{"id":11835,"date":"2021-10-01T10:40:31","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=11835"},"modified":"2024-05-06T11:39:48","modified_gmt":"2024-05-06T02:39:48","slug":"%e3%81%99%e3%81%90%e3%81%ab%e4%bd%bf%e3%81%88%e3%82%8bruby%e3%81%ae%e6%9d%a1%e4%bb%b6%e5%88%86%e5%b2%90%e3%80%8cif%e3%80%8d%e6%96%87%e6%b3%95%e3%83%bb%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%be%e3%81%a8","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/11835","title":{"rendered":"\u3010Ruby\u5165\u9580\u3011if\u3084if else\u306e\u57fa\u672c\u304b\u3089AND\u3084OR\u3092\u4f7f\u3046\u5fdc\u7528\u307e\u3067\u5b8c\u5168\u89e3\u8aac!!"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u3000\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u6843\u592a\u90ce\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306fRuby\u306eif\u6587\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3092\u3059\u3059\u3081\u3066\u3044\u304d\u307e\u3059\u3002if\u6587\u306e\u57fa\u672c\u7684\u306a\u3053\u3068\u304b\u3089\u5b9f\u8df5\u7684\u306a\u3053\u3068\u307e\u3067\u3092\u4e00\u901a\u308a\u30de\u30b9\u30bf\u30fc\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u672c\u8a18\u4e8b\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u305d\u306e\u70ba\u3001\u672c\u8a18\u4e8b\u3092\u8aad\u307f\u7d42\u308f\u308b\u9803\u306b\u306f\u3001\u3042\u306a\u305f\u306fRuby\u306eif\u6587\u3092\u304d\u3061\u3093\u3068\u6574\u7406\u3057\u3066\u7406\u89e3\u3057\u3066\u3044\u308b\u3053\u3068\u3067\u3057\u3087\u3046\u3002\u305d\u3057\u3066\u3001\u305c\u3072<b>\u672c\u8a18\u4e8b\u3092\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3057\u3066\u3001\u4f7f\u3044\u65b9\u3092\u5fd8\u308c\u305f\u6642\u306f\u3059\u3050\u306b\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u30aa\u30b9\u30b9\u30e1<\/b>\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f<\/p>\n<div class=\"box01\">\n<ul>\n<li><b>if\u6587\u306e\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9<\/b><\/li>\n<li><b>if else\u6587\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n<li><b>or\u6f14\u7b97\u5b50\u3067\u300cA\u3082\u3057\u304f\u306fB\u300d\u6761\u4ef6\u3092\u5b9f\u73fe\u3059\u308b<\/b><\/li>\n<li><b>nil\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b<\/b><\/li>\n<\/ul>\n<\/div>\n<p>\u306a\u3069\u306e\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u5fdc\u7528\u7684\u304b\u3064\u5b9f\u8df5\u7684\u306a\u5185\u5bb9\u3092\u9806\u306b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u4e00\u7dd2\u306b\u5b66\u7fd2\u3092\u9032\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>if\u6587\u306e\u57fa\u672c<\/h2>\n<p>\u307e\u305a\u306fif\u6587\u306e\u57fa\u672c\u3092\u307f\u3066\u3044\u304f\u3053\u3068\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>if\u6587\u306e\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9<\/h3>\n<p>\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">if \u6761\u4ef6 then\r\n  \u51e6\u7406\r\nend<\/pre>\n<p>if\u306f\u65e5\u672c\u8a9e\u3067\u300c\u3082\u3057\u300d\u3001then\u306f\u300c\u305d\u306e\u3068\u304d\u306f\u300d\u3068\u8a33\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001\u3082\u3057\u300c\u6761\u4ef6\u300d\u304c\u6e80\u305f\u3055\u308c\u308b\u3001\u300c\u305d\u306e\u3068\u304d\u306f\u300d\u3001\u300c\u51e6\u7406\u300d\u3092\u5b9f\u884c\u3057\u3066\u7d42\u4e86\uff08end)\u3059\u308b\u3002\u3068\u3044\u3046\u6d41\u308c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306a\u30b5\u30f3\u30d7\u30eb\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p># \u30b5\u30f3\u30d7\u30eba<\/p>\n<pre class=\"lang:ruby decode:true \"># \u30e6\u30fc\u30b6\u304c\u304a\u9152\u3092\u98f2\u3081\u308b\u5e74\u9f62\u304b\u3069\u3046\u304b\u5224\u5b9a\u3059\u308b\u51e6\u7406\r\nage = 18 # \u30e6\u30fc\u30b6\u306e\u5e74\u9f62\r\nif age &lt; 20 then\r\n  puts \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002<\/pre>\n<p>\u201c\u6761\u4ef6\u201d\u306b\u3042\u305f\u308b\u90e8\u5206\u304c\u300c age &lt; 20 \u300d\u306e\u7b87\u6240\u3067\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u5909\u6570age\u306b\u306f\u201918\u2019\u304c\u5165\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u300c 18 &lt; 20 \u300d\u306f\u6570\u5f0f\u3068\u3057\u3066\u6b63\u3057\u304f\u3001\u6761\u4ef6\u3092\u6e80\u305f\u3057\u305f\u306e\u3067\u3001\u305d\u306e\u4e0b\u306b\u3042\u308b\u51e6\u7406\uff08puts \u301c)\u304c\u5b9f\u884c\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>age\u306e\u7b87\u6240\u309220\u4ee5\u4e0a\u306e\u6570\u5024\u306b\u5909\u3048\u3066\u3001\u5b9f\u65bd\u3059\u308b\u3068\u300c\u3042\u306a\u305f\u306f\u301c\u300d\u306e\u6587\u5b57\u304c\u51fa\u3066\u3053\u306a\u3044\u3053\u3068\u3092\u3054\u81ea\u8eab\u306e\u74b0\u5883\u3067\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u4ee5\u4e0a\u304c\u3001\u57fa\u672c\u7684\u306aif\u6587\u306e\u5f62\u3067\u3059\u304c\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p># \u30b5\u30f3\u30d7\u30ebb<\/p>\n<pre class=\"lang:ruby decode:true \">age = 18\r\nif age &lt; 20  # then\u3092\u7701\u7565\r\n  puts \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nend<\/pre>\n<p># \u30b5\u30f3\u30d7\u30ebc<\/p>\n<pre class=\"lang:ruby decode:true \">age = 18 # \u30e6\u30fc\u30b6\u306e\u5e74\u9f62\r\nputs \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\" if age &lt; 20  # if\u6587\u3092\u5f8c\u308d\u306b\u914d\u7f6e\u3059\u308b<\/pre>\n<p>\u30b5\u30f3\u30d7\u30ebb,c\u3068\u3082\u306b\u51fa\u529b\u7d50\u679c\u306f\u30b5\u30f3\u30d7\u30eba\u3068\u540c\u4e00\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u305e\u308c\u3001\u57fa\u672c\u7684\u306a\u5f62\u306b\u6bd4\u3079\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u30b3\u30fc\u30c9\u306e\u66f8\u304f\u91cf\u3092\u5c11\u306a\u304f\u3067\u304d\u305f\u308a\u3001\uff11\u884c\u306b\u307e\u3068\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306a\u3069\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u306e\u66f8\u304d\u65b9\u3092\u9078\u3076\u304b\u306f\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u4eba\u306e\u597d\u307f\u3084\u958b\u767a\u30c1\u30fc\u30e0\u306e\u65b9\u91dd\u306b\u3088\u308a\u69d8\u3005\u3067\u3059\u3002<\/p>\n<p><b>\u3069\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u3082\u67d4\u8edf\u306b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u8aad\u307f\u66f8\u304d\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4e0a\u8a18\u306e\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u826f\u3044<\/b>\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u57fa\u672c\u7684\u306aif\u6587\u306e\u66f8\u304d\u65b9\u306e\u6700\u5f8c\u306e\u7de0\u3081\u3068\u3057\u3066\u3001if\u6587\u306e\u7d50\u679c\u3092\u5909\u6570\u306b\u4ee3\u5165\u3059\u308b\u66f8\u304d\u65b9\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u30b5\u30f3\u30d7\u30eb\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002<\/p>\n<p># \u30b5\u30f3\u30d7\u30ebd<\/p>\n<pre class=\"lang:ruby decode:true \">age = 18\r\n# if\u6587\u306e\u7d50\u679c\u3092result\u306b\u4ee3\u5165\r\nresult = if age &lt; 20\r\n  \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nend\r\nputs result<\/pre>\n<p>if\u6587( if \u304b\u3089 end \u307e\u3067)\u306e\u51fa\u529b\u7d50\u679c\u3092\u5909\u6570result\u306b\u4ee3\u5165\u3057\u3001\u6700\u5f8c\u306bputs\u3067\u305d\u306e\u4e2d\u8eab\u3092\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306bif\u6587\u306e\u51e6\u7406\u7d50\u679c\u3092\u5f8c\u308d\u306b\u7d9a\u304f\u51e6\u7406\u3067\u6d3b\u7528\u3057\u305f\u3044\u5834\u5408\u306a\u3069\u306b\u306f\u4fbf\u5229\u306a\u4f7f\u3044\u65b9\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u899a\u3048\u3066\u304a\u304f\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3>if else\u6587\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u524d\u306e\u7ae0\u3067\u89e3\u8aac\u3057\u305f\u57fa\u672c\u5f62\u3067\u306f\u3001if\u6587\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u5834\u5408\u306e\u307fif\u6587\u306e\u4e2d\u306e\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u66f8\u304d\u65b9\u3067\u3057\u305f\u3002<\/p>\n<p>\u305f\u3060\u3001\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u3068\u304d\u306b\u3082\u5225\u306e\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u6642\u306b\u4f7f\u3046\u306e\u304c\u300cif else\u6587\u300d\u3001\u305d\u3057\u3066\u300cif elsif \u6587\u300d\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u6587\u306e\u69cb\u6210\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p># if else \u6587\u306e\u69cb\u6210<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">if \u6761\u4ef6\r\n  \u6761\u4ef6\u3092\u6e80\u305f\u3059\u5834\u5408\u306e\u51e6\u7406\r\nelse\r\n  \u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u306e\u51e6\u7406\r\nend<\/pre>\n<p># if elsif \u6587\u306e\u69cb\u6210<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">if \u6761\u4ef6\u30a4\r\n  \u6761\u4ef6\u30a4\u3092\u6e80\u305f\u3059\u5834\u5408\u306e\u51e6\u7406\r\nelsif \u6761\u4ef6\u30ed\r\n  \u6761\u4ef6\u30ed\u3092\u6e80\u305f\u3059\u5834\u5408\u306e\u51e6\u7406\r\nelsif \u6761\u4ef6\u30cf\r\n  \u6761\u4ef6\u30cf\u3092\u6e80\u305f\u3059\u5834\u5408\u306e\u51e6\u7406\r\nelse\r\n  \u6761\u4ef6\u30a4\u3001\u30ed\u3001\u30cf\u3092\u5168\u3066\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u306e\u51e6\u7406\r\nend<\/pre>\n<p><b>else\u306e\u3042\u3068\u306f\u201d\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u201d\u6642\u306b\u884c\u3044\u305f\u3044\u51e6\u7406\u3092\u66f8\u304f\u306e\u304c\u30dd\u30a4\u30f3\u30c8<\/b>\u3067\u3059\u3002\u307e\u305f\u3001elsif \u306f\u8907\u6570\u306e\u7570\u306a\u308b\u6761\u4ef6\u306b\u3088\u3063\u3066\u51e6\u7406\u3092\u5206\u3051\u305f\u3044\u5834\u5408\u306b\u6d3b\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001elsif\u306f\u4e0a\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u6761\u4ef6\u304b\u3089\u9806\u756a\u306b\u6761\u4ef6\u3092\u6e80\u305f\u3059\u304b\u5224\u5b9a\u3092\u884c\u3044\u3001\u6e80\u305f\u3057\u305f\u6642\u70b9\u3067\u305d\u306e\u5f8c\u308d\u306b\u3042\u308b\u6761\u4ef6\u5f0f\u306e\u5224\u5b9a\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u5177\u4f53\u7684\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p># if else \u6587\u306e\u30b5\u30f3\u30d7\u30eb<\/p>\n<pre class=\"lang:ruby decode:true \">age = 23\r\nif age &lt; 20\r\n  puts \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nelse\r\n  puts \"\u3042\u306a\u305f\u306f\u3059\u3067\u306b\u5927\u4eba\u306e\u4ef2\u9593\u5165\u308a\u3067\u3059\u3002\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u3042\u306a\u305f\u306f\u3059\u3067\u306b\u5927\u4eba\u306e\u4ef2\u9593\u5165\u308a\u3067\u3059\u3002<\/pre>\n<p># if elsif \u6587\u306e\u30b5\u30f3\u30d7\u30eb<\/p>\n<pre class=\"lang:ruby decode:true \">age = 60\r\nif age &lt; 20\r\n  puts \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nelsif 60 &lt;= age  \r\n  puts \"\u3042\u306a\u305f\u306f\u9084\u66a6\u3092\u8fce\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002\"\r\nelse\r\n  puts \"\u3042\u306a\u305f\u306f\u6210\u4eba\u3067\u3059\u3002\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u3042\u306a\u305f\u306f\u9084\u66a6\u3092\u8fce\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/pre>\n<p>\u5b9f\u969b\u306b\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u306b\u3042\u308b\u5909\u6570age\u306e\u5024\u3092\u8272\u3005\u3068\u5909\u66f4\u3057\u3066\u3001\u3069\u306eputs\u51e6\u7406\u304c\u884c\u308f\u308c\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3068\u7406\u89e3\u304c\u6df1\u307e\u308b\u306e\u3067\u662f\u975e\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u3053\u3053\u3067\u6c17\u3092\u3064\u3051\u308b\u30dd\u30a4\u30f3\u30c8\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002Ruby\u4ee5\u5916\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u5b66\u3093\u3067\u3044\u308b\u65b9\u306f\u7279\u306b\u6ce8\u610f\u3059\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u305d\u308c\u306f\u3001<b>elsif\u3068\u3044\u3046\u6587\u5b57\u306e\u3064\u3065\u308a<\/b>\u3067\u3059\u3002\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u3067\u306f\u3001\u300celse if\u300d\u3068\u3044\u3046\u66f8\u304d\u65b9\u304c\u3088\u304f\u3042\u308b\u306e\u3067\u3059\u304c\u3001Ruby\u3067\u306felsif\u3068\u66f8\u304d\u307e\u3059\u306e\u3067\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u672c\u7ae0\u306e\u6700\u5f8c\u306b\u3001elsif\u3068\u95a2\u9023\u6027\u306e\u5f37\u3044case\u6587\u306b\u3064\u3044\u3066\u8efd\u304f\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002elsif\u3068case\u6587\u306f\u8907\u6570\u306e\u6761\u4ef6\u3092\u6271\u3046\u3068\u3044\u3046\u70b9\u3067\u3068\u3066\u3082\u826f\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u305d\u308c\u305e\u308c\u306e\u51e6\u7406\u306e\u6d41\u308c\u3092\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p># elsif\u6587<\/p>\n<pre class=\"lang:ruby decode:true \">blood_type = \"B\"\r\nif blood_type == \"A\"\r\n  puts \"\u51e0\u5e33\u9762\u306a\u6027\u683c\u3067\u3059\u306d\"\r\nelsif blood_type == \"B\"\r\n  puts \"\u30de\u30a4\u30da\u30fc\u30b9\u3068\u8a00\u308f\u308c\u307e\u305b\u3093\u304b\uff1f\"\r\nelsif blood_type == \"O\"\r\n  puts \"\u5354\u8abf\u6027\u304c\u3042\u308a\u307e\u3059\u306d\"\r\nelsif blood_type == \"AB\"\r\n  puts \"\u597d\u5947\u5fc3\u304c\u65fa\u76db\u306a\u6027\u683c\u3067\u3059\u306d\"\r\nelse\r\n  puts \"\u8840\u6db2\u578b\u3092\u8abf\u3079\u3066\u307f\u307e\u305b\u3093\u304b\uff1f\"\r\nend<\/pre>\n<p># case\u6587<\/p>\n<pre class=\"lang:ruby decode:true \">blood_type = \"B\"\r\ncase blood_type\r\nwhen \"A\" then\r\n  puts \"\u51e0\u5e33\u9762\u306a\u6027\u683c\u3067\u3059\u306d\"\r\nwhen \"B\" then\r\n  puts \"\u30de\u30a4\u30da\u30fc\u30b9\u3068\u8a00\u308f\u308c\u307e\u305b\u3093\u304b\uff1f\"\r\nwhen \"O\" then\r\n  puts \"\u5354\u8abf\u6027\u304c\u3042\u308a\u307e\u3059\u306d\"\r\nwhen \"AB\" then\r\n  puts \"\u597d\u5947\u5fc3\u304c\u65fa\u76db\u306a\u6027\u683c\u3067\u3059\u306d\"\r\nelse\r\n  puts \"\u8840\u6db2\u578b\u3092\u8abf\u3079\u3066\u307f\u307e\u305b\u3093\u304b\uff1f\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c(\u4e21\u65b9\u306e\u30b5\u30f3\u30d7\u30eb\u3068\u3082\u306b\uff09<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u30de\u30a4\u30da\u30fc\u30b9\u3068\u8a00\u308f\u308c\u307e\u305b\u3093\u304b\uff1f<\/pre>\n<p>\u4f7f\u308f\u308c\u3066\u3044\u308b\u8a9e\u53e5\uff08case\u3084when)\u306e\u9055\u3044\u306f\u3082\u3061\u308d\u3093\u3042\u308a\u307e\u3059\u304c\u3001elsif\u6587\u3068case\u6587\u306e\u69cb\u6210\u306f\u3068\u3066\u3082\u4f3c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n<p>case\u6587\u306b\u3064\u3044\u3066\u3088\u308a\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3082\u53c2\u8003\u306b\u3057\u3066\u307f\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/19467\" 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-14-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u306f\u3058\u3081\u3066\u306eRuby\uff01case\u6587\u306e\u4f7f\u3044\u65b9\u3092\u30de\u30b9\u30bf\u30fc\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<h3>unless\u3092\u4f7f\u3044\u300c\u301c\u3067\u306f\u7121\u3044\u5834\u5408\u300d\u306e\u6761\u4ef6\u3092\u51e6\u7406\u3059\u308b\u65b9\u6cd5<\/h3>\n<p>\u57fa\u672c\u7de8\u306e\u6700\u5f8c\u306b\u767b\u5834\u3059\u308b\u306e\u306f\u3001<b>\u300c\u3082\u3057\u4eee\u306b\u301c\u3067\u306f\u7121\u3044\u5834\u5408\u300d\u3092\u5b9f\u73fe\u3059\u308bunless\u6587<\/b>\u306b\u3064\u3044\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u300c\u3082\u3057\u4eee\u306b\u301c\u3067\u306f\u7121\u3044\u5834\u5408\u300d\u3068\u304d\u304f\u3068\u3001\u5c11\u3057\u307e\u308f\u308a\u304f\u3069\u3044\u6761\u4ef6\u306b\u611f\u3058\u3001\u305d\u3082\u305d\u3082if\u6587\u3060\u3051\u3067\u826f\u3044\u306e\u3067\u306f\u3068\u611f\u3058\u308b\u65b9\u3082\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u306d\u3002<\/p>\n<p>\u3067\u3059\u304c\u3001\u3082\u3057\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u6642\u306e\u51e6\u7406\u3060\u3051\u3092\u8a18\u8ff0\u3057\u305f\u3044\u5834\u5408\u306a\u3069\u306f\u3001\u3053\u306eunless\u6587\u3092\u4f7f\u3046\u3053\u3068\u3092\u691c\u8a0e\u3057\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u3092\u307f\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">member_type = \"premium\"\r\nunless member_type == \"normal\"\r\n  puts \"\u901a\u5e38\u4f1a\u54e1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\"\r\n  # \u30d7\u30ec\u30df\u30a2\u30e0\u4f1a\u54e1\u5411\u3051\u306e\u51e6\u7406\u304c\u7d9a\u304f\u3001\u3001\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u901a\u5e38\u4f1a\u54e1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/pre>\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u3001\u901a\u5e38\u4f1a\u54e1\u4ee5\u5916\u306e\u5834\u5408\u306f\u3001\u30bb\u30fc\u30eb\u5546\u54c1\u306e\u5024\u5f15\u984d\u3092\u5909\u66f4\u3057\u305f\u308a\u3001\u7279\u5225\u306a\u60c5\u5831\u3092\u30e1\u30fc\u30eb\u3067\u9001\u308b\u306a\u3069\u306e\u51e6\u7406\u3078\u7d9a\u3051\u308b\u305f\u3081\u306e\u6700\u521d\u306e\u5224\u5b9a\u306bunless\u3092\u6d3b\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001unless\u3067\u306felse\u3068\u4f75\u7528\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001elsif\u3068\u306f\u4f75\u7528\u3067\u304d\u305a\u3001\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3059\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">member_type = \"normal\"\r\nunless member_type == \"normal\"\r\n  puts \"\u901a\u5e38\u4f1a\u54e1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\"\r\n  # \u30d7\u30ec\u30df\u30a2\u30e0\u4f1a\u54e1\u5411\u3051\u306e\u51e6\u7406\u304c\u7d9a\u304f\u3001\u3001\r\nelse\r\n  puts \"\u901a\u5e38\u4f1a\u54e1\u3067\u3059\u3002\"      \r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u901a\u5e38\u4f1a\u54e1\u3067\u3059\u3002<\/pre>\n<p>\u305d\u3057\u3066\u3001unless\u306e\u4f7f\u3044\u65b9\u3092if\u6587\u3067\u4ee3\u7528\u3059\u308b\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306a\u66f8\u304d\u65b9\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">member_type = \"premium\"\r\nif not member_type == \"normal\"\r\n  puts \"\u901a\u5e38\u4f1a\u54e1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\"\r\n  # \u30d7\u30ec\u30df\u30a2\u30e0\u4f1a\u54e1\u5411\u3051\u306e\u51e6\u7406\u304c\u7d9a\u304f\u3001\u3001\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u901a\u5e38\u4f1a\u54e1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/pre>\n<p>unless\u306e\u7b87\u6240\u306b\u300c if not \u300d\u3068\u66f8\u304f\u3053\u3068\u3067\u540c\u69d8\u306e\u51e6\u7406\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001if not \u306felsif\u3092\u6b63\u5e38\u306b\u4f75\u7528\u3067\u304d\u308b\u70b9\u304cunelss\u3068\u7570\u306a\u308b\u3068\u3053\u308d\u3067\u3059\u3002<\/p>\n<h2>if\u6587\u306e\u5fdc\u7528<\/h2>\n<p>\u3067\u306f\u3001\u6b21\u306bif\u6587\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u3088\u308a\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>or\u6f14\u7b97\u5b50\u3067\u300cA\u3082\u3057\u304f\u306fB\u300d\u6761\u4ef6\u3092\u5b9f\u73fe\u3059\u308b<\/h3>\n<p>\u4f8b\u3048\u3070\u3001\u79fb\u52d5\u624b\u6bb5\u304c\u96fb\u8eca\u304b\u30d0\u30b9\u306e\u5834\u5408\u306f\u7d4c\u8cbb\u306e\u7cbe\u7b97\u3092\u884c\u3046\u51e6\u7406\u3092if\u6587\u3067\u5b9f\u73fe\u3059\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306bA\u304bB\u304b\u306e\u3044\u305a\u308c\u304b\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u304b\u3069\u3046\u304b\u5224\u5b9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001or \u3082\u3057\u304f\u306f || \u3068\u3044\u3046\u8a18\u53f7\u3092\u4f7f\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u53f7\u306e\u3053\u3068\u3092\u8ad6\u7406\u6f14\u7b97\u5b50\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u30b5\u30f3\u30d7\u30eb\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">transportation = \"train\"\r\nif transportation == \"train\" or transportation == \"bus\"\r\n    puts \"\u7d4c\u8cbb\u7cbe\u7b97\u306e\u5bfe\u8c61\u3067\u3059\u3002\"\r\n    # \u7d4c\u8cbb\u7cbe\u7b97\u51e6\u7406\u306b\u7d9a\u304f\r\nend\r\n\r\ntransportation_2 = \"bus\"\r\nif transportation_2 == \"train\" || transportation_2 == \"bus\"\r\n    puts \"\u7d4c\u8cbb\u7cbe\u7b97\u306e\u5bfe\u8c61\u3067\u3059\u3002\"\r\n    # \u7d4c\u8cbb\u7cbe\u7b97\u51e6\u7406\u306b\u7d9a\u304f\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u7d4c\u8cbb\u7cbe\u7b97\u306e\u5bfe\u8c61\u3067\u3059\u3002\r\n\u7d4c\u8cbb\u7cbe\u7b97\u306e\u5bfe\u8c61\u3067\u3059\u3002<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b<b>\u8907\u6570\u306e\u6761\u4ef6\u3092\u5408\u308f\u305b\u3066\u4e00\u3064\u306e\u5224\u5b9a\u5f0f\u3068\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u304c\u3001\u8ad6\u7406\u6f14\u7b97\u5b50\u306e\u7279\u5fb4<\/b>\u3067\u3059\u3002<\/p>\n<h3>and\u6f14\u7b97\u5b50\u3067\u300cA\u304b\u3064B\u300d\u6761\u4ef6\u3092\u5b9f\u73fe\u3059\u308b<\/h3>\n<p>\u3067\u306f\u6b21\u306b\u3001\u4ed6\u306e\u8ad6\u7406\u6f14\u7b97\u5b50\u3068\u3057\u3066\u826f\u304f\u4f7f\u308f\u308c\u308b\u3082\u306e\u304cand\u6f14\u7b97\u5b50\u3067\u3059\u3002\u3053\u3061\u3089\u306fA\u3082B\u306e\u4e21\u65b9\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u3066\u521d\u3081\u3066\u6e80\u305f\u3059\u3068\u3044\u3046\u5224\u65ad\u306b\u306a\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \"># \u901a\u52e4\u624b\u5f53\u5bfe\u8c61\u8005\u304b\u3092\u52e4\u7d9a\u5e74\u6570\u3068\u901a\u52e4\u6642\u9593\u3067\u5224\u65ad\u3059\u308b\r\ncarrier = 5 #\u52e4\u7d9a\u5e74\u65705\u5e74\r\ncommuting_time = 2 #\u901a\u52e4\u6642\u95932\u6642\u9593\r\nif carrier &gt; 3 and commuting_time &gt; 1.5\r\n    puts \"\u901a\u52e4\u624b\u5f53\u5bfe\u8c61\u8005\u3067\u3059\u3002\"\r\n    # \u901a\u52e4\u624b\u5f53\u51e6\u7406\u306b\u7d9a\u304f\r\nend\r\n\r\n# &amp;&amp;\u3092\u4f7f\u7528\u3057\u305f\u4f8b\r\ncarrier_b = 10\r\ncommuting_time_b = 0.5\r\nif carrier_b &gt; 3 &amp;&amp; commuting_time_b &gt; 1.5\r\n    puts \"\u901a\u52e4\u624b\u5f53\u5bfe\u8c61\u8005\u3067\u3059\u3002\"\r\n    # \u901a\u52e4\u624b\u5f53\u51e6\u7406\u306b\u7d9a\u304f\r\nelse\r\n    puts \"\u5bfe\u8c61\u5916\u3067\u3059\u3002\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u901a\u52e4\u624b\u5f53\u5bfe\u8c61\u8005\u3067\u3059\u3002\r\n\u5bfe\u8c61\u5916\u3067\u3059\u3002<\/pre>\n<p>\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u3001and \u3082\u3057\u304f\u306f &amp;&amp; \u3068\u3044\u3046\u8ad6\u7406\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u300cA\u304b\u3064B\u300d\u6761\u4ef6\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>nil\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b<\/h3>\n<p>\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u304a\u3044\u3066\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8(\u30c7\u30fc\u30bf\u3084\u51e6\u7406\u5185\u5bb9\u3092\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u7bb1\u306e\u3088\u3046\u306a\u3082\u306e)\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u8868\u73fe\u3059\u308b\u70ba\u306e\u5024\u3068\u3057\u3066 nil \u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e nil \u306e\u72b6\u614b\u306a\u306e\u304b\u3069\u3046\u304b\u3092\u5224\u5b9a\u3059\u308b\u65b9\u6cd5\u304c if \u6587\u3068\u3088\u304f\u4e00\u7dd2\u306b\u5229\u7528\u3055\u308c\u308b\u306e\u3067\u3001\u3053\u3053\u3067\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \"># \u4f1a\u54e1\u3055\u3093\u306e\u500b\u4eba\u60c5\u5831\u3068\u3057\u3066\u540d\u524d\u3068\u5e74\u9f62\u304c\u914d\u5217\u30c7\u30fc\u30bf\u3068\u3057\u3066\u5b58\u5728\r\nmember_010 = { \"name\" =&gt; \"tanaka\", \"age\" =&gt; \"25\" }\r\nif member_010[\"birth\"].nil?\r\n    puts \"\u8a95\u751f\u65e5\u306b\u95a2\u3059\u308b\u30c7\u30fc\u30bf\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\"\r\nend<\/pre>\n<p># \u5b9f\u884c\u7d50\u679c<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">\u8a95\u751f\u65e5\u306b\u95a2\u3059\u308b\u30c7\u30fc\u30bf\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002<\/pre>\n<p>nil? \u3068\u3044\u3046\u7b87\u6240\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u306f\u3066\u306a\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u3001nil\u72b6\u614b\u3067\u3059\u304b\uff1f\u3068\u5224\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u305d\u306e\u7d50\u679c\u3092\u5143\u306bif\u6587\u3067\u51e6\u7406\u3092\u884c\u3046\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u5b9f\u8df5\u4f8b\u304c\u591a\u3044\u306e\u3067\u3001\u899a\u3048\u3066\u304a\u304f\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u3055\u3089\u306b\u8a73\u3057\u304fnil?\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/20752\" 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\/09\/ruby_blank-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u5165\u9580\u3011nil?empty?blank?present?\u306e\u57fa\u790e\u3068\u5fdc\u7528\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<h3>\u4e09\u9805\u6f14\u7b97\u5b50\u3092\u4f7f\u3044\uff11\u884c\u306b\u30b3\u30fc\u30c9\u3092\u307e\u3068\u3081\u308b\u65b9\u6cd5<\/h3>\n<p>\u672c\u8a18\u4e8b\u306e\u6700\u5f8c\u306b\u3001\u4e09\u9805\u6f14\u7b97\u5b50\u306a\u308b\u3082\u306e\u3092if\u6587\u3068\u95a2\u9023\u3057\u3066\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u306f\u4e09\u9805\u6f14\u7b97\u5b50\u3092\u4f7f\u3046\u3068\u3001if\u6587\u306e\u8a18\u8ff0\u5185\u5bb9\u304c\uff11\u884c\u3067\u30b9\u30c3\u30ad\u30ea\u307e\u3068\u3081\u3066\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">age = 23\r\n\r\n# \u901a\u5e38\u306eif\u6587\r\nresult = if age &lt; 20\r\n  \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\"\r\nelse\r\n  \"\u3042\u306a\u305f\u306f\u3059\u3067\u306b\u5927\u4eba\u306e\u4ef2\u9593\u5165\u308a\u3067\u3059\u3002\"\r\nend\r\nputs result\r\n\r\n# \u4e09\u9805\u6f14\u7b97\u5b50\u3067\u66f8\u3044\u305f\u5834\u5408\r\n\r\n\r\nresult_b = age &lt; 20 ? \"\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\" : \"\u3042\u306a\u305f\u306f\u3059\u3067\u306b\u5927\u4eba\u306e\u4ef2\u9593\u5165\u308a\u3067\u3059\u3002\" # 1\u884c\u306b\u307e\u3068\u307e\u308b\r\nputs result_b<\/pre>\n<p>\u305f\u3060\u3057\u3001\u4eca\u56de\u306f\u201d\u3042\u306a\u305f\u306f\u672a\u6210\u5e74\u3067\u3059\u3002\u201d\u306a\u3069\u51e6\u7406\u7d50\u679c\u304c\u77ed\u3044\u6587\u5b57\u5217\u3092\u51fa\u3059\u3060\u3051\u306e\u5834\u5408\u3067\u3042\u308c\u3070\u3001\u4e09\u9805\u6f14\u7b97\u5b50\u3067\u898b\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u51e6\u7406\u7d50\u679c\u304c\u8907\u96d1\u306a\u3082\u306e\u306e\u5834\u5408\u306f\u3001if\u6587\u3092\u5229\u7528\u3057\u305f\u307b\u3046\u304c\u8aad\u307f\u3084\u3059\u3044\u30d7\u30ed\u30b0\u30e9\u30e0\u30b3\u30fc\u30c9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e09\u9805\u6f14\u7b97\u5b50\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u307f\u308b\u306e\u3082\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/11846\" 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\/2016\/11\/ruby-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010\u8131Ruby\u521d\u5fc3\u8005\uff01\u3011\u3055\u307e\u3056\u307e\u306a\u6f14\u7b97\u5b50\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>\u307e\u3068\u3081<\/h2>\n<p>\u4eca\u56de\u306fruby\u306eif\u6587\u306b\u3064\u3044\u3066\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u4e00\u6c17\u306b\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>if\u6587\u306b\u306f\u6761\u4ef6\u304c\u3044\u304f\u3064\u5fc5\u8981\u306a\u306e\u304b\u3001\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u3082\u5fc5\u8981\u306a\u306e\u304b\u3001\u3082\u3057\u304f\u306f\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u3053\u3068\u3092\u671f\u5f85\u3057\u305f\u51e6\u7406\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b\u3001\u306a\u3069\u69d8\u3005\u306a\u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc\u3059\u308b\u69cb\u6587\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>if else \u3084 elsif \u305d\u3057\u3066\u3001unless\u3084 if not\u306a\u3069\u95a2\u9023\u3059\u308b\u6761\u4ef6\u5224\u65ad\u306e\u66f8\u304d\u65b9\u306f\u8272\u3005\u3068\u3042\u308a\u307e\u3059\u304c\u3001\u3072\u3068\u3064\u3072\u3068\u3064\u5b9f\u969b\u306b\u81ea\u5206\u306e\u624b\u3067\u52d5\u304b\u3057\u3066\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u304c\u30de\u30b9\u30bf\u30fc\u3078\u306e\u8fd1\u9053\u3067\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001\u305c\u3072\u672c\u8a18\u4e8b\u3092\u30d6\u30c3\u30af\u30de\u30fc\u30af\u3057\u3066\u3001if\u6587\u306e\u4f7f\u3044\u65b9\u3092\u5fd8\u308c\u305f\u6642\u306f\u3059\u3050\u306b\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3053\u3068\u3092\u30aa\u30b9\u30b9\u30e1\u3057\u307e\u3059\u3002\u3082\u3057\u4eca\u5f8c\u3001if\u6587\u306b\u95a2\u3057\u3066\u8ff7\u3046\u3053\u3068\u304c\u3042\u308c\u3070\u3001\u305c\u3072\u3053\u306e\u8a18\u4e8b\u3092\u601d\u3044\u51fa\u3057\u3066\u4e0b\u3055\u3044\u306d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\uff01\u3000\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u306e\u6843\u592a\u90ce\u3067\u3059\u3002 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