{"id":2680,"date":"2021-10-29T08:13:53","date_gmt":"2021-10-28T23:13:53","guid":{"rendered":"https:\/\/suzutukiblog.com\/?p=2680"},"modified":"2022-02-06T09:31:42","modified_gmt":"2022-02-06T00:31:42","slug":"ruby-2","status":"publish","type":"post","link":"https:\/\/suzutukiblog.com\/index.php\/2021\/10\/29\/ruby-2\/","title":{"rendered":"Ruby\u306e\u307e\u3068\u3081\uff12(\u771f\u507d\u5024\u304b\u3089FizzBuzz\u307e\u3067)"},"content":{"rendered":"

\uff11\u304b\u3089\u7d9a\u304f<\/a><\/p>\n

\u771f\u507d\u5024\u3068\u8ad6\u7406\u6f14\u7b97\u5b50(&&||)<\/h3>\n

\u771f(true\uff09\u3068\u306a\u308b\u4f8b<\/p>\n

true\u305d\u306e\u3082\u306e\u3000\u3059\u3079\u3066\u306e\u6570\u5024\uff11\uff0c\uff10\uff0c\u2212\uff11
\n\u3059\u3079\u3066\u306e\u6587\u5b57\u5217’abc’\u3000’true’\u3000’false’<\/p>\n

\u8ad6\u7406\u7a4d(and)<\/p>\n

\u30fba && b
\na\u3068\uff42\u304c\u3068\u3082\u306b\u771f\u306e\u5834\u5408\u306b\u771f<\/p>\n

\u8ad6\u7406\u548c(or)<\/p>\n

a||b
\na\u304b\uff42\u306e\u5c11\u306a\u304f\u3068\u3082\uff11\u3064\u304c\u771f\u306e\u5834\u5408\u306b\u771f<\/p>\n

and, or, not
\n\u2191\u2193\u4f3c\u3066\u3044\u308b\u304cand, or, not\u306f\u3001&&, ||, !,\u3068\u6bd4\u3079\u3066\u512a\u5148\u9806\u4f4d\u304c\u4f4e\u3044
\n&&, ||, !<\/p>\n

\u57fa\u672c\u7684\u306b\u306f\u6df7\u5728\u3055\u305b\u306a\u3044<\/p>\n

t1 = true\r\n=> true\r\n\r\nt2 = true\r\n=> true\r\n\r\nfi = false\r\n=> false\r\n\r\n1 = false\r\n=> false\r\n\r\nf2 = false\r\n=> false\r\n\r\nt1 && t2\r\n=> true\r\n\r\nt1 and t2\r\n=> true\r\n\r\nt1 && f1\r\n=> false\r\n\r\nt1 and f2\r\n=> false\r\n\r\nt1 || t2\r\n=> true\r\n\r\nt1 or t2\r\n=> true\r\n\r\nt1 || f2\r\n=> true\r\n\r\nt1 or f2\r\n=> true\r\n\r\nf1 || f2\r\n=> false\r\n\r\n!t1\r\n=> false\r\n\r\nnot(t1)\r\n=> false\r\n\r\n!f1\r\n=> true\r\n\r\nnot(f1)\r\n=> true<\/pre>\n
\u512a\u5148\u9806\u4f4d\u3067\u5909\u308f\u3063\u3066\u3057\u307e\u3046\u305f\u3081<\/p>\n
!t1 || t1\r\n=> true\r\n\r\n\u2193 ||\u304c\u5148\u306b\u51e6\u7406\u3055\u308ctrue\u3060\u3063\u305f\u3082\u306e\u304cnot\u3067\u53cd\u8ee2\u3057\u305f\r\nnot t1 || t1\r\n=> false\r\n\r\n\u2193&&\u304c\u5148\u306b\u51e6\u7406\u3055\u308cfalse\u306b\u306a\u308a||\u3067true\u306b\u306a\u3063\u305f\r\nt1 || t2 && f1\r\n=> true\r\n\r\nand\u306f\u6700\u5f8c\u306a\u306e\u3067false\r\nt1 or t2 and f1\r\n=> false<\/pre>\n
\u305d\u3093\u306a\u3068\u304d\u306f\u30ab\u30c3\u30b3\u3092\u4f7f\u3063\u3066\u660e\u793a\u7684\u306b\u512a\u5148\u9806\u4f4d\u3092\u6307\u5b9a\u3057\u3088\u3046\uff01<\/p>\n
(t1 || t2) && f1\r\n=> false<\/pre>\n
\u6761\u4ef6\u5206\u5c90if<\/h3>\n
if \u6761\u4ef6\u5f0f1
\n\u6761\u4ef6\u5f0f1\u304c\u771f\u306e\u6642\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nelsif \u6761\u4ef6\u5f0f2
\n\u6761\u4ef6\u5f0f1\u304c\u507d\u3067\u6761\u4ef6\u5f0f2\u304c\u771f\u306e\u6642\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nelsif \u6761\u4ef6\u5f0f3
\n\u6761\u4ef6\u5f0f1\u53ca\u3073\u6761\u4ef6\u5f0f2\u304c\u507d\u3067\u6761\u4ef6\u5f0f3\u304c\u771f\u306e\u6642\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nelse
\n\u5168\u3066\u306e\u6761\u4ef6\u5f0f\u304c\u507d\u306e\u6642\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nend<\/p>\n
\u4f8b1:\u30c6\u30b9\u30c8\u306e\u7d50\u679c\u306b\u3088\u3063\u3066\u901a\u77e5\u8868\u306e\u6210\u7e3e\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u306b\u51fa\u529b\u3059\u308b<\/h3>\n
# 90\u70b9\u4ee5\u4e0aA
\n# 80\u70b9\u4ee5\u4e0aB
\n# 60\u70b9\u4ee5\u4e0aC
\n# 60\u70b9\u672a\u6e80D<\/p>\n
score = 90\r\n  if score >= 90\r\n    puts 'A'\r\n  elsif score >= 80\r\n    puts 'B'\r\n  elsif score >= 60\r\n    puts 'C'\r\n  else\r\n    puts 'D'\r\n  end<\/pre>\n
A\u304c\u51fa\u529b\u3055\u308c\u308b<\/p>\n
\u4f8b2:\u5546\u54c1\u306e\u5185\u5bb9\u3092\u51fa\u529b<\/h3>\n
\u305d\u306e\u4ed6 : ‘Not found’<\/p>\n
product = 'fish'\r\n  if product == 'meat'\r\n    puts 'meat'\r\n  elsif product == 'fish'\r\n    puts 'fish'\r\n  elsif product == 'vegetable<\/span><\/span>'\r\n    puts 'vegetable<\/span><\/span>'\r\n  else\r\n    puts 'Not found'\r\nend<\/pre>\n
fish\u304c\u51fa\u529b\u3055\u308c\u308b<\/p>\n
==\u3067\u306a\u3044\u3068\u30a8\u30e9\u30fc\u304c\u751f\u3058\u308b<\/p>\n
\u5fdc\u7528) \u5165\u5834\u6599\u91d1\u306e\u8a08\u7b97<\/h3>\n
\u5927\u4eba18\u6b73\u4ee5\u4e0a10,000\u5186
\n\u4e2d\u4eba6\u6b73\u4ee5\u4e0a18\u6b73\u672a\u6e805,000\u5186
\n\u5c0f\u4eba6\u6b73\u672a\u6e801,000\u5186<\/p>\n
age = 19\r\n  if age >= 18\r\n    puts '10,000'\r\n  elsif age >= 6\r\n    puts '5000'\r\n  else puts '1,000'\r\nend<\/pre>\n
unless \u6761\u4ef6\u5f0f
\n\u6761\u4ef6\u5f0f\u304c\u507d(false)\u306e\u6642\u306b\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nend<\/p>\n
\u4f8b3: \u5909\u6570n\u306e\u5024\u304c\uff10\u3067\u306a\u3051\u308c\u3070\u3001\u201dNot zero.”
\n\u3068\u51fa\u529b\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092if\u3092\u3064\u304b\u3063\u3066\u8a18\u8ff0
\n\u203b\u30d2\u30f3\u30c8\uff1a\u5024\u304c0\u304b\u5224\u5b9a\u3059\u308b\u306b\u306f\u3001zero?\u30e1\u30bd\u30c3\u30c9\u304c\u4f7f\u3048\u308b<\/h3>\n
# n = 0
\n# if !n.zero?
\n# puts ‘Not zero.’
\n# end<\/p>\n
# unless\u3092\u4f7f\u304a\u3046<\/p>\n
n = 0\r\n  unless n.zero?\r\n    puts 'Not zero.'\r\n    puts 'This is zero'\r\nend<\/pre>\n
This is zero\u304c\u51fa\u529b\u3055\u308c\u308b\u3002
\n\u203b\u7121\u7406\u306bunless\u3092\u4f7f\u3046\u5fc5\u8981\u306f\u306a\u3044\u3002\u8aad\u307f\u3084\u3059\u3044\u3068\u601d\u3046\u5834\u5408\u306fif\u3067OK<\/p>\n
Case\u6587<\/h3>\n
case \u5bfe\u8c61\u30aa\u30d6\u30b8\u30a7\u30af\u30c8
\nwhen \u50241
\n\u50241\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u306b\u884c\u3046\u51e6\u7406
\nwhen \u50242
\n\u50242\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u306b\u884c\u3046\u51e6\u7406
\nwhen \u50243
\n\u50243\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u306b\u884c\u3046\u51e6\u7406
\nelse
\n\u3069\u306e\u5024\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306b\u884c\u3046\u51e6\u7406
\nend<\/p>\n
\u4f8b4:\u5546\u54c1\u306e\u5185\u5bb9\u3092\u51fa\u529b<\/h3>\n
if\u6587\u3060\u3068<\/p>\n
product = 'fish'\r\n  if product == 'meat'\r\n    puts 'meat'\r\n  elsif product == 'fish'\r\n    puts 'fish'\r\n  elsif product == 'vegetable<\/span><\/span>'\r\n    puts 'vegetable<\/span><\/span>'\r\n  else\r\n    puts 'Not found'\r\nend<\/pre>\n
#case\u6587\u306e\u5834\u5408<\/p>\n
product = 'tuna' \r\n  case product\r\n    when 'pork'\r\n      puts 'meat'\r\n    when 'tuna'\r\n      puts 'fish'\r\n    when 'tomato'\r\n      puts 'vegetabale'\r\n    else\r\n    puts 'Not Found'\r\nend<\/pre>\n
fish\u304c\u51fa\u529b\u3055\u308c\u308b\u3002<\/p>\n
case\u306e\u307b\u3046\u304c\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308b\u304cif\u3068\u306e\u9055\u3044\u306b\u6ce8\u610f\uff01<\/p>\n
\u30e1\u30bd\u30c3\u30c9\u3068\u306f\uff1f<\/h3>\n
\u8907\u6570\u306e\u51e6\u7406\u30921\u3064\u306b\u307e\u3068\u3081\u3066\u6271\u3044\u3084\u3059\u304f\u3057\u305f\u3082\u306e
\n\u30fb\u30af\u30e9\u30b9\u5185\u306b\u5b9a\u7fa9\u3059\u308b\u2252\u30af\u30e9\u30b9\u5185\u306b\u5b9a\u7fa9\u3059\u308b\u95a2\u6570<\/p>\n
def \u30e1\u30bd\u30c3\u30c9\u540d(\u5f15\u65701, \u5f15\u65702, …)
\n\u5b9f\u884c\u3059\u308b\u51e6\u7406
\n\u5b9f\u884c\u3059\u308b\u51e6\u7406
\nend<\/p>\n
\u4f8b4:Hello,World!\u3068\u51fa\u529b\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u8a18\u8ff0<\/h3>\n
\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3002\u30e1\u30bd\u30c3\u30c9\u540d\u306f\u3001hello_world\u3068\u3059\u308b<\/p>\n
def hello_world\r\n\u00a0 puts 'Hello,World!'\r\nend\r\n\r\nhello_world<\/pre>\n
‘Hello,World!’<\/strong>\u304c\u51fa\u529b\u3055\u308c\u308b
\n<\/p>\n
\u5f15\u6570\u3042\u308a<\/strong>\u306e\u5834\u5408
\n2\u3064\u306e\u6570\u5b57\u306e\u8db3\u3057\u7b97\u3092\u884c\u3044\u3001\u305d\u306e\u5024\u3092\u8fd4\u3059\u30e1\u30bd\u30c3\u30c9\u3092\u8a18\u8ff0
\n\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3002\u30e1\u30bd\u30c3\u30c9\u540d\u306fadd\u3068\u3059\u308b<\/p>\n
def add(x, y)\r\n\u00a0 x + y\r\nend\r\n\r\nputs add(10, 1)<\/pre>\n
11\u304c\u51fa\u529b\u3055\u308c\u308b<\/p>\n
return\u306fJavaScript\u3068\u9055\u3063\u3066\u3044\u3089\u306a\u3044\u3088<\/p>\n
\u30e1\u30bd\u30c3\u30c9\u306e\u547d\u540d\u898f\u5247<\/h3>\n
\u5148\u982d\u306b\u6570\u5b57\u3092\u4f7f\u3046\u3068\u30a8\u30e9\u30fc\u3001\u30de\u30b8\u30c3\u30af\u30ca\u30f3\u30d0\u30fc\u3082\u3084\u3081\u3088\u3046
\n2\u5358\u8a9e\u4ee5\u4e0a\u306f_\u3092\u4f7f\u3046(\u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9)\u2192Hello_World!<\/p>\n
\u5f15\u6570\u306b\u6e21\u3055\u308c\u305f\u52d5\u7269\u540d\u306b\u3088\u3063\u3066\u9069\u5207\u306a\u9cf4\u304d\u58f0\u3092\u8fd4\u3059\u30e1\u30bd\u30c3\u30c9cry\u3092\u4f5c\u6210\u3057\u3066\u547c\u3073\u51fa\u3059
\n# dog : ‘bow’ cat : ‘meow’ cow : ‘moo’
\n# \u5f15\u6570animal.
\n# \u623b\u308a\u5024\u3092\u51fa\u529b\u3059\u308b<\/p>\n
def cry(animal)\r\n  if animal == 'dog'\r\n    puts 'bow'\r\n  elsif animal == 'cat'\r\n    puts 'meow'\r\n  elsif animal == 'cow'\r\n    puts 'moo'\r\n  else puts '???'\r\n  end\r\nend\r\nputs cry('cat')<\/pre>\n
meow\u304c\u51fa\u529b\u3055\u308c\u308b<\/p>\n
\u203b\u30dd\u30a4\u30f3\u30c8\uff1a\u5f15\u6570\u3042\u308a\u306e\u5834\u5408def cry(animal)\u306e\u3088\u3046\u306b\u6700\u521d\u306b()\u3067\u8a2d\u5b9a\u3059\u308b\u3002
\n\u3042\u3068\u306eif\u6587\u306f\u5909\u308f\u308a\u304c\u306a\u3044\u3002\u6700\u5f8c\u306fputs cry()\u3067animal\u306f\u4e2d\u3067\u4ee3\u5165\u3055\u308c\u308b\u304b\u3089\u4e0d\u8981<\/p>\n
FizzBuzz\u30e1\u30bd\u30c3\u30c9(\u3068\u3066\u3082\u6709\u540d)
\n# 3\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019Fizz’\u3092\u8fd4\u3059
\n# 5\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019Buzz’\u3092\u8fd4\u3059
\n# 15\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019FizzBuzz’\u3092\u8fd4\u3059
\n# \u305d\u308c\u4ee5\u5916\u306e\u6570\u5024\u306f\u3001\u305d\u306e\u6570\u5024\u3092\u6587\u5b57\u5217\u306b\u5909\u3048\u3066\u8fd4\u3059\u3002
\n# \u88dc\u8db3
\n# \u30e1\u30bd\u30c3\u30c9\u540d\u306fFizz_Buzz\u3068\u3059\u308b\u3002
\n# \u5f15\u6570\u540d\u306fn\u3068\u3059\u308b
\n# \u5f15\u6570\uff4e\u306f1\u4ee5\u4e0a\u306e\u6574\u6570\u304c\u5165\u308b
\n# puts Fizz_Buzz(1)\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\u52d5\u4f5c\u304c\u6b63\u3057\u3044\u304b\u78ba\u8a8d\u3057\u3088\u3046<\/p>\n
FizzBuzz\u30e1\u30bd\u30c3\u30c9<\/h3>\n
3\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019Fizz'\u3092\u8fd4\u3059\r\n5\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019Buzz'\u3092\u8fd4\u3059\r\n15\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u5024\u3092\u5f15\u6570\u306b\u6e21\u3059\u3068\u3001\u2019FizzBuzz'\u3092\u8fd4\u3059\r\n\u305d\u308c\u4ee5\u5916\u306e\u6570\u5024\u306f\u3001\u305d\u306e\u6570\u5024\u3092\u6587\u5b57\u5217\u306b\u5909\u3048\u3066\u8fd4\u3059\u3002\r\n\r\n\u203b\u88dc\u8db3\r\n\u30e1\u30bd\u30c3\u30c9\u540d\u306fFizz_Buzz\u3068\u3059\u308b\u3002\u5f15\u6570\u540d\u306fn\u3068\u3059\u308b\r\n\u5f15\u6570\uff4e\u306f1\u4ee5\u4e0a\u306e\u6574\u6570\u304c\u5165\u308b\r\nputs fizz_buzz(1)\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001\r\n\u52d5\u4f5c\u304c\u6b63\u3057\u3044\u304b\u78ba\u8a8d\u3057\u3088\u3046<\/pre>\n
def Fizz_Buzz(n)\r\n  if n % 15 == 0\r\n    puts 'FizzBuzz'\r\n  elsif n % 3 == 0\r\n    puts 'Fizz'\r\n  elsif n % 5 == 0\r\n    puts 'Buzz'\r\n  else puts n.to_s\r\nend\r\n\r\nputs Fizz_Buzz(1)\r\nputs Fizz_Buzz(3)\r\nputs Fizz_Buzz(5)\r\nputs Fizz_Buzz(6)\r\nputs Fizz_Buzz(9)\r\nputs Fizz_Buzz(10)\r\nputs Fizz_Buzz(12)\r\nputs Fizz_Buzz(15)<\/pre>\n
\u203b\u30dd\u30a4\u30f3\u30c8\u306f\u5148\u306b15\u3067\u5272\u308a\u5207\u308c\u308b\u6570\u3092\u66f8\u304f\u3053\u3068<\/p>\n
puts print p pp\u306e\u9055\u3044<\/h3>\n
puts ‘suzutuki’
\nsuzutuki
\n=> nil
\n2.5.1 :002 > print ‘suzutuki’
\nsuzutuki => nil
\n2.5.1 :003 > p ‘suzutuki’
\n“suzutuki”
\n=> “suzutuki”
\npp ‘suzutuki’
\n“suzutuki”
\n=> “suzutuki”<\/p>\n
puts\u304c\u6539\u884c\u3000print\u304c\u4e00\u884c\u3000p\u3084pp\u306f\u30c7\u30d0\u30c3\u30b0\u7528\u3068\u899a\u3048\u3066\u304a\u3053\u3046\uff01<\/p>\n
\uff13\u306b\u7d9a\u304f<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\uff11\u304b\u3089\u7d9a\u304f \u771f\u507d\u5024\u3068\u8ad6\u7406\u6f14\u7b97\u5b50(&&||) \u771f(true\uff09\u3068\u306a\u308b\u4f8b true\u305d\u306e\u3082\u306e\u3000\u3059\u3079\u3066\u306e\u6570\u5024\uff11\uff0c\uff10\uff0c\u2212\uff11 \u3059\u3079\u3066\u306e\u6587\u5b57\u5217’abc’\u3000’true’\u3000&# […]<\/p>\n","protected":false},"author":1,"featured_media":2684,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[27,31],"tags":[],"class_list":["post-2680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming-note","category-ruby"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/comments?post=2680"}],"version-history":[{"count":7,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2680\/revisions"}],"predecessor-version":[{"id":4480,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2680\/revisions\/4480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/media\/2684"}],"wp:attachment":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/media?parent=2680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/categories?post=2680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/tags?post=2680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}