{"id":880,"date":"2025-01-16T09:39:53","date_gmt":"2025-01-16T00:39:53","guid":{"rendered":"https:\/\/dnetcore.ohwaki.jp\/wordpress\/?p=880"},"modified":"2025-01-16T09:39:53","modified_gmt":"2025-01-16T00:39:53","slug":"c-%e3%82%b3%e3%83%ac%e3%82%af%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e3%82%b9%e3%83%a9%e3%82%a4%e3%82%b9%e8%a1%a8%e8%a8%98","status":"publish","type":"post","link":"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=880","title":{"rendered":"C# &#8211; \u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u30b9\u30e9\u30a4\u30b9\u8868\u8a18"},"content":{"rendered":"\n<p>\u53e4\u3044\u8a71\u306b\u306a\u308b\u3051\u308c\u3069\u3001C#8.0\u304b\u3089\u3001\u914d\u5217\u3084\u6570\u5024\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6301\u3064\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u30b9\u30e9\u30a4\u30b9\u8868\u8a18\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<br>\u3053\u306e\u8868\u8a18\u3061\u3087\u3063\u3068\u5206\u304b\u308a\u3065\u3089\u304b\u3063\u305f\u306e\u3067\u3001\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u307f\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u6587\u5b57\u5217\u3092\u4f8b\u306b\u6319\u3052\u308b\u3002<br>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3001\u6587\u5b57\u5217\u304c\u3042\u3063\u305f\u5834\u5408\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-csharp\" data-file=\"\u6587\u5b57\u5217\" data-lang=\"C#\"><code>string s = &quot;0123456789&quot;;<\/code><\/pre><\/div>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-csharp\" data-file=\"\u30b9\u30e9\u30a4\u30b9\u8868\u8a18\" data-lang=\"C#\"><code>\/\/ ^n - \u6700\u5f8c\u304b\u3089n\u756a\u76ee\u3092\u8868\u3059\n&gt; s[^1]  \n&#39;9&#39;\n\n\/\/ ..\u8868\u8a18\u3067\u7bc4\u56f2\u6307\u5b9a(\u30b9\u30e9\u30a4\u30b9)\n\/\/ [s..e]\u8868\u8a18\u3067\u3001s\u306f\u30b9\u30bf\u30fc\u30c8\u30a4\u30f3\u30c7\u30c3\u30af\u30b9,e\u306f\u30a8\u30f3\u30c9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9+1\n\n&gt; s[..^1]\t\/\/ 0\uff5e\u6700\u5f8c\u304b\u30892\u756a\u76ee\n&quot;012345678&quot;\n\n&gt; s[1..4]\t\/\/ index 1\uff5e3\n&quot;123&quot;\n\n&gt; s[3..]\t\/\/ index 3\u4ee5\u964d\n&quot;3456789&quot;\n\n&gt; s[^3..]\t\/\/ \u6700\u5f8c\u304b\u30893\u756a\u76ee\u4ee5\u964d\n&quot;789&quot;\n\n&gt; s[^5..^2]\t\/\/ \u6700\u5f8c\u304b\u30895\u756a\u76ee\u304b\u3089\u6700\u5f8c\u304b\u30893\u756a\u76ee\n&quot;567&quot;<\/code><\/pre><\/div>\n\n\n\n<p>\u3068\u3044\u3046\u611f\u3058\u3002<\/p>\n\n\n\n<p>\u30b9\u30e9\u30a4\u30b9\u306e\u5834\u5408\u3001[s..e]\u306e\u8868\u8a18\u3067\u3001s\u306f\u542b\u3080,e\u306f\u542b\u307e\u306a\u3044\u3068\u3044\u3046\u70b9\u306b\u6ce8\u610f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53e4\u3044\u8a71\u306b\u306a\u308b\u3051\u308c\u3069\u3001C#8.0\u304b\u3089\u3001\u914d\u5217\u3084\u6570\u5024\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6301\u3064\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306e\u30b9 &hellip; <a href=\"https:\/\/sumomo.ohwaki.jp\/wordpress\/?p=880\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,9,4],"tags":[],"class_list":["post-880","post","type-post","status-publish","format-standard","hentry","category-net","category-c","category-4"],"_links":{"self":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=880"}],"version-history":[{"count":3,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/880\/revisions"}],"predecessor-version":[{"id":883,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/880\/revisions\/883"}],"wp:attachment":[{"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sumomo.ohwaki.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}