{"id":12361,"date":"2026-01-08T10:28:43","date_gmt":"2026-01-08T01:28:43","guid":{"rendered":"https:\/\/rakkoserver.com\/plus\/?p=12361"},"modified":"2026-01-08T10:28:43","modified_gmt":"2026-01-08T01:28:43","slug":"tool-dec-to-oct","status":"publish","type":"post","link":"https:\/\/rakkoserver.com\/plus\/tool-dec-to-oct\/","title":{"rendered":"10\u9032\u6570\u21928\u9032\u6570\u5909\u63db\u30c4\u30fc\u30eb"},"content":{"rendered":"\n<div id=\"d2o_tool_v1\" style=\"width: 100%; color: #333; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; line-height: 1.6;\">\n    <style>\n        \/* 10\u9032\u6570-8\u9032\u6570\u5909\u63db\u30c4\u30fc\u30eb \u7d71\u4e00\u30b9\u30bf\u30a4\u30eb\u5b9a\u7fa9 *\/\n        #d2o_tool_v1 .d2o_input_group { margin-bottom: 20px; }\n        #d2o_tool_v1 p.d2o_label { margin: 0 0 8px 0; font-weight: bold; font-size: 15px; color: #1a1a1a; }\n        #d2o_tool_v1 textarea.d2o_textarea {\n            width: 100%;\n            height: 110px;\n            padding: 12px;\n            box-sizing: border-box;\n            border: 2px solid #ddd;\n            border-radius: 6px;\n            font-family: 'Courier New', Courier, monospace;\n            font-size: 16px;\n            resize: vertical;\n            background-color: #ffffff;\n            transition: border-color 0.2s;\n        }\n        #d2o_tool_v1 textarea.d2o_textarea:focus {\n            outline: none;\n            border-color: #13284B;\n        }\n        #d2o_tool_v1 .d2o_button_area { \n            display: flex;\n            flex-direction: column;\n            gap: 10px;\n            margin-bottom: 25px;\n        }\n        #d2o_tool_v1 .d2o_convert_btn {\n            width: 100%;\n            height: 48px;\n            background-color: #13284B;\n            color: #ffffff;\n            border: none;\n            border-radius: 6px;\n            font-size: 16px;\n            font-weight: bold;\n            cursor: pointer;\n            display: flex;\n            align-items: center;\n            justify-content: center;\n            transition: opacity 0.2s;\n        }\n        #d2o_tool_v1 .d2o_convert_btn:hover { opacity: 0.9; }\n        #d2o_tool_v1 .d2o_convert_btn:active { transform: translateY(1px); }\n        \n        #d2o_tool_v1 .d2o_clear_btn {\n            background: none;\n            border: 1px solid #ccc;\n            color: #666;\n            height: 48px;\n            border-radius: 6px;\n            font-size: 14px;\n            cursor: pointer;\n            background-color: #fff;\n            transition: background-color 0.2s;\n        }\n        #d2o_tool_v1 .d2o_clear_btn:hover { background-color: #f5f5f5; }\n        #d2o_tool_v1 .d2o_result_area {\n            background-color: #f0f2f5;\n            padding: 24px;\n            border-radius: 8px;\n            display: none;\n            text-align: center;\n            margin-bottom: 10px;\n        }\n        #d2o_tool_v1 p.d2o_result_label { margin: 0 0 12px 0; font-size: 14px; color: #555; text-transform: uppercase; letter-spacing: 0.05em; }\n        #d2o_tool_v1 .d2o_result_value {\n            font-size: 32px;\n            font-weight: 800;\n            color: #13284B;\n            word-break: break-all;\n            margin: 0;\n            line-height: 1.2;\n        }\n        #d2o_tool_v1 .d2o_error_msg {\n            color: #b71c1c;\n            background-color: #ffebee;\n            padding: 12px;\n            border-radius: 6px;\n            display: none;\n            margin-bottom: 20px;\n            font-size: 14px;\n            border-left: 4px solid #b71c1c;\n        }\n        @media (min-width: 480px) {\n            #d2o_tool_v1 .d2o_button_area {\n                flex-direction: row;\n                align-items: center;\n            }\n            #d2o_tool_v1 .d2o_convert_btn { flex: 2; }\n            #d2o_tool_v1 .d2o_clear_btn { flex: 1; }\n        }\n    <\/style>\n    <div id=\"d2o_error_v1\" class=\"d2o_error_msg\"><\/div>\n    <div class=\"d2o_input_group\">\n        <p class=\"d2o_label\">10\u9032\u6570 (Decimal)<\/p>\n        <textarea id=\"d2o_input_v1\" class=\"d2o_textarea\" placeholder=\"\u6570\u5b57\u3092\u5165\u529b\uff08\u4f8b: 255\uff09\" spellcheck=\"false\"><\/textarea>\n    <\/div>\n    <div class=\"d2o_button_area\">\n        <button id=\"d2o_submit_v1\" class=\"d2o_convert_btn\">8\u9032\u6570\u306b\u5909\u63db\u3059\u308b<\/button>\n        <button id=\"d2o_clear_v1\" class=\"d2o_clear_btn\">\u30af\u30ea\u30a2<\/button>\n    <\/div>\n    <div id=\"d2o_result_container_v1\" class=\"d2o_result_area\">\n        <p class=\"d2o_result_label\">8\u9032\u6570\u5909\u63db\u7d50\u679c (Octal)<\/p>\n        <p id=\"d2o_result_v1\" class=\"d2o_result_value\"><\/p>\n    <\/div>\n    <script>\n        (function() {\n            document.addEventListener('DOMContentLoaded', function() {\n                const inputEl = document.getElementById('d2o_input_v1');\n            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class=\"converter-link\">10\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-bin-to-hex\/\" class=\"converter-link\">16\u9032\u6570<\/a>\n        <\/div>\n    <\/div>\n    \n    <div id=\"converter-oct\" class=\"converter-content\">\n        <div class=\"converter-grid\">\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-oct-to-bin\/\" class=\"converter-link\">2\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-oct-to-dec\/\" class=\"converter-link\">10\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-oct-to-hex\/\" class=\"converter-link\">16\u9032\u6570<\/a>\n        <\/div>\n    <\/div>\n    \n    <div id=\"converter-dec\" class=\"converter-content\">\n        <div class=\"converter-grid\">\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-dec-to-bin\/\" class=\"converter-link\">2\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-dec-to-oct\/\" class=\"converter-link\">8\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-dec-to-hex\/\" class=\"converter-link\">16\u9032\u6570<\/a>\n        <\/div>\n    <\/div>\n    \n    <div id=\"converter-hex\" class=\"converter-content\">\n        <div class=\"converter-grid\">\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-hex-to-bin\/\" class=\"converter-link\">2\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-hex-to-oct\/\" class=\"converter-link\">8\u9032\u6570<\/a>\n            <a href=\"https:\/\/rakkoserver.com\/plus\/tool-hex-to-dec\/\" class=\"converter-link\">10\u9032\u6570<\/a>\n        <\/div>\n    <\/div>\n    \n    <script>\n        (function() {\n            \/\/ \u30bf\u30d6\u5207\u308a\u66ff\u3048\u95a2\u6570\uff08\u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30b3\u30fc\u30d7\u306b\u914d\u7f6e\uff09\n            window.converterShowTab = function(element, tabId) {\n                \/\/ 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id=\"i-0\">\u3053\u306e\u30c4\u30fc\u30eb\u3067\u3067\u304d\u308b\u3053\u3068<\/h2>\n\n\n\n<p>\u672c\u30c4\u30fc\u30eb\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u64cd\u4f5c\u306710\u9032\u6570\u304b\u30898\u9032\u6570\u3078\u306e\u5909\u63db\u8a08\u7b97\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u77ac\u6642\u306e\u5909\u63db\uff1a<\/strong> 10\u9032\u6570\u3092\u5165\u529b\u3057\u3066\u30dc\u30bf\u30f3\u3092\u62bc\u3059\u3060\u3051\u3067\u3001\u5373\u5ea7\u306b8\u9032\u6570\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5927\u304d\u306a\u6570\u5024\u306b\u5bfe\u5fdc\uff1a<\/strong> \u901a\u5e38\u306e\u96fb\u5353\u3067\u306f\u6841\u3042\u3075\u308c\u3057\u3066\u3057\u307e\u3046\u3088\u3046\u306a\u5927\u304d\u306a\u6841\u306e\u6570\u5024\uff08BigInt\uff09\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u5165\u529b\u30af\u30ea\u30a2\u6a5f\u80fd\uff1a<\/strong> 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class=\"wp-block-list\">\n<li><strong>10\u9032\u6570\uff08Decimal\uff09\u3068\u306f\uff1a<\/strong> 0\u304b\u30899\u307e\u3067\u306e10\u7a2e\u985e\u306e\u6570\u5b57\u3092\u4f7f\u3044\u300110\u3054\u3068\u306b\u6841\u304c\u4e0a\u304c\u308b\u6570\u3048\u65b9\u3067\u3059\u3002\u79c1\u305f\u3061\u304c\u65e5\u5e38\u751f\u6d3b\u3067\u6700\u3082\u4e00\u822c\u7684\u306b\u4f7f\u7528\u3057\u3066\u3044\u308b\u5f62\u5f0f\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>8\u9032\u6570\uff08Octal\uff09\u3068\u306f\uff1a<\/strong> 0\u304b\u30897\u307e\u3067\u306e8\u7a2e\u985e\u306e\u6570\u5b57\u3092\u4f7f\u3044\u30018\u3054\u3068\u306b\u6841\u304c\u4e0a\u304c\u308b\u6570\u3048\u65b9\u3067\u3059\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u4e16\u754c\u3067\u306f\u30013\u30d3\u30c3\u30c8\uff082\u306e3\u4e57\uff09\u3092\u3072\u3068\u307e\u3068\u3081\u306b\u3057\u3066\u6271\u3046\u969b\u306b\u4fbf\u5229\u306a\u305f\u3081\u3001\u53e4\u304f\u304b\u3089\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3084\u30b7\u30b9\u30c6\u30e0\u7ba1\u7406\u3067\u5229\u7528\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-2\">\u3053\u306e\u30c4\u30fc\u30eb\u304c\u5f79\u7acb\u3064\u3068\u304d\u306f\u3069\u3093\u306a\u3068\u304d\uff1f\uff08\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\uff09<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u672c\u30c4\u30fc\u30eb\u3092\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IT\u95a2\u9023\u306e\u8cc7\u683c\u8a66\u9a13\u5bfe\u7b56\uff1a<\/strong> \u57fa\u672c\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u3084IT\u30d1\u30b9\u30dd\u30fc\u30c8\u306a\u3069\u306e\u5b66\u7fd2\u3067\u3001\u9032\u6570\u5909\u63db\u306e\u554f\u984c\u3092\u89e3\u304f\u969b\u306e\u7b54\u3048\u5408\u308f\u305b\u3002<\/li>\n\n\n\n<li><strong>\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30fb\u30b7\u30b9\u30c6\u30e0\u958b\u767a\uff1a<\/strong> \u7279\u5b9a\u306e\u8a00\u8a9e\u3084OS\uff08Linux\u306e\u30d5\u30a1\u30a4\u30eb\u6a29\u9650\u306a\u3069\uff09\u30678\u9032\u6570\u8868\u8a18\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u969b\u306e\u78ba\u8a8d\u3002<\/li>\n\n\n\n<li><strong>\u6570\u5b66\u3084\u60c5\u5831\u6559\u80b2\uff1a<\/strong> \u5b66\u6821\u306e\u6388\u696d\u3084\u8ab2\u984c\u3067\u3001\u7570\u306a\u308b\u9032\u6570\u3078\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\u306e\u88dc\u52a9\u30c4\u30fc\u30eb\u3068\u3057\u3066\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">10\u9032\u6570\u304b\u30898\u9032\u6570\u3078\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u624b\u8a08\u7b97\u306710\u9032\u6570\u30928\u9032\u6570\u306b\u76f4\u3059\u306b\u306f\u3001**\u300c10\u9032\u6570\u306e\u6570\u5024\u30928\u3067\u5272\u308a\u7d9a\u3051\u3001\u305d\u306e\u4f59\u308a\u3092\u9006\u9806\u306b\u4e26\u3079\u308b\u300d**\u3068\u3044\u3046\u624b\u9806\u3092\u8e0f\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u4f8b\uff1a10\u9032\u6570\u306e\u300c100\u300d\u30928\u9032\u6570\u306b\u76f4\u3059\u5834\u5408<\/strong><\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>100 \u00f7 8 \uff1d 12 \u4f59\u308a <strong>4<\/strong><\/li>\n\n\n\n<li>12 \u00f7 8 \uff1d 1 \u4f59\u308a <strong>4<\/strong><\/li>\n\n\n\n<li>1 \u00f7 8 \uff1d 0 \u4f59\u308a <strong>1<\/strong><\/li>\n<\/ol>\n\n\n\n<p>\u4e0b\u304b\u3089\u4f59\u308a\u3092\u4e26\u3079\u308b\u3068\u300c144\u300d\u3068\u306a\u308a\u300110\u9032\u6570\u306e100\u306f8\u9032\u6570\u3067\u300c144\u300d\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u672c\u30c4\u30fc\u30eb\u3067\u306f\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u81ea\u52d5\u5b9f\u884c\u3057\u3001\u30df\u30b9\u306a\u304f\u7d50\u679c\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">10\u9032\u6570\u30fb8\u9032\u6570\u5bfe\u5fdc\u8868\uff08\u65e9\u898b\u8868\uff09<\/h2>\n\n\n\n<p>\u3088\u304f\u4f7f\u308f\u308c\u308b\u6570\u5024\u306e\u5bfe\u5fdc\u8868\u3067\u3059\u3002<\/p>\n\n\n<div id=\"id-e3666367-2275-4ef4-9c3e-bac8d911298a\">\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>10\u9032\u6570<\/strong><\/td><td><strong>8\u9032\u6570<\/strong><\/td><\/tr><\/thead><tbody><tr><td>1<\/td><td>1<\/td><\/tr><tr><td>8<\/td><td>10<\/td><\/tr><tr><td>10<\/td><td>12<\/td><\/tr><tr><td>16<\/td><td>20<\/td><\/tr><tr><td>64<\/td><td>100<\/td><\/tr><tr><td>100<\/td><td>144<\/td><\/tr><tr><td>255<\/td><td>377<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>10\u9032\u6570 (Decimal) 8\u9032\u6570\u306b\u5909\u63db\u3059\u308b \u30af\u30ea\u30a2 8\u9032\u6570\u5909\u63db\u7d50\u679c (Octal) \u3053\u306e\u30c4\u30fc\u30eb\u306f\u3001\u666e\u6bb5\u79c1\u305f\u3061\u304c\u4f7f\u3063\u3066\u3044\u308b10\u9032\u6570\u306e\u6570\u5024\u3092\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u4e16\u754c\u3067\u5229\u7528\u3055\u308c\u308b8\u9032\u6570\u3078\u77ac\u6642\u306b\u5909\u63db\u3059\u308b\u7121\u6599\u30c4\u30fc\u30eb\u3067\u3059\u3002 \u8907\u96d1\u306a &#8230; 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