{"id":16134,"date":"2017-02-27T17:24:19","date_gmt":"2017-02-27T08:24:19","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=16134"},"modified":"2024-05-06T11:40:36","modified_gmt":"2024-05-06T02:40:36","slug":"ruby-random%e3%82%92%e4%bd%bf%e3%81%84%e3%81%93%e3%81%aa%e3%81%99%ef%bc%81%ef%bc%88%e6%95%b0%e5%80%a4%e3%80%81%e6%96%87%e5%ad%97%e5%88%97%e3%80%81array%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/16134","title":{"rendered":"\u3010Ruby\u5165\u9580\u3011random\u3092\u4f7f\u3044\u3053\u306a\u3059\uff01\u3010\u6570\u5024\u3001\u6587\u5b57\u5217\u3001array\u3001secure\u3011"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f! \u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u9577\u702c\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306fRuby\u306e<span style=\"color: #0000ff;\"><strong>random\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u65b9\u6cd5<\/strong><\/span>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01<\/p>\n<p>\u4e00\u6982\u306b\u4e71\u6570\u3068\u8a00\u3063\u3066\u3082\u4e71\u6570\u306b\u306f\u8272\u3005\u306a\u7a2e\u985e\u304c\u3042\u308a\u30b1\u30fc\u30b9\u3054\u3068\u306b\u4f7f\u3044\u5206\u3051\u3066\u3044\u304b\u306a\u3044\u3068\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001ruby\u3067\u306erandom\u306e\u6271\u3044\u65b9\u306b\u3064\u3044\u3066<\/p>\n<div style=\"padding: 10px 5px 10px 20px; margin-bottom: 20px; border: 5px solid #ffe4e2;\"><span style=\"color: #339966;\"><strong>\u3010\u57fa\u790e\u3011<\/strong><\/span>Ruby\u306b\u304a\u3051\u308b\u30e9\u30f3\u30c0\u30e0(random)<br \/>\n<span style=\"color: #339966;\"><strong>\u3010\u57fa\u790e\u3011<\/strong><\/span>\u4e71\u6570\u306e\u7a2e\u3092\u8a2d\u5b9a\u3059\u308b<br \/>\n<span style=\"color: #339966;\"><strong>\u3010\u57fa\u790e\u3011<\/strong><\/span>\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5b57\u306e\u751f\u6210<br \/>\n<span style=\"color: #0000ff;\"><strong>\u3010\u767a\u5c55\u3011<\/strong><\/span>\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210<br \/>\n<span style=\"color: #0000ff;\"><strong>\u3010\u767a\u5c55\u3011<\/strong><\/span>\u30e9\u30f3\u30c0\u30e0\u306barray\u3092\u30b7\u30e3\u30c3\u30d5\u30eb<br \/>\n<span style=\"color: #0000ff;\"><strong>\u3010\u767a\u5c55\u3011<\/strong><\/span>\u30e9\u30f3\u30c0\u30e0\u306b\u914d\u5217\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3059<br \/>\n<span style=\"color: #0000ff;\"><strong>\u3010\u767a\u5c55\u3011<\/strong><\/span>securerandom\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30cb\u30fc\u30af\u306a\u6570\u5024\u3092\u4f5c\u6210\u3059\u308b<\/div>\n<p>\u3068\u3044\u3063\u305f\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u4e71\u6570\u3068\u306f<\/h2>\n<p>\u4e71\u6570\u3068\u306f\u898f\u5247\u6027\u306e\u306a\u3044\u6570\u5b57\u306e\u3053\u3068\u3067\u3001<\/p>\n<p>3\u300170\u3001-10\u300132\u3001-9\u300162\u30fb\u30fb\u30fb<\/p>\n<p>\u306e\u3088\u3046\u306b<span style=\"color: #0000ff;\"><strong>\u30e9\u30f3\u30c0\u30e0\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u6570\u5b57<\/strong><\/span>\u306e\u3053\u3068\u3092\u3044\u3044\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u5206\u91ce\u3067\u306f<span style=\"color: #0000ff;\"><strong>\u4e71\u6570\u3092\u4f7f\u7528\u3059\u308b\u6a5f\u4f1a\u304c\u591a\u304f<\/strong><\/span>\u3001\u3059\u3054\u308d\u304f\u306e\u30b2\u30fc\u30e0\u3084\u8868\u793a\u9806\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u3068\u304d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u81ea\u52d5\u751f\u6210\u306a\u3069\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>Ruby\u3067\u306f\u305d\u3093\u306a\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306b\u3044\u304f\u3064\u304b\u306e\u65b9\u6cd5\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u6b21\u9805\u3067\u306f\u3055\u3063\u305d\u304f\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u307f\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u30e9\u30f3\u30c0\u30e0(random)\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<h3>Ruby\u306b\u304a\u3051\u308b\u30e9\u30f3\u30c0\u30e0(random)<\/h3>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-36873\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/Untitled-design.jpg\" alt=\"Untitled design\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/Untitled-design.jpg 700w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/Untitled-design-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/Untitled-design-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/Untitled-design-640x366.jpg 640w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>Ruby\u3067\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5b57(\u4e71\u6570)\u3092\u767a\u751f\u3055\u305b\u308b\u305f\u3081\u306e\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e2\u3064\u3067\u3059\u3002<\/p>\n<ul>\n<li><span style=\"color: #339966;\"><strong>Kernel<\/strong><\/span>\u30af\u30e9\u30b9\u306b\u5b9a\u7fa9\u3055\u308c\u305frand\u30e1\u30bd\u30c3\u30c9<\/li>\n<li><span style=\"color: #339966;\"><strong>Random<\/strong><\/span>\u30af\u30e9\u30b9\u306b\u5b9a\u7fa9\u3055\u308c\u305frand\u30e1\u30bd\u30c3\u30c9<\/li>\n<\/ul>\n<p>\u4e3b\u306a\u9055\u3044\u306f<span style=\"color: #339966;\"><strong>Float(\u5c11\u6570\u70b9\u3092\u542b\u3093\u3060\u6570\u5024)<\/strong><\/span>\u3092\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3067\u3059\u3002<\/p>\n<p>Kernel#rand\u306fFloat\u3092\u305d\u306e\u307e\u307e\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u304c\u3001Random#rand\u306fFloat\u3092\u53d7\u3051\u53d6\u3063\u3066\u3001<span style=\"color: #0000ff;\"><strong>Float\u306e\u4e71\u6570\u3092\u767a\u751f\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n<\/strong><\/span><\/p>\n<h3>\u4e71\u6570\u306e\u7a2e\u3092\u8a2d\u5b9a\u3059\u308b<\/h3>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-36875\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/seed_ruby_random.jpg\" alt=\"seed_ruby_random\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/seed_ruby_random.jpg 700w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/seed_ruby_random-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/seed_ruby_random-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/seed_ruby_random-640x366.jpg 640w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>\u3059\u3079\u3066\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066<span style=\"color: #0000ff;\"><strong>\u4e71\u6570\u306e\u7a2e\u3092\u7406\u89e3\u3059\u308b\u3053\u3068<\/strong><\/span>\u306f\u5927\u5207\u3067\u3059\u3002<\/p>\n<p>\u4e71\u6570\u306e\u7a2e\u3068\u306f\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u969b\u306b<span style=\"color: #0000ff;\"><strong>\u5143\u3068\u306a\u308b\u6570\u5024<\/strong><\/span>\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u4e0a\u306e\u4e71\u6570\u306f\u64ec\u4f3c\u4e71\u6570\u3068\u547c\u3070\u308c\u3001\u300c\u672c\u7269\u306e\u4e71\u6570\u300d\u3068\u306f\u533a\u5225\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u300c\u64ec\u4f3c\u3063\u3066\u3053\u3068\u306f\u5b8c\u5168\u306b\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3067\u306f\u306a\u3044\u3063\u3066\u3053\u3068\uff1f\u300d<\/p>\n<p>\u305d\u3046\u306a\u3093\u3067\u3059\u3002\u5b9f\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u4e0a\u306e\u4e71\u6570\u306f\u6b8b\u5ff5\u306a\u304c\u3089<span style=\"color: #ff0000;\"><strong>\u5b8c\u74a7\u306b\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/strong><\/span><\/p>\n<p>\u306a\u306e\u3067\u3001\u540c\u3058\u4e71\u6570\u306e\u7a2e\u304b\u3089\u306f\u540c\u3058\u4e71\u6570\u304c\u9806\u756a\u306b\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u672c\u7269\u306e\u4e71\u6570\u306b\u3088\u308a\u8fd1\u3065\u3051\u3066\u3044\u304f\u305f\u3081\u306b\u306f<span style=\"color: #0000ff;\"><strong>\u4e71\u6570\u306e\u7a2e\u3092\u6bce\u56de\u5909\u3048\u3066<\/strong><\/span>\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n<p>ruby\u3067\u4e71\u6570\u306e\u7a2e\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306f\u305d\u308c\u305e\u308c<\/p>\n<ul>\n<li><span style=\"color: #339966;\"><strong>Kernel#rand\u306esrand\u30e1\u30bd\u30c3\u30c9<\/strong><\/span><\/li>\n<li><span style=\"color: #339966;\"><strong>Random#rand\u306e\u521d\u671f\u5024<\/strong><\/span><\/li>\n<\/ul>\n<p>\u3067\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>[Kernel#rand\u306e\u5834\u5408]<\/strong><\/p>\n<pre>srand(88)\r\n5.times do\r\n  puts rand(12)\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>8\r\n0\r\n1\r\n10\r\n4\r\n<\/pre>\n<p><strong>[Random#rand\u306e\u5834\u5408]<\/strong><\/p>\n<pre>random = Random.new(88)\r\n5.times do\r\n  puts random.rand(12)\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>8\r\n0\r\n1\r\n10\r\n4\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u540c\u3058\u4e71\u6570\u306e\u7a2e(88)\u3092\u6e21\u3057\u305f\u7d50\u679c\u306f<span style=\"color: #ff0000;\"><strong>\u5e38\u306b\u540c\u3058<\/strong><\/span>\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u4eca\u56de\u306f\u4e71\u6570\u306e\u7a2e\u3092\u624b\u52d5\u3067\u5165\u529b\u3057\u307e\u3057\u305f\u304c\u3001\u4e71\u6570\u306e\u7a2e\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306b\u306f\u3088\u304f\u73fe\u5728\u6642\u523b\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u73fe\u5728\u6642\u523b\u3067\u3042\u308c\u3070\u3001\u5b8c\u74a7\u306b\u30e9\u30f3\u30c0\u30e0\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3042\u308b\u7a0b\u5ea6\u30e9\u30f3\u30c0\u30e0\u306a\u4e71\u6570\u306e\u7a2e\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u306fRuby\u3067\u306f\u3001\u4e71\u6570\u306e\u7a2e\u3092\u7701\u7565\u3057\u305f\u5834\u5408<span style=\"color: #0000ff;\"><strong>\u81ea\u5206\u3067\u73fe\u5728\u6642\u523b\u3092\u4f7f\u3063\u3066\u4e71\u6570\u306e\u7a2e\u3092\u8a2d\u5b9a\u3057\u306a\u304f\u3066\u3082<\/strong><\/span>\u81ea\u52d5\u7684\u306b\u3001\u73fe\u5728\u306e\u6642\u523b\u3001\u30d7\u30ed\u30bb\u30b9ID\u3001srand\u3092\u547c\u3073\u51fa\u3057\u305f\u56de\u6570\u306a\u3069\u3092\u53c2\u8003\u306b\u30e9\u30f3\u30c0\u30e0\u306a\u4e71\u6570\u306e\u7a2e\u3092\u4f5c\u6210\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u306a\u306e\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u4e71\u6570\u306e\u7a2e\u3092\u4f5c\u6210\u3059\u308b\u5834\u5408\u306b\u306f\u4e71\u6570\u306e\u7a2e\u3092<span style=\"color: #ff0000;\"><strong>\u7701\u7565\u3057\u3066OK<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<h3>\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5b57\u306e\u751f\u6210<\/h3>\n<p>\u3067\u306f\u5b9f\u969b\u306b\u30e9\u30f3\u30c0\u30e0\u306a\u6570\u5024\u3092\u4f5c\u6210\u3057\u3066\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u306f<span style=\"color: #339966;\"><strong>Kernel#rand<\/strong><\/span>\u304b\u3089\u3067\u3059\u3002<br \/>\n\u4e71\u6570\u306e\u7a2e\u306f<span style=\"color: #ff0000;\"><strong>\u7701\u7565\u3057\u3066<\/strong><\/span>\u66f8\u304d\u307e\u3059\u3002<\/p>\n<pre>10.times do\r\n print \"#{rand(10)} \" #1\u301c9\u307e\u3067\u306e\u6570\u5024\r\nend\r\n\r\n10.times do\r\n print \"#{rand(4.8)} \" #1\u301c3\u307e\u3067\u306e\u6570\u5024\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>2 7 1 9 3 9 8 8 0 8\r\n2 2 0 1 3 2 0 0 2 1\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u6574\u6570\u502410\u3092\u4e0e\u3048\u305f\u5834\u5408\u306f0\u301c9\u306e\u6570\u5b57\u304c\u30e9\u30f3\u30c0\u30e0\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002<br \/>\nKernel#rand\u306eFloat\u3067\u3059\u304c\u30014.8\u306f4\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3068\u3044\u3046\u306e\u3082\u3001<span style=\"color: #ff0000;\"><strong>Float\u306f\u5c11\u6570\u90e8\u5206\u306f\u7701\u3044\u305f\u5f8c\u3001\u305d\u306e\u6570\u306e\u7d76\u5bfe\u5024\u3068\u3057\u3066\u6271\u308f\u308c\u308b<\/strong><\/span>\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u306a\u306e\u3067\u4f8b\u3048\u3070\u3001rand(-3.234234)\u306frand(3)\u3067\u3001rand(-23.1234141)\u306frand(23)\u3068\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u307e\u305frand\u3067\u306f<span style=\"color: #339966;\"><strong>\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong><\/span>\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3048\u3070\u3001<span style=\"color: #0000ff;\"><strong>Float\u3082\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<br \/>\n<\/strong><\/span><\/p>\n<pre>10.times do\r\n print \"#{rand(1..10)} \"\r\nend\r\n\r\n3.times do\r\n print \"#{rand(2.0..3.0)} \"\r\nend\r\n\r\n3.times do\r\n print \"#{rand(2.7..2.8)} \"\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>10 10 1 6 10 8 6 6 2 4\r\n2.1083541225992195 2.7853897133756753 2.847603590975523\r\n2.70918062792426 2.7883550987451726 2.771918027115617\r\n<\/pre>\n<p>\u3053\u3053\u30671\u3064\u6c17\u3092\u3064\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u306f\u3001\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u30c9\u30c3\u30c8\u304c2\u3064\u306e\u6f14\u7b97\u5b50(..)\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306f<span style=\"color: #ff0000;\"><strong>\u6700\u5927\u5024\u3092\u542b\u3080<\/strong><\/span>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<br \/>\n(\u30c9\u30c3\u30c8\u304c3\u3064&#8230;\u306e\u5834\u5408\u6700\u5927\u5024\u3092\u542b\u307e\u306a\u3044)<\/p>\n<p>\u3055\u304d\u307b\u3069\u306frand(10)\u3068\u3059\u308b\u30680\u301c9\u306e\u6570\u5024\u3067\u3057\u305f\u304c\uff0crand(1..10)\u306f1\u301c10\u307e\u3067\u306e\u6570\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002<br \/>\n<span style=\"color: #ff0000;\"><strong>\u6df7\u540c\u3057\u3084\u3059\u3044\u70b9<\/strong><\/span>\u306a\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u6b21\u306f<span style=\"color: #339966;\"><strong>Random#rand<\/strong><\/span>\u306e\u5834\u5408\u3067\u3059\u3002<\/p>\n<pre>random = Random.new()\r\n\r\n10.times do\r\n print \"#{random.rand(10)} \" #1\u301c9\u307e\u3067\u306e\u6570\u5024\r\nend\r\n\r\n3.times do\r\n print \"#{random.rand(4.8)} \" #0.0\u301c4.8\u307e\u3067\u306e\u6570\u5024\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>7 4 5 1 8 9 9 2 0 2\r\n2.590662476913416 0.7253362059816849 1.1154553072643587\r\n<\/pre>\n<p>\u3055\u304d\u307b\u3069\u306eKernel#rand\u3068\u6bd4\u3079\u3066\u307f\u3066\u307f\u308b\u3068\u3001\u4e00\u76ee\u77ad\u7136\u3067\u3059\u3002<br \/>\n\u305d\u3046\u3067\u3059\u3001<span style=\"color: #0000ff;\"><strong>Float\u3092\u3057\u3063\u304b\u308a\u3068\u89e3\u91c8<\/strong><\/span>\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n<p>Random#rand\u306e\u5834\u5408\u306frandom.rand(4.8)\u306e\u3088\u3046\u306b\u5f15\u6570\u3092\u4e0e\u3048\u308b\u3060\u3051\u30670.0\u301c4.8\u307e\u3067\u306e\u6570\u5024\u3092\u8fd4\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u540c\u69d8\u306b<span style=\"color: #339966;\"><strong>\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/strong><\/span>\u3082\u4f7f\u7528\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre>random = Random.new()\r\n\r\n10.times do\r\n print \"#{random.rand(1..10)} \"\r\nend\r\n\r\n3.times do\r\n print \"#{random.rand(2.0..3.0)} \"\r\nend\r\n\r\n3.times do\r\n print \"#{random.rand(2.7..2.8)} \"\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>8 2 2 1 7 4 10 10 2 9\r\n2.2046917956365313 2.2187304527963834 2.5738729113402106\r\n2.7983787713646606 2.7797992812680654 2.728137427385851\r\n<\/pre>\n<p>Kernel#rand\u306e\u5834\u5408\u3068\u540c\u3058\u7d50\u679c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f7f\u3063\u3066\u4e71\u6570\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u304c\u3001\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u3064\u3044\u3066\u7406\u89e3\u304c\u6d45\u3044\u3068\u611f\u3058\u3066\u3044\u308b\u65b9\u306f\u3053\u3061\u3089\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/19272\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/03\/image-24-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u5165\u9580\u3011\u7bc4\u56f2\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(Range)\u306e\u4f7f\u3044\u65b9\u3092\u7406\u89e3\u3057\u3088\u3046\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            \n<h2>\u30e9\u30f3\u30c0\u30e0(random)\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n<p>\u3053\u3053\u3067\u306frandom\u306e\u5fdc\u7528\u7684\u306a\u4f7f\u3044\u65b9\u3068\u3057\u3066\u3001<\/p>\n<ul>\n<li>\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210<\/li>\n<li>\u30e9\u30f3\u30c0\u30e0\u306barray\u3092\u30b7\u30e3\u30c3\u30d5\u30eb<\/li>\n<li>\u30e9\u30f3\u30c0\u30e0\u306b\u914d\u5217\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3059<\/li>\n<li>\u30e6\u30cb\u30fc\u30af\u306a\u6570\u5024\u3092\u4f5c\u6210\u3059\u308b<\/li>\n<\/ul>\n<p>\u306a\u3069\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\uff01<\/p>\n<h3>\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210<\/h3>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-36878\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/sentence_ruby_random.jpg\" alt=\"sentence_ruby_random\" width=\"700\" height=\"400\" srcset=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/sentence_ruby_random.jpg 700w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/sentence_ruby_random-150x86.jpg 150w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/sentence_ruby_random-300x171.jpg 300w, https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/sentence_ruby_random-640x366.jpg 640w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<p>\u6b21\u306b<span style=\"color: #ff0000;\"><strong>\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210<\/strong><\/span>\u3092\u884c\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<br \/>\n\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306e\u751f\u6210\u3092\u3059\u308b\u305f\u3081\u306e\u30e1\u30bd\u30c3\u30c9\u306f<span style=\"color: #ff0000;\"><strong>Ruby\u306b\u306f\u88c5\u5099\u3055\u308c\u3066\u3044\u306a\u3044<\/strong><\/span>\u306e\u3067\u3001\u81ea\u5206\u3067\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070<span style=\"color: #339966;\"><strong>A\u304b\u3089Z\u307e\u3067\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217<\/strong><\/span>\u3092\u8868\u793a\u3055\u305b\u3088\u3046\u3068\u601d\u3046\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre>for i in 1..10\r\n  print ('A'..'Z').to_a[rand(26)]\r\nend\r\n<\/pre>\n<p><strong><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/strong><\/p>\n<pre>CDODVWVXZA\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u6587\u5b57\u5217\u3092\u751f\u6210\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\uff01<\/p>\n<h3>\u30e9\u30f3\u30c0\u30e0\u306barray\u3092\u30b7\u30e3\u30c3\u30d5\u30eb<\/h3>\n<p>rand\u3092\u5229\u7528\u3057\u3066<span style=\"color: #ff0000;\"><strong>array\u306e\u30b7\u30e3\u30c3\u30d5\u30eb<\/strong><\/span>\u3092\u884c\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre>array = [1,2,3,4,5]\r\n\r\np array.sort_by{rand}\r\n<\/pre>\n<p><strong><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/strong><\/p>\n<pre>[3, 5, 2, 4, 1]\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b<span style=\"color: #339966;\"><strong>sort_by\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306brand\u3092\u6e21\u3059<\/strong><\/span>\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u306b\u4e26\u3073\u66ff\u3048\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30e9\u30f3\u30c0\u30e0\u306b\u914d\u5217\u306e\u8981\u7d20\u3092\u53d6\u308a\u51fa\u3059<\/h3>\n<p>\u4e71\u6570\u3092\u4f7f\u3048\u3070\u3001\u914d\u5217\u306e\u4e2d\u304b\u3089<span style=\"color: #0000ff;\"><strong>\u30e9\u30f3\u30c0\u30e0\u306b1\u3064\u53d6\u308a\u51fa\u3059<\/strong><\/span>\u3053\u3068\u3082\u7c21\u5358\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre>array = [\"red\",\"green\",\"yellow\"]\r\n3.times do\r\np array[rand(3)]\r\nend\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>\"green\"\r\n\"red\"\r\n\"red\"\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306brand\u3092index\u3068\u3057\u3066\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<h3>securerandom\u3092\u4f7f\u3063\u3066\u3001\u30e6\u30cb\u30fc\u30af\u306a\u6570\u5024\u3092\u4f5c\u6210\u3059\u308b<\/h3>\n<p>securerandom\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3048\u3070\u3001\u30e6\u30cb\u30fc\u30af(\u91cd\u8907\u3057\u306a\u3044)\u6570\u5024\u3092\u7c21\u5358\u306b\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre>require 'securerandom'\r\np SecureRandom.hex(32)\r\np SecureRandom.uuid\r\np SecureRandom.base64(16)  \r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>\"bd1d8c52953d92aaada10139bf6db256881f7a13947af2516cf5e7363d5b58a8\"\r\n\"aa73d3d1-16ed-4bc7-81e8-765e34b1a263\"\r\n\"NysbLF4qFHYtM6o5LLsN7w==\"\r\n<\/pre>\n<p>16\u9032\u6570\u3001uuid(Universally Unique IDentifier)\u3001base64\u306a\u3069<span style=\"color: #0000ff;\"><strong>\u751f\u6210\u3067\u304d\u308b\u6570\u5024\u306f\u8c4a\u5bcc<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<h2>Ruby\u3092\u72ec\u5b66\u3067\u9811\u5f35\u3063\u3066\u3044\u308b\u3051\u3069\u5148\u304c\u898b\u3048\u306a\u3044\u65b9\u306e\u305f\u3081\u306b<\/h2>\n<p><div class=\"box_voice\">\u72ec\u5b66\u3067Ruby\u3092\u9811\u5f35\u3063\u3066\u3044\u308b\u308f\u3051\u3060\u3051\u3069\u3001\u5148\u304c\u898b\u3048\u306a\u3044\u30fb\u30fb\u30fb<\/div><\/p>\n<p>\u305d\u3093\u306a\u65b9\u3001\u5b9f\u306f\u3044\u3089\u3063\u3057\u3083\u308b\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p><div class=\"box_voice\">\u3044\u3084\u3001\u304a\u308c\u306f\u9055\u3046\u305e\u3002\u5148\u306e\u30ad\u30e3\u30ea\u30a2\u3082\u3057\u3063\u304b\u308a\u898b\u3048\u3066\u308b\u3057\u3001\u72ec\u5b66\u306e\u6210\u679c\u3082\u51fa\u3066\u304d\u3066\u3044\u308b<\/div><\/p>\n<p>\u305d\u3093\u306a\u65b9\u3067\u3042\u308c\u3070\u3001\u3053\u308c\u304b\u3089\u5148\u306e\u8a71\u306f\u5fc5\u8981\u306a\u3044\u3067\u3057\u3087\u3046\u3002\u305d\u3063\u3068\u30da\u30fc\u30b8\u306e\u9589\u3058\u308b\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u300c\u5148\u304c\u898b\u3048\u306a\u3044\u300d\u3068\u5fc3\u306e\u5e95\u3067\u306f\u52d8\u4ed8\u3044\u3066\u3044\u308b\u305d\u3053\u306e\u5965\u3055\u3093\u3002\u3053\u306e\u5148\u3092\u8aad\u307f\u9032\u3081\u3066\u3001\u4e00\u7dd2\u306b\u8ab2\u984c\u3092\u6df1\u5800\u308a\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u306a\u305c\u300c\u5148\u304c\u898b\u3048\u306a\u3044\u300d\u3068\u3044\u3046\u4e0d\u5b89\u3084\u60a9\u307f\u3092\u62b1\u3048\u3066\u3057\u307e\u3046\u306e\u304b<\/h3>\n<p>\u3055\u3066\u3001\u300c\u4e00\u5bf8\u5148\u306f\u95c7\u3060\u30fb\u30fb\u30fb\u300d\u3068\u304a\u60a9\u307f\u3092\u62b1\u3048\u3066\u3044\u308b\u65b9\u306b\u3001\u306a\u305c\u72ec\u5b66\u3067Ruby\u3092\u52c9\u5f37\u3057\u3066\u3044\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u305d\u306e\u3088\u3046\u306a\u73fe\u72b6\u3092\u62b1\u3048\u3066\u3057\u307e\u3046\u306e\u304b\u3001\u4e00\u7dd2\u306b\u8003\u3048\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u5148\u304c\u898b\u3048\u306a\u3044\u73fe\u72b6\u3092\u8e0f\u307e\u3048\u3001\u8ab2\u984c\u3068\u3057\u3066\u8003\u3048\u3089\u308c\u308b\u3082\u306e\u306f\u4ee5\u4e0b\u306e\u3069\u308c\u304b\u306b\u8a72\u5f53\u3059\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<div class=\"box01\">\n<ul>\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u4e0a\u9054\u304c\u898b\u3048\u306a\u3044<\/strong><\/li>\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u7d99\u7d9a\u3067\u304d\u306a\u3044\u6c17\u304c\u3059\u308b<\/strong><\/li>\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30ad\u30eb\u3092\u7fd2\u5f97\u3057\u305f\u59ff\u304c\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u306a\u3044<\/strong><\/li>\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30ad\u30eb\u3092\u6d3b\u304b\u3057\u305f\u4ed5\u4e8b\u3092\u7372\u5f97\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u304c\u3067\u304d\u306a\u3044<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>\u3053\u308c\u3089\u306e\u3069\u308c\u304b\u306b\u8a72\u5f53\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u300c\u306a\u3093\u3068\u306a\u304f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3092\u3057\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u72b6\u614b\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u8981\u56e0\u306f\u3001\u4e09\u65e5\u574a\u4e3b\u306b\u306a\u308b\u7406\u8ad6\u3068\u540c\u3058\u306a\u3093\u3067\u3059\u304c\u3001\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3092\u3057\u306a\u304d\u3083\u300d\u3068\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3092\u9811\u5f35\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u72b6\u614b\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u53d7\u9a13\u52c9\u5f37\u3092\u3084\u3063\u305f\u7d4c\u9a13\u306e\u3042\u308b\u65b9\u306a\u3089\u982d\u304c\u3082\u3052\u308b\u307b\u3069\u306b\u9996\u3092\u7e26\u306b\u632f\u3063\u3066\u3057\u307e\u3046\u65b9\u3082\u591a\u3044\u306e\u3067\u3059\u304c\u3001\u300c\u4eca\u65e5\u30825\u6642\u9593\u52c9\u5f37\u3059\u308b\u305e\u300d\u3084\u300c\u4eca\u65e5\u306f\u3053\u306e\u7ae0\u3092\u7d42\u308f\u3089\u3059\u305e\u300d\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u5b66\u7fd2\u3092\u9032\u3081\u308b\u3053\u3068\u306b\u610f\u8b58\u304c\u884c\u304d\u904e\u304e\u3066\u3057\u307e\u3046\u3068\u3001\u3042\u308b\u7a0b\u5ea6\u5b66\u7fd2\u3092\u7d99\u7d9a\u3057\u305f\u5f8c\u306b\u300c\u5148\u304c\u898b\u3048\u306a\u3044\u30fb\u30fb\u30fb\u300d\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<h3>\u672a\u6765\u306b\u5149\u3092\u5f53\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3092\u300c\u6210\u679c\u304c\u51fa\u308b\u3082\u306e\u300d\u306b\u3059\u308b\u305f\u3081\u306b<\/h3>\n<p>\u5148\u307b\u3069\u3001\u300c\u306a\u305c\u5148\u304c\u898b\u3048\u306a\u3044\u3068\u3044\u3046\u60a9\u307f\u3084\u4e0d\u5b89\u3092\u62b1\u3048\u3066\u3057\u307e\u3046\u306e\u304b\u300d\u3068\u3044\u3046\u7591\u554f\u306b\u5bfe\u3057\u3066\u306e\u7b54\u3048\u3092\u793a\u3057\u3066\u3044\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u308c\u3089\u306e\u8ab2\u984c\u3068\u3044\u3046\u306e\u306f\u3001\u72ec\u5b66\u3092\u3057\u3066\u3044\u308c\u30709\u5272\u306e\u65b9\u304c\u3076\u3064\u304b\u3063\u3066\u3057\u307e\u3046\u58c1\u3060\u305d\u3046\u3067\u3001\u3044\u308f\u3070\u3001\u3042\u308b\u3042\u308b\u306e\u73fe\u8c61\u306a\u306e\u3067\u3059\u3002<\/p>\n<p>\u72ec\u5b66\u3092\u3057\u3066\u3044\u3066\u3001\u300c\u306a\u3093\u304b\u524d\u306b\u9032\u3081\u3066\u3044\u306a\u3044\u305e\u300d\u3068\u611f\u3058\u308b\u306e\u306f\u3053\u306e\u305b\u3044\u306a\u3093\u3067\u3059\u306d\u3002\u7518\u304f\u898b\u304c\u3061\u3067\u3059\u304c\u3001\u975e\u5e38\u306b\u3084\u3063\u304b\u3044\u3002<\/p>\n<p><strong>\u3053\u308c\u304c\u3055\u3089\u306b\u3084\u3063\u304b\u3044\u3055\u3092\u6975\u3081\u3066\u3044\u308b\u306e\u306f\u3001\u4e0a\u8a18\u306b\u6319\u3052\u305f\u8ab2\u984c\u306e\u307b\u3068\u3093\u3069\u304c\u3001<\/strong><strong>1\u4eba\u3067\u89e3\u6c7a\u3067\u304d\u306a\u3044\u3082\u306e\u3070\u304b\u308a\u3060\u304b\u3089\u3067\u3059\u3002<\/strong><\/p>\n<p>\u5b9f\u306f\u3001\u3053\u308c\u3089\u306e\u307b\u3068\u3093\u3069\u304c\u7d4c\u9a13\u8005\u306b\u52a9\u3051\u3066\u3082\u3089\u3044\u306a\u304c\u3089\u89e3\u6c7a\u3057\u306a\u3044\u3068\u3001\u3059\u3050\u306b\u9055\u3046\u65b9\u5411\u3078\u3068\u6d41\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u3046\u8a00\u3044\u5207\u308c\u308b\u306e\u306f\u3001\u4ee5\u524d\u306e\u79c1\u3082\u305d\u3046\u3060\u3063\u305f\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u30a8\u30f3\u30b8\u30cb\u30a2\u3084\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u95a2\u9023\u306e\u30ad\u30e3\u30ea\u30a2\u306b\u8a73\u3057\u3044\u65b9\u3084\u73fe\u5f79\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u76f8\u8ac7\u3057\u306a\u304c\u3089\u4fee\u6b63\u3092\u52a0\u3048\u3001\u5b66\u7fd2\u3092\u5b9f\u8df5\u3057\u3066\u4eca\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><div class=\"box_voice\">\u305d\u3046\u306f\u8a00\u3063\u3066\u3082\u3001\u5468\u308a\u306b\u305d\u3046\u3044\u3046\u4eba\u304c\u3044\u306a\u3044\u3057\u30fb\u30fb\u30fb<\/div><\/p>\n<p>\u3068\u3044\u3046\u65b9\u3082\u3044\u308b\u3067\u3057\u3087\u3046\u3002<strong>\u305d\u3046\u3044\u3046\u6642\u306b\u3053\u305d\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30b9\u30af\u30fc\u30eb\u306e\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u3092\u5229\u7528\u3059\u308b\u306e\u3067\u3059\u3002<\/strong><\/p>\n<p><div class=\"box_voice\">\u55b6\u696d\u3092\u304b\u3051\u3089\u308c\u3066\u6642\u9593\u306e\u7121\u99c4\u306b\u7d42\u308f\u308b\u3067\u3057\u3087\uff1f<\/div><\/p>\n<p>\u3068\u3044\u3046\u8003\u3048\u306b\u8fbf\u308a\u3064\u3044\u3066\u3057\u307e\u3044\u307e\u3059\u3088\u306d\u3002<strong>\u7d50\u8ad6\u304b\u3089\u8a00\u3046\u3068\u5f0a\u793e\u3067\u306f\u3001\u305d\u3046\u3044\u3063\u305f\u5f37\u5f15\u306a\u55b6\u696d\u7b49\u3092\u884c\u3046\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u3001\u5b89\u5fc3\u3057\u3066\u53d7\u8b1b\u3067\u304d\u307e\u3059\u3002<\/strong><\/p>\n<p>\u300c\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u306e\u5148\u3042\u308b\u672a\u6765\u300d\u3092\u5149\u3067\u660e\u308b\u304f\u7167\u3089\u3059\u306b\u306f\u3001\u5f0a\u793e\u306e\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u304c\u3074\u3063\u305f\u308a\u3060\u3068\u65ad\u8a00\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u304f\u3089\u3044\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u306b\u81ea\u4fe1\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u306b\u306f\u4ee5\u4e0b\u306e3\u5927\u7279\u5178\u3082\u3064\u3044\u3066\u304d\u307e\u3059\uff01<\/p>\n<div class=\"box01\">\n<ul>\n<li><strong>\u300c\u6700\u77ed1\u30f6\u6708\u3067\u958b\u767a\u304c\u3067\u304d\u308b\u5b66\u7fd2\u65b9\u6cd5\u300d\u96fb\u5b50\u66f8\u7c4d\uff08\u975e\u58f2\u54c1\uff09<\/strong><\/li>\n<li><strong>\u52b9\u7387\u7684\u306a\u30aa\u30ea\u30b8\u30ca\u30eb\u5b66\u7fd2\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0<\/strong><\/li>\n<li><strong>\u672a\u7d4c\u9a13\u306e\u8ee2\u8077\uff08\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\uff09\u3092\u53ef\u80fd\u306b\u3059\u308b\u30ad\u30e3\u30ea\u30a2\u30b5\u30dd\u30fc\u30c8<\/strong><\/li>\n<\/ul>\n<\/div>\n<p>\u4e0a\u8a18\u306e\u7279\u5178\u3060\u3051\u3067\u3082\u4ed6\u306e\u30b9\u30af\u30fc\u30eb\u306b\u306f\u306a\u3044\u30dd\u30a4\u30f3\u30c8\u3060\u3068\u81ea\u4fe1\u3092\u6301\u3063\u3066\u3044\u308b\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u7279\u5178\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3092\u3059\u308b\u6bce\u65e5\u304b\u3089\u3001\u30ef\u30af\u30ef\u30af\u3057\u306a\u304c\u3089\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u5b66\u7fd2\u3067\u304d\u308b\u6bce\u65e5\u306b\u5909\u3048\u308b\u4f53\u9a13\u3092\u4e00\u5ea6\u3067\u3044\u3044\u306e\u3067\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n 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\u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u9577\u702c\u3067\u3059\u3002 \u4eca\u56de\u306fRuby\u306erandom\u3001\u4e71\u6570\u3092\u751f\u6210\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01 \u4e00\u6982\u306b\u4e71\u6570\u3068\u8a00\u3063\u3066\u3082\u4e71\u6570\u306b\u306f\u8272\u3005\u306a\u7a2e\u985e\u304c\u3042\u308a\u30b1\u30fc\u30b9\u3054\u3068\u306b\u4f7f\u3044\u5206\u3051\u3066\u3044\u304b\u306a\u3044\u3068\u3044\u3051\u307e\u305b\u3093\u3002 \u3053\u306e\u8a18\u4e8b\u3067 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":36867,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"swell_btn_cv_data":"","footnotes":""},"categories":[2352],"tags":[1041,114],"class_list":["post-16134","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ruby-study","tag-random","tag-ruby"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u3010Ruby\u5165\u9580\u3011random\u3092\u4f7f\u3044\u3053\u306a\u3059\uff01\u3010\u6570\u5024\u3001\u6587\u5b57\u5217\u3001array\u3001secure\u3011 | \u4f8d\u30a8\u30f3\u30b8\u30cb\u30a2\u30d6\u30ed\u30b0<\/title>\n<meta name=\"description\" content=\"\u3053\u306e\u8a18\u4e8b\u3067\u306f\u300c 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