ruby入门_each

people1 = ["Tom", "Marry", "Jack", "Kay"]
people2 = {"Tom"=>23, "Marry"=>22, "Jack"=>25, "Kay"=>20}
# ------------------------
people1.each do |person|
puts person
end
# ------------------------
people2.each do |personInfo|
# puts "name #{personInfo[0]} age #{personInfo[1]}"
puts personInfo[0] + " : " + personInfo[1].to_s
end
# ------------------------
people2.each do |name,age|
# puts "name #{name} age #{age}"
puts name + " : " + age.to_s
end