{"id":15974,"date":"2024-03-16T02:51:13","date_gmt":"2024-03-15T17:51:13","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/dat%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e5%86%85%e3%81%ae%e3%81%99%e3%81%b9%e3%81%a6%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af%e3%80%81qt\/"},"modified":"2025-08-06T05:02:40","modified_gmt":"2025-08-05T20:02:40","slug":"dat%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e5%86%85%e3%81%ae%e3%81%99%e3%81%b9%e3%81%a6%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af%e3%80%81qt","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/dat%e3%83%95%e3%82%a1%e3%82%a4%e3%83%ab%e5%86%85%e3%81%ae%e3%81%99%e3%81%b9%e3%81%a6%e3%81%ae%e3%83%87%e3%83%bc%e3%82%bf%e3%82%92%e8%aa%ad%e3%81%bf%e8%be%bc%e3%82%80%e3%81%ab%e3%81%af%e3%80%81qt\/","title":{"rendered":"dat\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\u3001qt\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3057\u307e\u3059\u304b\uff1f"},"content":{"rendered":"<p>Qt\u3092\u4f7f\u7528\u3057\u3066\u3001.dat\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u305f\u3081\u306b\u3001QFile\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ol>\n<li>.dat\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u3068\u540d\u524d\u3092\u6307\u5b9a\u3057\u3066\u3001QFile\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>QFile\u306eopen()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304d\u3001\u6b63\u5e38\u306b\u958b\u304b\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<li>QFile\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u95a2\u9023\u4ed8\u3051\u3055\u308c\u305fQDataStream\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>QDataStream\u306ereadRawData()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001.dat\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u307e\u3059\u3002<\/li>\n<li>QDataStream\u306eatEnd()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u306e\u672b\u5c3e\u307e\u3067\u8aad\u307f\u53d6\u3063\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<li>\u30d5\u30a1\u30a4\u30eb\u306e\u6700\u5f8c\u307e\u3067\u3001\u30eb\u30fc\u30d7\u5185\u3067\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u307f\u307e\u3059\u3002<\/li>\n<li>QFile\u306eclose()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9589\u3058\u308b\u3002<\/li>\n<\/ol>\n<p>.dat\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u4f8b\u3092\u4ee5\u4e0b\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;QFile&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;QDataStream&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;QDebug&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-function\"><span class=\"hljs-type\">int<\/span> <span class=\"hljs-title\">main<\/span><span class=\"hljs-params\">()<\/span>\r\n<\/span>{\r\n    <span class=\"hljs-comment\">\/\/ \u521b\u5efaQFile\u5bf9\u8c61<\/span>\r\n    <span class=\"hljs-function\">QFile <span class=\"hljs-title\">file<\/span><span class=\"hljs-params\">(<span class=\"hljs-string\">\"data.dat\"<\/span>)<\/span><\/span>;\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u6253\u5f00\u6587\u4ef6<\/span>\r\n    <span class=\"hljs-keyword\">if<\/span> (!file.<span class=\"hljs-built_in\">open<\/span>(QIODevice::ReadOnly))\r\n    {\r\n        <span class=\"hljs-built_in\">qDebug<\/span>() &lt;&lt; <span class=\"hljs-string\">\"Failed to open file\"<\/span>;\r\n        <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">-1<\/span>;\r\n    }\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u521b\u5efaQDataStream\u5bf9\u8c61<\/span>\r\n    <span class=\"hljs-function\">QDataStream <span class=\"hljs-title\">in<\/span><span class=\"hljs-params\">(&amp;file)<\/span><\/span>;\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u6587\u4ef6\u4e2d\u7684\u6240\u6709\u6570\u636e<\/span>\r\n    <span class=\"hljs-keyword\">while<\/span> (!in.<span class=\"hljs-built_in\">atEnd<\/span>())\r\n    {\r\n        <span class=\"hljs-comment\">\/\/ \u8bfb\u53d6\u4e00\u4e2a\u6570\u636e<\/span>\r\n        <span class=\"hljs-type\">int<\/span> data;\r\n        in &gt;&gt; data;\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8f93\u51fa\u6570\u636e<\/span>\r\n        <span class=\"hljs-built_in\">qDebug<\/span>() &lt;&lt; data;\r\n    }\r\n\r\n    <span class=\"hljs-comment\">\/\/ \u5173\u95ed\u6587\u4ef6<\/span>\r\n    file.<span class=\"hljs-built_in\">close<\/span>();\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b3\u30fc\u30c9\u3067\u306f\u3001\u307e\u305aQFile\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u4f5c\u6210\u3055\u308c\u3001\u8aad\u307f\u53d6\u308b.dat\u30d5\u30a1\u30a4\u30eb\u306e\u540d\u524d\u304c&#8221;data.dat&#8221;\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001QFile\u306eopen()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u304d\u3001\u5931\u6557\u3057\u305f\u5834\u5408\u306f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u51fa\u529b\u3057\u3066\u623b\u308a\u307e\u3059\u3002\u6b21\u306b\u3001QDataStream\u30aa\u30d6\u30b8\u30a7\u30af\u30c8in\u304c\u4f5c\u6210\u3055\u308c\u3001QFile\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u95a2\u9023\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3066QDataStream\u306e&gt;&gt;\u6f14\u7b97\u5b50\u3067\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u5404\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308a\u3001qDebug()\u95a2\u6570\u3067\u51fa\u529b\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001QFile\u306eclose()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u9589\u3058\u307e\u3059\u3002<\/p>\n<p>.dat\u30d5\u30a1\u30a4\u30eb\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u969b\u306b\u306f\u3001\u66f8\u304d\u8fbc\u307f\u6642\u306b\u4f7f\u7528\u3055\u308c\u305f\u30c7\u30fc\u30bf\u578b\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u3001\u8aa4\u3063\u305f\u30c7\u30fc\u30bf\u304c\u8aad\u307f\u53d6\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qt\u3092\u4f7f\u7528\u3057\u3066\u3001.dat\u30d5\u30a1\u30a4\u30eb\u304b\u3089\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u308b\u305f\u3081\u306b\u3001QFile\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 .dat\u30d5\u30a1\u30a4\u30eb\u306e\u30d1\u30b9\u3068\u540d\u524d\u3092\u6307\u5b9a\u3057\u3066\u3001QFile\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002  [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[26,61],"class_list":["post-15974","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-26","tag-61"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>dat\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\u3001qt\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3057\u307e\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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content=\"dat\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\u3001qt\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3057\u307e\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"dat\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306fqt\u3092\u3069\u306e\u3088\u3046\u306b\u4f7f\u7528\u3057\u307e\u3059\u304b\uff1f\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u5b9f\u8df5\u7684\u306a\u4f8b\u3068\u30b3\u30fc\u30c9\u3001\u6ce8\u610f\u70b9\u3092\u542b\u3081\u3066\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u8aac\u660e\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/dat\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u8fbc\u3080\u306b\u306f\u3001qt\/\" \/>\n<meta property=\"og:site_name\" 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