require 'ostruct'
zhouxing = OpenStruct.new(
name: 'zhouxing',
programming_language: 'ruby',
work_experience: 'Two years ruby experience'
)
def introduce(person)
p "hello everyone, my name is #{person.name}, my programming language is #{person.programming_language}, and I have #{person.work_experience}"
end
introduce(zhouxing)