# 基本形
arr0 = ["a", "b", "c"]

# カンマのみならず, 改行でも要素を区切れる
arr1 = [
  "a", "b", "c"
  "d", "e", "f"
  "g", "h", "i"
]

# カンマ+改行(任意回)でも一つの区切りとして認識
# 最末尾にカンマを入れてもOK
# カンマを複数回重ねるとNG
arr2 = [
  "a", "b", "c",
  "d", "e", "f",

  "g", "h", "i",
  # "j", "k", "l",,, <- NG
]

# 最初の要素は空白を開ける必要あり
# 2個目以降は空けなくてもOK
arr3 = [
 "a"
"b"
"c"
]

# 1から10までの配列
arr4 = [1..10] # [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

# 逆向きも負の数もOK
arr5 = [10..-1]

# 小数点もいけるけど1.0ずつ増えていくため末尾の数値が表示されないことがある
arr6 = [0.1..3.0] # [0.1, 1.1, 2.1]

# 文字列は無理
arr7 = ["a".."z"] # [ "a" ]

# booleanでもいけなくはない
arr8 = [true..false] # [true, 0]
arr9 = [false..true] # [false, 1]
arr10 = [true..3] # [true, 2, 3]
arr11 = [true..-3] # [true, 0, -1, -2, -3]