％記法
【開発環境】
OS：Win11（64ビット）
Ruby 3.0.1
VSCodeバージョン: 1.57.1
【%wで文字列の配列を定義する】←文字列の配列
ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38) [x64-mingw32]
C:\Users\shyok>irb
irb(main):001:0> animals = %w(dog cat mouse)
=> ["dog", "cat", "mouse"]
irb(main):002:0> animals[0]
=> "dog"
irb(main):003:0> animals[1]
=> "cat"
irb(main):004:0> animals[2]
=> "mouse"
irb(main):005:0>
【%iで文字列の配列を定義する】←シンボルの配列
C:\Users\shyok>irb
irb(main):001:0> animals = %i(dog cat mouse)
=> [:dog, :cat, :mouse]
irb(main):002:0> animals[0]
=> :dog
irb(main):003:0> animals[1]
=> :cat
irb(main):004:0> animals[2]
=> :mouse
irb(main):005:0>
