{"id":4184,"date":"2018-06-16T00:52:13","date_gmt":"2018-06-15T15:52:13","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=4184"},"modified":"2023-05-27T22:36:31","modified_gmt":"2023-05-27T13:36:31","slug":"%e3%80%90ruby%e3%80%91%e3%80%8c%e3%82%b7%e3%83%b3%e3%83%9c%e3%83%ab%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=4184","title":{"rendered":"\u3010Ruby\u3011\u300c\u30b7\u30f3\u30dc\u30eb\u300d\u3001\u300c\u30cf\u30c3\u30b7\u30e5\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"<h2>\u30b7\u30f3\u30dc\u30eb\u3068\u306f\uff1f<\/h2>\n<p>\u57fa\u672c\u7684\u306b\u306f\u6587\u5b57\u5217\u3068\u540c\u3058\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u304c\u3001\u5c11\u3057\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30b7\u30f3\u30dc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n<ul>\n<li><span style=\"color: #ff0000;\"><strong>Ruby\u306e\u5185\u90e8\u3067\u3001\u300c\u6574\u6570\u300d\u3068\u3057\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u6587\u5b57\u5217\u306e\u5024\u304c\u540c\u3058\u304b\u3069\u3046\u304b\u901a\u5e38\u306e\u6587\u5b57\u5217\u306b\u6bd4\u3079\u308b\u3068\u9ad8\u901f\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002<\/strong><\/span><\/li>\n<li>\u540c\u3058\u30b7\u30f3\u30dc\u30eb\u3067\u3042\u308c\u3070\u3001\u5168\u304f\u540c\u3058\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306a\u308b\u306e\u3067\u3001\u5927\u91cf\u306e\u540c\u3058\u30b7\u30f3\u30dc\u30eb\u3092\u4f5c\u6210\u3059\u308b\u51e6\u7406\u7b49\u3067\u306f\u3001<span style=\"color: #ff0000;\"><strong>\u30e1\u30e2\u30ea\u306e\u7bc0\u7d04<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li>\u30a4\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306a\u306e\u3067\u3001<span style=\"color: #ff0000;\"><strong>\u6587\u5b57\u5217\u306e\u3088\u3046\u306b\u5024\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u306e\u3067\u3001<\/strong><\/span>\u52dd\u624b\u306b\u5024\u3092\u5909\u66f4\u3055\u308c\u305f\u304f\u306a\u3044\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5834\u5408\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30b7\u30f3\u30dc\u30eb\u306e\u7279\u5fb4<\/h2>\n<p>Symbol\u30af\u30e9\u30b9\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/p>\n<h2>\u30b7\u30f3\u30dc\u30eb\u306e\u7528\u9014<\/h2>\n<p>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u4e0a\u3067\u3001\u540d\u524d\u3092\u8b58\u5225\u3057\u305f\u3044\u304c\u3001\u305d\u306e\u540d\u524d\u304c\u5fc5\u305a\u3057\u3082\u6587\u5b57\u5217\u3067\u3042\u308b\u5fc5\u8981\u304c\u306a\u3044\u5834\u5408\u306b\u4f7f\u3046\u3002<\/p>\n<h3>\u4ee3\u8868\u7684\u306a\u30b7\u30f3\u30dc\u30eb\u306e\u5229\u7528\u4f8b<\/h3>\n<h4>\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc<\/h4>\n<p>\u6587\u5b57\u5217\u3092\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u306b\u3059\u308b\u3088\u308a\u3082<span style=\"color: #ff0000;\"><strong>\u30b7\u30f3\u30dc\u30eb\u3092\u30ad\u30fc\u306b\u3057\u305f\u65b9\u304c\u9ad8\u901f\u306b\u5024\u3092\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h4>\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570<\/h4>\n<pre class=\"lang:default decode:true\">def \u30e1\u30bd\u30c3\u30c9\u540d(\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u65701: \u30c7\u30d5\u30a9\u30eb\u30c8\u50241,\u30ad\u30fc\u30ef\u30fc\u30c9\u5f15\u65702: \u30c7\u30d5\u30a9\u30eb\u30c8\u50242)\r\n  #\u51e6\u7406\u5185\u5bb9\r\nend<\/pre>\n<p>\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u306b\u30b7\u30f3\u30dc\u30eb\u3092\u4f7f\u3046\u3053\u3068\u3067<span style=\"color: #ff0000;\"><strong>\u5f15\u6570\u306e\u7528\u9014\u304c\u660e\u78ba\u306b\u306a\u308a\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u53ef\u8aad\u6027\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h4>Rails\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf<\/h4>\n<h2>\u30b7\u30f3\u30dc\u30eb\u306e\u4f7f\u3044\u65b9<\/h2>\n<h3>\u66f8\u304d\u65b9<\/h3>\n<pre class=\"lang:default decode:true\">:\u30b7\u30f3\u30dc\u30eb\u540d<\/pre>\n<h2>\u30cf\u30c3\u30b7\u30e5\u3068\u306f\uff1f<\/h2>\n<p>\u300c\u30ad\u30fc\u300d\u3068\u300c\u5024\u300d\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u7ba1\u7406\u3059\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3059\u3002\uff08Java\u3067\u8a00\u3046\u3068\u3053\u308d\u306eMap\u3067\u3059\u306d\u3002\uff09<\/p>\n<h2>\u914d\u5217\u3068\u306e\u4f7f\u3044\u5206\u3051<\/h2>\n<p>\u30cf\u30c3\u30b7\u30e5\u306e\u4fdd\u6301\u3059\u308b\u5024\u306f\u30c7\u30fc\u30bf\u578b\u306f\u7570\u306a\u308b\u30c7\u30fc\u30bf\u578b\u3067\u3082\u69cb\u3044\u307e\u305b\u3093\u3002\uff08\u300c\u6587\u5b57\u300d\u3068\u300c\u6570\u5b57\u300d\u3084\u300c\u914d\u5217\u300d\u3092\u6df7\u5728\u3055\u305b\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\uff09<span style=\"color: #ff0000;\"><strong>\u914d\u5217\u3068\u9055\u3063\u3066\u610f\u5473\u306e\u3042\u308b\u307e\u3068\u307e\u308a\u306e\u3088\u3046\u306a\u30c7\u30fc\u30bf\uff08HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u30c7\u30fc\u30bf\u7b49\uff09\u3092\u4fdd\u6301\u3059\u308b\u5834\u5408<\/strong><\/span>\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30cf\u30c3\u30b7\u30e5\u306e\u4f7f\u3044\u65b9<\/h2>\n<h3>\u57fa\u672c<\/h3>\n<h4>\u66f8\u304d\u65b9\uff11<\/h4>\n<p>\u5f93\u6765\u306e\u8a18\u8ff0\u65b9\u6cd5\u3001\u30ad\u30fc\u304c\u30b7\u30f3\u30dc\u30eb\u306b\u306a\u3089\u306a\u3044\u3002<\/p>\n<pre class=\"lang:default decode:true\">\u30cf\u30c3\u30b7\u30e5\u5909\u6570 = {'\u30ad\u30fc1'=&gt;'\u50241','\u30ad\u30fc2'=&gt;'\u50242','\u30ad\u30fc3'=&gt;'\u50243'}<\/pre>\n<h5>\u4f8b<\/h5>\n<pre class=\"lang:default decode:true\">countrylang = {'japan'=&gt;'Japanese','chana'=&gt;'Chinese','Korea'=&gt;'Korean'}<\/pre>\n<p>\u30ad\u30fc\u3092\u30b7\u30f3\u30dc\u30eb\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3059\u308b\u3002<\/p>\n<pre class=\"lang:default decode:true\">\u30cf\u30c3\u30b7\u30e5\u5909\u6570 = {:\u30ad\u30fc1=&gt;'\u50241',:\u30ad\u30fc2=&gt;'\u50242',:\u30ad\u30fc3=&gt;'\u50243'}<\/pre>\n<h4>\u66f8\u304d\u65b92<\/h4>\n<p>Ruby1.9\u3067\u8ffd\u52a0\u3055\u308c\u305f\u3002\u30cf\u30c3\u30b7\u30e5\u30ea\u30c6\u30e9\u30eb\u306e\u8a18\u8ff0\u65b9\u6cd5\u3002\u3053\u306e\u66f8\u304d\u65b9\u306f\u30ad\u30fc\u304c\u81ea\u52d5\u7684\u306b<span style=\"color: #ff0000;\"><strong>\u30b7\u30f3\u30dc\u30eb<\/strong><\/span>\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"lang:default decode:true\">{\u30ad\u30fc1:'\u50241',\u30ad\u30fc2:'\u50242',\u30ad\u30fc3:'\u50243'}<\/pre>\n<h4>\u66f8\u304d\u65b93<\/h4>\n<p>Ruby2.2\u304b\u3089\u8ffd\u52a0\u3055\u308c\u305f\u66f8\u304d\u65b9\u3002\u3053\u306e\u66f8\u304d\u65b9\u3082\u30ad\u30fc\u304c\u81ea\u52d5\u7684\u306b<span style=\"color: #ff0000;\"><strong>\u30b7\u30f3\u30dc\u30eb<\/strong><\/span>\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"lang:default decode:true\">{'\u30ad\u30fc1':'\u50241','\u30ad\u30fc2':'\u50242','\u30ad\u30fc3':'\u50243'}<\/pre>\n<h4>\u66f8\u304d\u65b94<\/h4>\n<p>Hash\u30af\u30e9\u30b9\u306e\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9 \u3092\u4f7f\u3063\u3066\u8a18\u8ff0\u3059\u308b\u65b9\u6cd5\u3001\u3053\u308c\u3082\u30ad\u30fc\u304c\u30b7\u30f3\u30dc\u30eb\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"lang:default decode:true\">Hash[:a,1,:b,2,:c,3]<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u3092\u7e70\u308a\u8fd4\u3057\u51e6\u7406\u3092\u3055\u305b\u308b<\/h3>\n<h4>\u66f8\u304d\u65b9<\/h4>\n<pre class=\"lang:default decode:true\">countrylang.each do |\u30d6\u30ed\u30c3\u30af\u5f15\u65701,\u30d6\u30ed\u30c3\u30af\u5f15\u65702|\r\nend<\/pre>\n<h4>\u4f8b<\/h4>\n<pre class=\"lang:default decode:true\">countrylang = {'japan'=&gt;'Japanese','chana'=&gt;'Chinese','Korea'=&gt;'Korean'}\r\n\r\ncountrylang.each do |key,value|\r\n        puts \"#{key}:#{value}\"\r\nend<\/pre>\n<h4>\u5b9f\u884c\u7d50\u679c<\/h4>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-4176\" src=\"http:\/\/www.code-magagine.com\/wp-content\/uploads\/2018\/06\/\u5b9f\u884c\u7d50\u679c_\u30cf\u30c3\u30b7\u30e5.png\" alt=\"\" width=\"314\" height=\"89\" srcset=\"http:\/\/www.code-magagine.com\/wp-content\/uploads\/2018\/06\/\u5b9f\u884c\u7d50\u679c_\u30cf\u30c3\u30b7\u30e5.png 314w, http:\/\/www.code-magagine.com\/wp-content\/uploads\/2018\/06\/\u5b9f\u884c\u7d50\u679c_\u30cf\u30c3\u30b7\u30e5-300x85.png 300w\" sizes=\"(max-width: 314px) 100vw, 314px\" \/><\/p>\n<h3>\u30cf\u30c3\u30b7\u30e5\u304b\u3089\u5024\u3092\u524a\u9664\u3059\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true\">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.delete('\u30ad\u30fc')<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u304b\u3089\u5024\u3092\u53d6\u308a\u51fa\u3059\u3002<\/h3>\n<pre class=\"lang:default decode:true\">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8[\u30ad\u30fc]<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u306b\u5024\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true \">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8[\u30ad\u30fc]\u3000= \u5024<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u304c\u6301\u3063\u3066\u3044\u308b\u30ad\u30fc\u306e\u4e00\u89a7\u3092\u77e5\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true\">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.keys<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u304c\u6301\u3063\u3066\u3044\u308b\u30d0\u30ea\u30e5\u30fc\u306e\u4e00\u89a7\u3092\u77e5\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true \">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.values<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u304c\u6307\u5b9a\u3057\u305f\u30ad\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true \">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.has_key?(\u30ad\u30fc\u540d)<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u306e\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u308b\u3002<\/h3>\n<pre class=\"lang:default decode:true \">\u30cf\u30c3\u30b7\u30e5\u30aa\u30d6\u30b8\u30a7\u30af\u30c8.size<\/pre>\n<h3>\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u306b\u30b7\u30f3\u30dc\u30eb\u3092\u4f7f\u3046\u3002<\/h3>\n<p>\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u306f\u3001\u6587\u5b57\u5217\u3092\u4f7f\u3046\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u304c\u3001<span style=\"color: #ff0000;\"><strong>\u6587\u5b57\u5217\u3088\u308a\u3082\u9ad8\u901f\u306b\u51e6\u7406\u3067\u304d\u308b\u30b7\u30f3\u30dc\u30eb\u304c\u671b\u307e\u3057\u3044<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u30cf\u30c3\u30b7\u30e5\u306e\u30ad\u30fc\u306b\u5bfe\u3057\u3066\u3001<span style=\"color: #ff0000;\"><strong>\u30b7\u30f3\u30dc\u30eb<\/strong><\/span>\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u969b\u306e\u66f8\u304d\u65b9\u3068\u3057\u3066\u306f\u3001<span style=\"color: #ff0000;\"><strong>\u300c=&gt;\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u30b7\u30f3\u30dc\u30eb\uff1a'\u5024'\u300d\u3068\u3044\u3046\u66f8\u304d\u65b9<\/strong><\/span>\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h4>\u5b9f\u88c5\u4f8b<\/h4>\n<pre class=\"lang:default decode:true \">countrylang = {japan: 'Japanese',chana: 'Chinese',korea: 'Korean'}\r\n\r\nputs countrylang[:japan]<\/pre>\n","protected":false},"excerpt":{"rendered":"\u30b7\u30f3\u30dc\u30eb\u3068\u306f\uff1f \u57fa\u672c\u7684\u306b\u306f\u6587\u5b57\u5217\u3068\u540c\u3058\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u304c\u3001\u5c11\u3057\u7570\u306a\u308a\u307e\u3059\u3002 \u30b7\u30f3\u30dc\u30eb\u306e\u30e1\u30ea\u30c3\u30c8 Ruby\u306e\u5185\u90e8\u3067\u3001\u300c\u6574\u6570\u300d\u3068\u3057\u3066\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u6587\u5b57\u5217\u306e\u5024\u304c\u540c\u3058\u304b\u3069\u3046\u304b\u901a\u5e38\u306e\u6587\u5b57\u5217\u306b\u6bd4\u3079\u308b\u3068\u9ad8\u901f\u306b\u51e6\u7406\u3067\u304d\u307e\u3059\u3002 \u540c\u3058\u30b7 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