?? e6.5-2.rb
字號:
#E6.5-2.rb
class Person
def speak
"protected:speak "
end
def laugh
" private:laugh"
end
protected :speak
private :laugh
end
class Student < Person
def useLaugh
puts laugh
end
def useSpeak
puts speak
end
end
p2=Student.new
p2.useLaugh
p2.useSpeak
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