{"id":8839,"date":"2025-02-21T21:26:33","date_gmt":"2025-02-21T12:26:33","guid":{"rendered":"https:\/\/techmania.jp\/blog\/?p=8839"},"modified":"2025-02-21T21:26:35","modified_gmt":"2025-02-21T12:26:35","slug":"csharp-regex","status":"publish","type":"post","link":"https:\/\/techmania.jp\/blog\/csharp-regex\/","title":{"rendered":"\u3010C#\u5165\u9580\u3011\u6b63\u898f\u8868\u73fe\u3067\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u691c\u7d22\u30fb\u62bd\u51fa\u30fb\u7f6e\u63db\u3059\u308b"},"content":{"rendered":"\n<p>C#\u3067\u306f\u3001\u6587\u5b57\u5217\u3092\u691c\u7d22\u3059\u308b\u65b9\u6cd5\u306e\u4e00\u3064\u306b\u300c\u6b63\u898f\u8868\u73fe\u300d\u3068\u3044\u3046\u3082\u306e\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b63\u898f\u8868\u73fe\u3092\u7528\u3044\u308b\u3068\u3001\u6587\u5b57\u5217\u306e\u691c\u7d22\u306a\u3069\u3092\u3059\u308b\u969b\u306b\u5b8c\u5168\u4e00\u81f4\u3059\u308b\u3082\u306e\u3060\u3051\u3067\u306a\u304f\u3001\u4e00\u5b9a\u306e\u30d1\u30bf\u30fc\u30f3\u306b\u5408\u81f4\u3059\u308b\u6587\u5b57\u5217\u5168\u3066\u3092\u691c\u7d22\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u308a\u3068\u975e\u5e38\u306b\u4fbf\u5229\u306a\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u6b63\u898f\u8868\u73fe\u306e\u5177\u4f53\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\uff01<\/p>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\">\u6b63\u898f\u8868\u73fe\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>\u6b63\u898f\u8868\u73fe\u3068\u306f\u3001\u6587\u5b57\u5217\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7279\u5b9a\u306e\u5f62\u5f0f\u306b\u307e\u3068\u3081\u308b\u305f\u3081\u306e\u8868\u73fe\u65b9\u6cd5\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4efb\u610f\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u6587\u5b57\u5217\u304c\u30de\u30c3\u30c1\u3059\u308b\u304b\u3092\u5224\u5b9a\u3057\u305f\u308a\u3001\u6587\u5b57\u5217\u306e\u62bd\u51fa\u3084\u7f6e\u63db\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306b\u6b63\u898f\u8868\u73fe\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u67d4\u8edf\u306a\u691c\u7d22\u30fb\u7f6e\u63db\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>C#\u306e\u6b63\u898f\u8868\u73fe\u3067\u306f\u3001\u30e1\u30bf\u6587\u5b57\u3068\u547c\u3070\u308c\u308b\u7279\u6b8a\u6587\u5b57\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u6587\u5b57\u5217\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u8868\u73fe\u3057\u307e\u3059\u3002<br>\u4ee5\u4e0b\u306f\u3001\u4ee3\u8868\u7684\u306a\u30e1\u30bf\u6587\u5b57\u306e\u4e00\u89a7\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u6587\u5b57\u30af\u30e9\u30b9\u3011<\/strong>\u2026\u6307\u5b9a\u3057\u305f\u3044\u305a\u308c\u304b\u306e\u6587\u5b57\u304c\u542b\u307e\u308c\u308b\u3068\u4e00\u81f4\u3068\u898b\u306a\u3059\u6587\u5b57\u30bb\u30c3\u30c8\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<style>\n    table.referrence {\n        border: 2px solid rgb(140 140 140);\n        border-collapse: collapse;\n        table-layout: auto;\n        width: 100%\n    }\n\n    th {\n        background-color: #B8CCE4 !important;\n        color: #000 !important;\n        text-align: center !important;\n    }\n\n    th,\n    td {\n        border: 1px solid rgb(160 160 160) !important;\n        padding: 1%;\n        background: #FFF\n    }\n\n    td:nth-last-child(n+2) {\n        text-align: center;\n    }\n<\/style>\n<table class=\"referrence\">\n    <thead>\n        <tr>\n            <th style=\"min-width: 10rem\">\u6587\u5b57\u30af\u30e9\u30b9<\/th>\n            <th>\u8aac\u660e<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>[ ]<\/td>\n            <td>[ ]\u5185\u306e\u3044\u305a\u308c\u304b1\u6587\u5b57\u3002[abc]\u306a\u3089\u3070\u3001a\u304bb\u304bc\u306e\u3069\u308c\u304b\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>[^ ]<\/td>\n            <td>[ ]\u5185\u306e\u6587\u5b57\u4ee5\u5916\u3002[^abc]\u306a\u3089\u3070\u3001a\u304bb\u304bc\u4ee5\u5916\u306e\u3069\u308c\u304b\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>[ &#8211; ]<\/td>\n            <td>\u9023\u7d9a\u3059\u308b\u6587\u5b57\u7bc4\u56f2\u306e\u3044\u305a\u308c\u304b1\u6587\u5b57\u3002[0-9]\u306a\u3089\u3070\u6570\u5b571\u6587\u5b57\u3001[a-zA-Z]\u306a\u3089\u3070\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c81\u6587\u5b57\u306a\u3069\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>.<\/td>\n            <td>\u6539\u884c\u6587\u5b57(\\n)\u4ee5\u5916\u306e\u3044\u305a\u308c\u304b1\u6587\u5b57\u3002\uff08\u305f\u3060\u3057 [ ] \u5185\u3067\u306f\u30c9\u30c3\u30c8\u6587\u5b57\u3068\u3057\u3066\u5224\u5b9a\uff09<\/td>\n        <\/tr>\n        <tr>\n            <td>\\s<\/td>\n            <td>\u534a\u89d2\/\u5168\u89d2\u30b9\u30da\u30fc\u30b9\u6587\u5b57\u3001\u6539\u884c\u6587\u5b57\u3001\u30bf\u30d6\u6587\u5b57\u306a\u3069\u306e\u7a7a\u767d\u6587\u5b57\u3002\\S\u306e\u5834\u5408\u306f\u305d\u308c\u4ee5\u5916\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>\\w<\/td>\n            <td>\u82f1\u6570\u5b57\u3084\u3072\u3089\u304c\u306a\u3001\u30ab\u30bf\u30ab\u30ca\u3001\u6f22\u5b57\u3001\u30a2\u30f3\u30c0\u30fc\u30d0\u30fc(_)\u306a\u3069\u306e\u5358\u8a9e\u6587\u5b57\u3002\\W\u306e\u5834\u5408\u306f\u305d\u308c\u4ee5\u5916\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>\\d<\/td>\n            <td>\u5168\u89d2\u3092\u542b\u30800\u304b\u30899\u307e\u3067\u306e\u6570\u5b57\u3002\\D\u306e\u5834\u5408\u306f\u305d\u308c\u4ee5\u5916\u3002<\/td>\n        <\/tr>\n        <tr>\n            <td>\\<\/td>\n            <td>\u30a8\u30b9\u30b1\u30fc\u30d7\u6587\u5b57\u3002\u7279\u6b8a\u6587\u5b57\u3092\u901a\u5e38\u306e\u6587\u5b57\u3068\u3057\u3066\u6271\u3044\u305f\u3044\u5834\u5408\u306a\u3069\u306b\u4f7f\u7528\u3059\u308b\u3002<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n\n\n\n<p><strong>\u3010\u91cf\u6307\u5b9a\u5b50\u3011<\/strong>\u2026\u76f4\u524d\u306b\u8a18\u8ff0\u3057\u305f\u6b63\u898f\u8868\u73fe\u304c\u4f55\u56de\u7e70\u308a\u8fd4\u3059\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<table class=\"referrence\">\n    <thead>\n        <tr>\n            <th style=\"width: clamp(8rem, 8rem, 10rem)!important\">\u91cf\u6307\u5b9a\u5b50<\/th>\n            <th>\u8aac\u660e<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>*<\/td>\n            <td>0\u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057<\/td>\n        <\/tr>\n        <tr>\n            <td>+<\/td>\n            <td>1\u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057<\/td>\n        <\/tr>\n        <tr>\n            <td>?<\/td>\n            <td>0\u56de\u307e\u305f\u306f1\u56de<\/td>\n        <\/tr>\n        <tr>\n            <td>{n}<\/td>\n            <td>n\u56de\u306e\u7e70\u308a\u8fd4\u3057<\/td>\n        <\/tr>\n        <tr>\n            <td>{n, m}<\/td>\n            <td>n\u56de\u304b\u3089m\u56de\u306e\u7e70\u308a\u8fd4\u3057<\/td>\n        <\/tr>\n        <tr>\n            <td>{n, }<\/td>\n            <td>n\u56de\u4ee5\u4e0a\u306e\u7e70\u308a\u8fd4\u3057<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n\n\n\n<p><strong>\u3010\u30a2\u30f3\u30ab\u30fc(\u4f4d\u7f6e\u6307\u5b9a)\u3011<\/strong>\u2026\u5148\u982d\u3084\u672b\u5c3e\u3001\u5358\u8a9e\u5883\u754c\u306a\u3069\u3001\u6587\u5b57\u5217\u5185\u3067\u306e\u4f4d\u7f6e\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<table class=\"referrence\">\n    <thead>\n        <tr>\n            <th>\u30a2\u30f3\u30ab\u30fc<\/th>\n            <th>\u8aac\u660e<\/th>\n        <\/tr>\n    <\/thead>\n    <tbody>\n        <tr>\n            <td>^<\/td>\n            <td>\u6587\u5b57\u5217\u307e\u305f\u306f\u884c\u306e\u5148\u982d<\/td>\n        <\/tr>\n        <tr>\n            <td>$<\/td>\n            <td>\u6587\u5b57\u5217\u307e\u305f\u306f\u884c\u306e\u672b\u5c3e\uff08\u672b\u5c3e\u304c\\n\u306e\u5834\u5408\u306f\u305d\u306e\u524d\u306e\u6587\u5b57\uff09<\/td>\n        <\/tr>\n        <tr>\n            <td>\\A<\/td>\n            <td>\u6587\u5b57\u5217\u306e\u5148\u982d<\/td>\n        <\/tr>\n        <tr>\n            <td>\\z<\/td>\n            <td>\u6587\u5b57\u5217\u306e\u672b\u5c3e<\/td>\n        <\/tr>\n        <tr>\n            <td>\\Z<\/td>\n            <td>\u6587\u5b57\u5217\u306e\u672b\u5c3e\uff08\u672b\u5c3e\u304c\\n\u306e\u5834\u5408\u306f\u305d\u306e\u524d\u306e\u6587\u5b57\uff09<\/td>\n        <\/tr>\n        <tr>\n            <td>\\G<\/td>\n            <td>\u524d\u56de\u306e\u7d42\u4e86\u7b87\u6240<\/td>\n        <\/tr>\n        <tr>\n            <td>\\b<\/td>\n            <td>\u5358\u8a9e\u5883\u754c<\/td>\n        <\/tr>\n        <tr>\n            <td>\\B<\/td>\n            <td>\u5358\u8a9e\u5883\u754c\u4ee5\u5916<\/td>\n        <\/tr>\n    <\/tbody>\n<\/table>\n\n\n\n\n<p>\u3053\u308c\u3089\u306e\u30e1\u30bf\u6587\u5b57\u3092\u4f7f\u7528\u3057\u3066\u3001\u691c\u7d22\u3057\u305f\u3044\u6587\u5b57\u5217\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u8868\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\">IsMatch\u30e1\u30bd\u30c3\u30c9\u3067\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u304b\u5224\u5b9a\u3059\u308b<\/h2>\n\n\n\n<p>\u6587\u5b57\u5217\u304c\u6307\u5b9a\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u304b\u3092\u5224\u5b9a\u3059\u308b\u5834\u5408\u306f\u3001Regex\u30af\u30e9\u30b9\u306e<strong>IsMatch\u30e1\u30bd\u30c3\u30c9<\/strong>\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>IsMatch\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u691c\u7d22\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306b\u6307\u5b9a\u306e\u5185\u5bb9\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3092\u5224\u65ad\u3057\u3001\u305d\u306e\u7d50\u679c\u3092Bool\u5024\u3067\u8fd4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Regex.IsMatch(\u691c\u7d22\u5143\u306e\u6587\u5b57\u5217, \u691c\u7d22\u5185\u5bb9)<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3001\u5177\u4f53\u7684\u306a\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>using System.Text.RegularExpressions;\n\nstring str = \"12345\";\n\n\/\/ \u6570\u5b57\u306e\u307f\u306e\u6587\u5b57\u5217\u3067\u3042\u308b\u304b\u3092\u5224\u5b9a\nbool result1 = Regex.IsMatch(str, @\"^\\d+$\");\nbool result2 = Regex.IsMatch(str, @\"^&#91;0-9]+$\");\n\nConsole.WriteLine(result1);\nConsole.WriteLine(result2);<\/code><\/pre>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>True\nTrue<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u3001\u691c\u7d22\u5143\u306e\u6587\u5b57\u5217\u304c\u6570\u5b57\u306e\u307f\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u5224\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b63\u898f\u8868\u73fe\u306f2\u3064\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u8a18\u8ff0\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3069\u3061\u3089\u3082\u5f97\u3089\u308c\u308b\u7d50\u679c\u306f\u540c\u3058\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u30d1\u30bf\u30fc\u30f3\u306b\u3088\u3063\u3066\u306f\u8907\u6570\u306e\u65b9\u6cd5\u3067\u8868\u73fe\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001C#\u3067\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001@\u8a18\u53f7\u3092\u982d\u306b\u4ed8\u3051\u3066\u8a18\u8ff0\u3057\u307e\u3057\u3087\u3046\u3002@\u8a18\u53f7\u3092\u4f7f\u308f\u305a\u306b\u8a18\u8ff0\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u4f8b\u306e\u3088\u3046\u306b\u30d0\u30c3\u30af\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u30a8\u30b9\u30b1\u30fc\u30d7\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u8a18\u8ff0\u5185\u5bb9\u306b\u3088\u3063\u3066\u306f\u53ef\u8aad\u6027\u304c\u4e0b\u304c\u308b\u539f\u56e0\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u8a18\u8ff0\u4f8b\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>bool result1 = Regex.IsMatch(str, \"^\\\\d+$\"); <\/code><\/pre>\n\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\">\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u62bd\u51fa\u3059\u308b<\/h2>\n\n\n\n<p>\u7d9a\u3044\u3066\u3001\u691c\u7d22\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u62bd\u51fa\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 id=\"outline__3_1\" class=\"wp-block-heading\">Match\u30e1\u30bd\u30c3\u30c9\u3067\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3057\u305f\u6700\u521d\u306e\u90e8\u5206\u3092\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n\n<p>\u6587\u5b57\u5217\u306e\u62bd\u51fa\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306f\u3001<strong>Match\u30e1\u30bd\u30c3\u30c9<\/strong>\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u57fa\u672c\u69cb\u6587\u306f\u3001IsMatch\u30e1\u30bd\u30c3\u30c9\u306e\u6642\u3068\u307b\u3068\u3093\u3069\u540c\u3058\u5185\u5bb9\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Regex.Match(\u691c\u7d22\u5143\u306e\u6587\u5b57\u5217, \u691c\u7d22\u5185\u5bb9);<\/code><\/pre>\n\n\n\n<p>IsMatch\u30e1\u30bd\u30c3\u30c9\u3067\u306fBool\u5024\u304c\u8fd4\u3055\u308c\u307e\u3059\u304c\u3001Match\u30e1\u30bd\u30c3\u30c9\u306fMatch\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u623b\u308a\u5024\u3068\u3057\u3066\u8fd4\u3057\u307e\u3059\u3002\u30d7\u30ed\u30d1\u30c6\u30a3\u306e1\u3064\u3067\u3042\u308bValue\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u691c\u7d22\u5185\u5bb9\u306b\u4e00\u81f4\u3057\u305f\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u5b9f\u969b\u306e\u52d5\u304d\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>using System.Text.RegularExpressions;\n\nstring str = \"123,456,789\";\nMatch matche = Regex.Match(str, @\"\\d+\");\n\nConsole.WriteLine(matche.Value);<\/code><\/pre>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>123<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001Match\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001\u5b9f\u884c\u7d50\u679c\u3092\u898b\u308b\u3068\u5206\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u691c\u7d22\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u304c\u8907\u6570\u7b87\u6240\u306b\u5206\u304b\u308c\u3066\u3044\u308b\u5834\u5408\u306b\u306f\u3001\u6700\u521d\u306b\u30de\u30c3\u30c1\u3057\u305f\u6587\u5b57\u5217\u306e\u307f\u3057\u304b\u53d6\u5f97\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u5168\u3066\u306e\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u9805\u76ee\u3067\u7d39\u4ecb\u3059\u308bMatches\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 id=\"outline__3_2\" class=\"wp-block-heading\">Matches\u30e1\u30bd\u30c3\u30c9\u3067\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u5168\u3066\u306e\u90e8\u5206\u3092\u62bd\u51fa\u3059\u308b<\/h3>\n\n\n\n<p>\u6b21\u306b\u3001Matches\u30e1\u30bd\u30c3\u30c9\u306e\u4f7f\u7528\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u57fa\u672c\u69cb\u6587\u306f\u3053\u308c\u307e\u3067\u3068\u540c\u69d8\u3067\u3059\u304c\u3001Matches\u30e1\u30bd\u30c3\u30c9\u306e\u5834\u5408\u306fMatchCollection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>using System.Text.RegularExpressions;\n\nstring str = \"123,456,789\";\nMatchCollection matches = Regex.Matches(str, @\"\\d+\");\n\nforeach (Match m in matches)\n{\n    Console.WriteLine(m.Value);\n}<\/code><\/pre>\n\n\n\n<p>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>123\n456\n789<\/code><\/pre>\n\n\n\n<p>MatchCollection\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u306b\u7d50\u679c\u304c\u5185\u5305\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001foreach\u6587\u3067\u53d6\u308a\u51fa\u3057\u3066\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u3002<br>\u5148\u307b\u3069\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u53d6\u5f97\u3055\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u6b8b\u308a\u306e\u6587\u5b57\u5217\u3082\u3001\u3053\u306e\u65b9\u6cd5\u3067\u62bd\u51fa\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\">Replace\u30e1\u30bd\u30c3\u30c9\u3067\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b<\/h2>\n\n\n\n<p>\u6700\u5f8c\u306b\u3001Regex\u30af\u30e9\u30b9\u306eReplace\u30e1\u30bd\u30c3\u30c9\u3067\u6587\u5b57\u5217\u3092\u7f6e\u63db\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>Replace\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6307\u5b9a\u30d1\u30bf\u30fc\u30f3\u306b\u4e00\u81f4\u3059\u308b\u6587\u5b57\u5217\u3092\u5225\u306e\u6587\u5b57\u5217\u306b\u7f6e\u63db\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u3010\u57fa\u672c\u69cb\u6587\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Regex.Replace(\u691c\u7d22\u5143\u306e\u6587\u5b57\u5217, \u691c\u7d22\u5185\u5bb9, \u7f6e\u63db\u3059\u308b\u6587\u5b57\u5217)<\/code><\/pre>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><strong>\u3010\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>using System.Text.RegularExpressions;\n\nstring result = Regex.Replace(\"AbCd\", @\"&#91;a-z]\", \",\");\n\nConsole.WriteLine(result);<\/code><\/pre>\n\n\n\n<p><strong>\u3010\u5b9f\u884c\u7d50\u679c\u3011<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>A,C,<\/code><\/pre>\n\n\n\n<p>String\u30af\u30e9\u30b9\u306b\u3082Replace\u30e1\u30bd\u30c3\u30c9\u306f\u3042\u308a\u307e\u3059\u304c\u3001\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u3063\u3066\u8907\u96d1\u306a\u30d1\u30bf\u30fc\u30f3\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u306e\u304c\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>C#\u306e\u6b63\u898f\u8868\u73fe\u306b\u3064\u3044\u3066\u3001\u57fa\u790e\u3068\u306a\u308b\u90e8\u5206\u3092\u9806\u756a\u306b\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u8a18\u53f7\u3092\u3044\u304f\u3064\u3082\u7d44\u307f\u5408\u308f\u305b\u308b\u6b63\u898f\u8868\u73fe\u30d1\u30bf\u30fc\u30f3\u306e\u8a18\u6cd5\u306f\u3001\u306f\u3058\u3081\u306e\u3046\u3061\u306f\u5c11\u3005\u8907\u96d1\u306b\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3067\u3059\u304c\u3001\u6b63\u898f\u8868\u73fe\u3092\u4e00\u5ea6\u899a\u3048\u3066\u304a\u304f\u3068\u3001\u5024\u306e\u64cd\u4f5c\u3092\u884c\u3046\u69d8\u3005\u306a\u5834\u9762\u3067\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305c\u3072\u3053\u306e\u8a18\u4e8b\u3082\u53c2\u8003\u306b\u3057\u306a\u304c\u3089\u3001\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u9811\u5f35\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\">C#\u306e\u52c9\u5f37\u65b9\u6cd5\u306f\uff1f<\/h2>\n\n\n<p>\u66f8\u7c4d\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3067\u5b66\u7fd2\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u6628\u4eca\u3067\u306f\u3001YouTube\u306a\u3069\u306e\u52d5\u753b\u30b5\u30a4\u30c8\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30b5\u30a4\u30c8\u306a\u3069\u3082\u5145\u5b9f\u3057\u3066\u3044\u3066\u591a\u304f\u306e\u60c5\u5831\u304c\u624b\u306b\u5165\u308a\u307e\u3059\u3002<br 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