\n\t| [\u6587\u5b57,\u6587\u5b57]<\/td> | \u30ab\u30c3\u30b3\u5185\u306e\u6587\u5b57\u306e\u3044\u305a\u308c\u304b\uff11\u6587\u5b57<\/td> | [a,b,c]<\/td> | a,b,c<\/td> | d,e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n \u6b21\u306b\u5229\u7528\u983b\u5ea6\u306e\u9ad8\u3044\u30e1\u30bf\u6587\u5b57\u306e\u4f7f\u7528\u4f8b\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u306e\u8868\u73fe<\/h3>\n0\u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057\u3067\u306f”*”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"bbb\"\r\np string.gsub(\/a*b\/, \"morning \")\r\n=> \"morning morning morning\"\r\n\r\nstring = \"abbbabbaaaaab\"\r\np string.gsub(\/a*b\/, \"morning \")\r\n=> \"morning morning morning morning morning morning \"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n b\r\nab\r\naab<\/pre>\n0\u56de\u4ee5\u4e0a\u3068\u3044\u3046\u3053\u3068\u306fa\u304c\u3042\u3063\u3066\u3082\u306a\u304f\u3066\u3082\u3044\u3044\u306e\u3067b\u3067\u3082\u4e00\u81f4\u3059\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n 1\u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057\u3067\u306f”+”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"bbb\"\r\np string.gsub(\/a+b\/, \"morning \")\r\n=> \"bbb\"\r\n\r\nstring = \"abbbabbaaaaa\"\r\np string.gsub(\/a+b\/, \"morning \")\r\n=> \"morning bbmorning baaaaa\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n ab\r\naab\r\naaab<\/pre>\n1\u56de\u4ee5\u4e0a\u306a\u306e\u3067\u3001b\u3060\u3051\u3067\u306f\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u56de\u6570\u304c0\u56de\u304b1\u56de\u306e\u3068\u304d\u306f”?”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"bbb\"\r\np string.gsub(\/a?b\/, \"morning \")\r\n=> \"morning morning morning \"\r\n\r\nstring = \"aab\"\r\np string.gsub(\/a?b\/, \"morning \")\r\n=> \"amorning \"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n b\r\nab<\/pre>\n0,1\u56de\u306a\u306e\u3067\u3001aaab\u306a\u3069\u306f\u4e00\u81f4\u3057\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u56de\u6570\u304c\u3061\u3087\u3046\u3069n\u56de\u306e\u3068\u304d\u306f{n}\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"bbb\"\r\np string.gsub(\/b{3}\/, \"morning \")\r\n=> \"morning \"\r\n\r\nstring = \"bb\"\r\np string.gsub(\/b{3}\/, \"morning \")\r\n=> \"bb\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n bbb<\/pre>\n\u3053\u306e\u3088\u3046\u306b\u3001\u3061\u3087\u3046\u3069bbb\u304c3\u56de\u306e\u3068\u304d\u3057\u304b\u30de\u30c3\u30c1\u3057\u307e\u305b\u3093\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u56de\u6570\u304cn\u56de\u4ee5\u4e0a\u306e\u3068\u304d\u306f{n,}\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"bbb\"\r\np string.gsub(\/b{2,}\/, \"morning \")\r\n=> \"morning \"\r\n\r\nstring = \"bb\"\r\np string.gsub(\/b{2,}\/, \"morning \")\r\n=> \"morning \"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n bb\r\nbbb\r\nbbbb\r\nbbbbb<\/pre>\n\u4ee5\u4e0a\u306a\u306e\u3067\u3001\u969b\u9650\u306a\u304f\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u56de\u6570\u304cn\u56de\u4ee5\u4e0b\u306e\u3068\u304d\u306f{,n}\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"abbb\"\r\np string.gsub(\/ab{,2}\/, \"morning \")\r\n=> \"morning b\"\r\n\r\nstring = \"a\"\r\np string.gsub(\/ab{,2}\/, \"morning \")\r\n=> \"morning \"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n a\r\nab\r\nabb<\/pre>\nn\u56de\u4ee5\u4e0b\u306a\u306e\u3067\u3001b\u304c\u6d88\u3048\u3066a\u3060\u3051\u306e\u3068\u304d\u3082\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u7e70\u308a\u8fd4\u3057\u56de\u6570\u304cn\u56de\u4ee5\u4e0a\u3001m\u56de\u4ee5\u4e0b\u306e\u3068\u304d\u306f{n,m}\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"xxxxabxxx\"\r\np string.gsub(\/ab{1,2}\/, \"morning\")\r\n=> \"xxxxmorningxxx\"\r\n\r\nstring = \"xxxxabbbxxxx\"\r\np string.gsub(\/ab{1,2}\/, \"morning\")\r\n=> \"xxxxmorningbxxxx\"\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n ab\r\nabb<\/pre>\n1\u56de\u304b2\u56de\u306e\u3069\u3061\u3089\u3082\u30de\u30c3\u30c1\u3059\u308b\u3068\u304d\u306f\u6700\u5927\u5024\u306e2\u3067\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u6587\u5b57\u30af\u30e9\u30b9\u306e\u7701\u7565\u8a18\u6cd5<\/h3>\na-z\u3001A-Z\u30010-9\u306e\u3046\u3061\u306e\u3044\u305a\u308c\u304b1\u6587\u5b57\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\u306fw\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n string = \"9a\"\r\np string.gsub(\/wa\/, \"morning\")\r\n=> \"morning\"\r\n\r\nstring = \"Za\"\r\np string.gsub(\/wa\/, \"morning\")\r\n=> \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n 2a\r\n0a\r\nja\r\nia\r\nOa<\/pre>\n\u8981\u3059\u308b\u306b\u82f1\u6570\u5b57\u306f\u3059\u3079\u3066\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u53cd\u5bfe\u306ba-z\u3001A-Z\u30010-9\u306e\u3046\u3061\u306e\u3044\u305a\u308c\u306e1\u6587\u5b57\u306b\u3082\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306fW\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n string = \"\u6691a\"\r\np string.gsub(\/Wa\/, \"morning\")\r\n=> \"morning\"\r\n\r\nstring = \"na\"\r\np string.gsub(\/Wa\/, \"morning\")\r\n=> \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n n\r\nf\r\n\u611f\r\n\u7c73<\/pre>\n\u3053\u306e\u3088\u3046\u306b\u3001\u82f1\u6570\u5b57\u4ee5\u5916\u306f\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u7a7a\u767d\u6587\u5b57\u306bf,n,r,t\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\u306fs\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n string = \"ra\"\r\np string.gsub(\/sa\/, \"morning\")\r\n=> \"morning\"\r\n\r\nstring = \"na\"\r\np string.gsub(\/sa\/, \"morning\")\r\n=> \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n n\r\nf\r\nn\r\nr<\/pre>\n\u53cd\u5bfe\u306b\u7a7a\u767d\u6587\u5b57\u306bf,n,r,t\u306b\u4e00\u81f4\u3057\u306a\u3044\u5834\u5408\u306fS\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n string = \"Aa\"\r\np string.gsub(\/Sa\/, \"morning\")\r\n=> \"morning\"\r\n\r\nstring = \"0a\"\r\np string.gsub(\/Sa\/, \"morning\")\r\n=> \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n A\r\ns\r\n0\r\nK<\/pre>\n10\u9032\u6570\u306e\u6570\u5b57\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\u306f”d”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"Aa\"\r\np string.gsub(\/da\/, \"morning\")\r\n=> \"Aa\"\r\n\r\nstring = \"0323-3238-3232\"\r\np string.gsub(\/d{4}\/, \"morning\")\r\n=> \"morning-morning-morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n 3\r\n4\r\n0<\/pre>\n10\u9032\u6570\u306e\u6570\u5b57\u4ee5\u5916\u306b\u4e00\u81f4\u3059\u308b\u5834\u5408\u306f”D”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"#a\"\r\np string.gsub(\/Da\/, \"morning\")\r\n=> \"morning\"\r\n\r\nstring = \"9a\"\r\np string.gsub(\/Da\/, \"morning\")\r\n=> \"9a\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n j\r\ni\r\n#<\/pre>\n\u8981\u3059\u308b\u306b\u3001\u6570\u5b57\u4ee5\u5916\u306f\u306a\u3093\u3067\u3082\u30de\u30c3\u30c1\u3057\u307e\u3059\u3002<\/p>\n \u6587\u5b57\u5217\u306e\u884c\u982d\u3001\u884c\u672b\u3001\u5148\u982d\u3001\u672b\u5c3e\u3067\u6307\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n\u30e1\u30bf\u6587\u5b57\u5217\u3067\u306f\u6587\u5b57\u5217\u306e\u4f4d\u7f6e\u3092\u8003\u616e\u3057\u3066\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u5224\u5b9a<\/b>\u3067\u304d\u307e\u3059\u3002\u884c\u982d\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f”^”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u884c\u982d\u306f\u5148\u982d\u3068\u306f\u9055\u3044\u3001n\u3067\u6539\u884c\u3055\u308c\u305f\u3042\u3068\u306e\u5148\u982d\u3082\u542b\u3081\u308b\u306e\u30671\u3064\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\nstring = \"bbbnbbb\"\r\np string.gsub(\/^bbb\/, \"morning\")\r\n=> \"morningn\" + \"morning\"\r\n\r\nstring = \"bbbnbbbnbbb\"\r\np string.gsub(\/^bbb\/, \"morning\")\r\n=> \"morningn\" + \"morningn\" + \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n \u884c\u982d\u306ebbb<\/pre>\n\u884c\u672b\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f”$”\u3092\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"aaabbbnbbbaaa\"\r\np string.gsub(\/bbb$\/, \"morning\")\r\n=> \"aaamorningn\" + \"bbbaaa\"\r\n\r\nstring = \"aaabbbnaaabbbnbbbz\"\r\np string.gsub(\/bbb$\/, \"morning\")\r\n=> \"aaamorningn\" + \"aaamorningn\" + \"bbbz\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n \u884c\u672b\u306e\u306ebbb<\/pre>\n\u5148\u982d\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f”A”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"aaabbbnaaabbb\"\r\np string.gsub(\/Aaaa\/, \"morning\")\r\n=> \"morningbbbn\" + \"aaabbb\"\r\n\r\nstring = \"bbbbbnbbbbbnbbbz\"\r\np string.gsub(\/Abb\/, \"morning\")\r\n=> \"morningbbbn\" + \"bbbbbn\" + \"bbbz\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n \u5148\u982d\u306eaaa<\/pre>\n\u6539\u884c\u5f8c\u306eaaa\u306f\u542b\u307e\u308c\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n \u672b\u5c3e\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408\u306f”z”\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n string = \"aaabbbnaaabbb\"\r\np string.gsub(\/bbbz\/, \"morning\")\r\n=> \"aaabbbn\" + \"aaamorning\"\r\n\r\nstring = \"bbbbbnbbbbbnbbb\"\r\np string.gsub(\/bbbz\/, \"morning\")\r\n=> \"bbbbbn\" + \"bbbbbn\" + \"morning\"<\/pre>\n\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217<\/p>\n \u672b\u5c3e\u306ebbb<\/pre>\n\u6b63\u898f\u8868\u73fe\u65e9\u898b\u8868<\/h2>\n\u6b63\u898f\u8868\u73fe\u306f\u666e\u6bb5\u304b\u3089\u4f7f\u3044\u6163\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u4f7f\u3044\u65b9\u3092\u5fd8\u308c\u3066\u3057\u307e\u3044\u304c\u3061\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3067\u306fRuby\u3067\u4f7f\u7528\u3067\u304d\u308b\u6b63\u898f\u8868\u73fe\u306e\u6587\u6cd5\u3092\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff01
\n \n \n \n \n ![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/10\/eyecatch_template-22-150x86.jpg\") \n <\/div>\n \n \u5fd8\u308c\u305f\u3089\u8aad\u307f\u305f\u3044Ruby\u6b63\u898f\u8868\u73fe\u306e\u6587\u6cd5\u65e9\u898b\u8868<\/div>\n \u66f4\u65b0\u65e5\uff1a2021\u5e7411\u670819\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n <\/p>\n \u307e\u3068\u3081<\/h2>\n\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u6b63\u898f\u8868\u73fe\u306e\u4f7f\u3044\u65b9\u3092\u3064\u3044\u3066\u3001
\n <\/p>\n \n- \u305d\u3082\u305d\u3082\u6b63\u898f\u8868\u73fe\u3068\u306f\uff1f<\/b><\/li>\n
- \u6b63\u898f\u8868\u73fe\u306e\u30d1\u30bf\u30fc\u30f3\u4e00\u89a7<\/b><\/li>\n
- \u6b63\u898f\u8868\u73fe\u3067\u6587\u5b57\u5217\u306a\u3069\u306e\u62bd\u51fa\u3092\u884c\u3046\u306b\u306f\uff1f<\/b><\/li>\n
- \u6b63\u898f\u8868\u73fe\u3067\u7f6e\u63db\u51e6\u7406\u3092\u884c\u3046\u306b\u306f\uff1f<\/b><\/li>\n<\/ul>\n
<\/div>
\n\u306a\u3069\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002\u8aac\u660e\u3057\u305f\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c8\u3092\u4f7f\u3044\u3053\u306a\u305b\u3070\u3001\u7684\u78ba\u306b\u6587\u5b57\u5217\u3092\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30e1\u30bf\u6587\u5b57\u5217\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3048\u3070\u601d\u3044\u901a\u308a\u306b\u6587\u5b57\u5217\u3092\u30de\u30c3\u30c1\u3055\u305b\u3089\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n \u6b63\u898f\u8868\u73fe\u3092\u899a\u3048\u308b\u306b\u306f\u81ea\u5206\u3067\u3055\u307e\u3056\u307e\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u4f5c\u6210\u3059\u308b\u306e\u304c\u4e00\u756a\u306e\u8fd1\u9053\u306a\u306e\u3067\u3001\u72ec\u81ea\u306e\u8868\u73fe\u3092\u305f\u304f\u3055\u3093\u4f5c\u6210\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3082\u3057\u6b63\u898f\u8868\u73fe\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3053\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n","protected":false},"excerpt":{"rendered":" Ruby\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u521d\u5fc3\u8005\u306b\u3068\u3063\u3066\u3001\u6b63\u898f\u8868\u73fe\u306e\u4f7f\u3044\u65b9\u304c\u3044\u307e\u3044\u3061\u3088\u304f\u308f\u304b\u3089\u306a\u3044\u3068\u611f\u3058\u3066\u3044\u308b\u4eba\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\uff1f 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