer

  @@instance = nil #类变量
  @instance_variable = 0 #实例变量

  def self.instance
    @@instance = self.new if @@instance == nil
    @@instance #函数返回单例
  end

 #实例方法
  def run

     return if self.runing
XXX
   self.runing = true
  end

#类方法
def self.say_hello
   puts "Hello"
end

end

• $LOAD_PATH << 'D:/GZJ/OpenExpressApp/Tool/OpenTest/dll'
  require "Microsoft.VisualStudio.TestTools.UITesting.dll"

•   require "Utils/find_control_helper.rb"