Ironruby-quick learning of basic Ruby knowledge in half an hour

ArticleDirectory

• Variables
• Conditions
• Loops
• Error Handling
• Methods
• Classes
• Using code from other files

In the previous blogs, I introduced some ironruby-related content, because ironruby is in ruby. net, so its basic syntax and usage are similar to Ruby. To learn how to use ironruby, we must first quickly understand how to use ruby, this article mainly introduces some basic Ruby knowledge, which is also the main things I have used over the past few days. I hope it will be helpful to beginners.

Variables

Defining variables is simple. You only need to write a lower-case code name followed by the equal sign and value, as shown in figure

 
STR = "hello"
Num = 1
Arr = [1, 2, 3]
 

Conditions

• If XXX then XXX elseif XXX then XXX end
• Title = "login" If (Title = "")
• Unless (Password = "") the xxx end

Loops

• While XXX do XXX end
• Until XXX do XXX end
• For item in XXX do XXX end
• 10. Times do | I | print I end
• A. Each do | item | puts item end

Error Handling

 
Begin
# Something risky
Rescue someexception
Xxx
Rescue exception
Xxx
Rescue
Xxx
End
 

Methods

 
Def add (A, B)
A + B
End
 

• The Return Value of the method can be returned through return XXX, or directly write the value to be returned at the end of the method.
• Result1 = add (1, 2) or result2 = Add 1, 2

Classes

 
Class testapplication
Def initialize # Constructor
Self. runing = false # assign values to attributes
End
 

Attr_accessor: runing # Attribute attr_reader attr_writer

@ Instance = nil # class variable
@Instance_variable = 0 # instance variable

Def self. Instance
@ Instance = self. New if @ instance = Nil
@ Instance # function return Singleton
End

 

# Instance method
Def run
 

Return if self. runing
Xxx
Self. runing = true
End

 
# Class methods
Def self. say_hello
Puts "hello"
End
 

End

• Generate testapplication. New
• UseSuperCall the parent class method. If the parameters are the same, the parameter can be left blank.

Using code from other files

• $ Load_path <'d:/gzj/openexpressapp/tool/opentest/dll'
  Require "Microsoft. visualstudio. testtools. uitesting. dll"

• Require "utils/find_control_helper.rb"

 

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