ruby 笔记之四

# why is ruby

=begin
 变量名，变量值，变量类型，变量的作用域
=end


a = 5

b = "hh"

puts "a=#{a}"

puts "b=#{b}"


a = 5

print "a=",a,"   ",a.class,"/n"

a = "hh"

print "a=",a,"  ",a.class

print "/n"

class Person
 
   def talk
       puts "today is #@date"
   end
       attr_writer :date  
   end
 
p1 = Person.new
p1.date = "sunday"
p1.talk




a = 5

b = 3

puts (a > b)?("a>b") : ("a<b")