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ruby 文字を表示させる(超基礎)

Last updated at Posted at 2019-10-31
  • irb
  • ri オブジェクト名
  • オブジェクトの中身見れるよ
print "hello world" #表示
puts "hellow world" #行末に改行が含まれる
p "hello world" #デバッグ用としてオブジェストの種類が分かりやすいように表示

これを実行すると
hello worldhello world
"hello world"

と表示される

###変数

  • いきなり書き始めてもいい
  • 英小文字または_から書き始める
msg = "hello world"
puts msg

実行結果:hello world

###定数

  • 定数 ⇒ 書き換えたくない文字のこと
  • 英大文字から書き始める
TENKI = "晴れ"
puts TENKI

実行結果:晴れ

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