1.
class person
def initialize
puts "nijhao"
enddef talk (name)
puts "your name is # "
end
end=begin
p = person.new
p.talk("samba")
=end
class student < person
def talk (name)
super
puts "your name is #"
end
end
p1 = person.new
p1.talk("gjhohj")
p2 = student.new
p2.talk("samba")
2.#例項變數、類變數、類方法
#與全域性變數和例項變數不同，類變數在使用前必須要初始化；全域性變數和例項變數如果沒有初始化，其值為 nil 。
class student
@@count = 0 ; #類變數
def initialize(name)
@name = name
@@count += 1
enddef talk
puts "name= #@name,this is class count #@@count"
endend
p = student.new("samba")
p1 = student.new("gjhohj")
p1.talk
p.talk
3.#static class
class student
@@count = 0
def initialize
@@count += 1
enddef student.classcount
puts "class's count #@@count"
endend
p = student.new
p1 = student.new
student.classcount
4.#例項方法
class person
def talk
puts "hello"
endend
p1 = person.new
p2 = person.new
def p2.talk
puts "ps hello"
enddef p2.laugh
puts "he he he!!!!"
endp1.talk
p2.talk
p2.laugh
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