{"id":111115,"date":"2024-03-22T18:03:21","date_gmt":"2024-03-22T09:03:21","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%83%ab%e3%83%bc%e3%83%a0%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa\/"},"modified":"2024-03-27T18:59:46","modified_gmt":"2024-03-27T09:59:46","slug":"java%e3%81%a7%e3%81%ae%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%83%ab%e3%83%bc%e3%83%a0%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%83%ab%e3%83%bc%e3%83%a0%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa\/","title":{"rendered":"Java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\u5b9f\u88c5"},"content":{"rendered":"<p>\u7c21\u7d20\u306a\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u306e\u5b9f\u88c5\u306b\u306f\u3001Java\u306e\u30bd\u30b1\u30c3\u30c8\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u306e\u4f8b\u3067\u3059\u3002<\/p>\n<p>\u30b5\u30fc\u30d0\u5074\u306e\u30b3\u30fc\u30c9\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.InputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.OutputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.net.ServerSocket;\r\n<span class=\"hljs-keyword\">import<\/span> java.net.Socket;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.ArrayList;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.List;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ChatServer<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> ServerSocket serverSocket;\r\n    <span class=\"hljs-keyword\">private<\/span> List&lt;ClientHandler&gt; clients = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ArrayList<\/span>&lt;&gt;();\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">ChatServer<\/span> <span class=\"hljs-variable\">server<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ChatServer<\/span>();\r\n        server.start(<span class=\"hljs-number\">8888<\/span>);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">start<\/span><span class=\"hljs-params\">(<span class=\"hljs-type\">int<\/span> port)<\/span> {\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            serverSocket = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ServerSocket<\/span>(port);\r\n            System.out.println(<span class=\"hljs-string\">\"\u670d\u52a1\u5668\u5df2\u542f\u52a8\uff0c\u76d1\u542c\u7aef\u53e3\uff1a\"<\/span> + port);\r\n\r\n            <span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-literal\">true<\/span>) {\r\n                <span class=\"hljs-type\">Socket<\/span> <span class=\"hljs-variable\">clientSocket<\/span> <span class=\"hljs-operator\">=<\/span> serverSocket.accept();\r\n                System.out.println(<span class=\"hljs-string\">\"\u5ba2\u6237\u7aef\u5df2\u8fde\u63a5\uff1a\"<\/span> + clientSocket.getRemoteSocketAddress());\r\n\r\n                <span class=\"hljs-comment\">\/\/ \u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u5ba2\u6237\u7aef\u5904\u7406\u5668<\/span>\r\n                <span class=\"hljs-type\">ClientHandler<\/span> <span class=\"hljs-variable\">clientHandler<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ClientHandler<\/span>(clientSocket);\r\n                clients.add(clientHandler);\r\n                clientHandler.start();\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">synchronized<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">broadcast<\/span><span class=\"hljs-params\">(String message, ClientHandler excludeClient)<\/span> {\r\n        <span class=\"hljs-keyword\">for<\/span> (ClientHandler client : clients) {\r\n            <span class=\"hljs-keyword\">if<\/span> (client != excludeClient) {\r\n                client.sendMessage(message);\r\n            }\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">synchronized<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">removeClient<\/span><span class=\"hljs-params\">(ClientHandler client)<\/span> {\r\n        clients.remove(client);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">private<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ClientHandler<\/span> <span class=\"hljs-keyword\">extends<\/span> <span class=\"hljs-title class_\">Thread<\/span> {\r\n        <span class=\"hljs-keyword\">private<\/span> Socket clientSocket;\r\n        <span class=\"hljs-keyword\">private<\/span> InputStream inputStream;\r\n        <span class=\"hljs-keyword\">private<\/span> OutputStream outputStream;\r\n\r\n        <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-title function_\">ClientHandler<\/span><span class=\"hljs-params\">(Socket clientSocket)<\/span> {\r\n            <span class=\"hljs-built_in\">this<\/span>.clientSocket = clientSocket;\r\n        }\r\n\r\n        <span class=\"hljs-meta\">@Override<\/span>\r\n        <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">run<\/span><span class=\"hljs-params\">()<\/span> {\r\n            <span class=\"hljs-keyword\">try<\/span> {\r\n                inputStream = clientSocket.getInputStream();\r\n                outputStream = clientSocket.getOutputStream();\r\n\r\n                <span class=\"hljs-type\">byte<\/span>[] buffer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">byte<\/span>[<span class=\"hljs-number\">1024<\/span>];\r\n                <span class=\"hljs-type\">int<\/span> bytesRead;\r\n                <span class=\"hljs-keyword\">while<\/span> ((bytesRead = inputStream.read(buffer)) != -<span class=\"hljs-number\">1<\/span>) {\r\n                    <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">message<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">String<\/span>(buffer, <span class=\"hljs-number\">0<\/span>, bytesRead);\r\n                    System.out.println(<span class=\"hljs-string\">\"\u6536\u5230\u6d88\u606f\uff1a\"<\/span> + message);\r\n\r\n                    <span class=\"hljs-comment\">\/\/ \u5e7f\u64ad\u6d88\u606f\u7ed9\u5176\u4ed6\u5ba2\u6237\u7aef<\/span>\r\n                    broadcast(message, <span class=\"hljs-built_in\">this<\/span>);\r\n                }\r\n            } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n                e.printStackTrace();\r\n            } <span class=\"hljs-keyword\">finally<\/span> {\r\n                <span class=\"hljs-keyword\">try<\/span> {\r\n                    clientSocket.close();\r\n                    removeClient(<span class=\"hljs-built_in\">this<\/span>);\r\n                } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n                    e.printStackTrace();\r\n                }\r\n            }\r\n        }\r\n\r\n        <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">sendMessage<\/span><span class=\"hljs-params\">(String message)<\/span> {\r\n            <span class=\"hljs-keyword\">try<\/span> {\r\n                outputStream.write(message.getBytes());\r\n                outputStream.flush();\r\n            } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n                e.printStackTrace();\r\n            }\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u30b3\u30fc\u30c9:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.InputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.OutputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.net.Socket;\r\n<span class=\"hljs-keyword\">import<\/span> java.util.Scanner;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">ChatClient<\/span> {\r\n    <span class=\"hljs-keyword\">private<\/span> Socket socket;\r\n    <span class=\"hljs-keyword\">private<\/span> InputStream inputStream;\r\n    <span class=\"hljs-keyword\">private<\/span> OutputStream outputStream;\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-type\">ChatClient<\/span> <span class=\"hljs-variable\">client<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">ChatClient<\/span>();\r\n        client.connect(<span class=\"hljs-string\">\"localhost\"<\/span>, <span class=\"hljs-number\">8888<\/span>);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">connect<\/span><span class=\"hljs-params\">(String serverAddress, <span class=\"hljs-type\">int<\/span> serverPort)<\/span> {\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            socket = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Socket<\/span>(serverAddress, serverPort);\r\n            System.out.println(<span class=\"hljs-string\">\"\u5df2\u8fde\u63a5\u5230\u670d\u52a1\u5668\uff1a\"<\/span> + serverAddress + <span class=\"hljs-string\">\":\"<\/span> + serverPort);\r\n\r\n            inputStream = socket.getInputStream();\r\n            outputStream = socket.getOutputStream();\r\n\r\n            <span class=\"hljs-comment\">\/\/ \u63a5\u6536\u548c\u53d1\u9001\u6d88\u606f\u7684\u7ebf\u7a0b<\/span>\r\n            <span class=\"hljs-type\">Thread<\/span> <span class=\"hljs-variable\">receiveThread<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Thread<\/span>(<span class=\"hljs-built_in\">this<\/span>::receiveMessages);\r\n            <span class=\"hljs-type\">Thread<\/span> <span class=\"hljs-variable\">sendThread<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Thread<\/span>(<span class=\"hljs-built_in\">this<\/span>::sendMessages);\r\n\r\n            receiveThread.start();\r\n            sendThread.start();\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">receiveMessages<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-type\">byte<\/span>[] buffer = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">byte<\/span>[<span class=\"hljs-number\">1024<\/span>];\r\n            <span class=\"hljs-type\">int<\/span> bytesRead;\r\n            <span class=\"hljs-keyword\">while<\/span> ((bytesRead = inputStream.read(buffer)) != -<span class=\"hljs-number\">1<\/span>) {\r\n                <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">message<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">String<\/span>(buffer, <span class=\"hljs-number\">0<\/span>, bytesRead);\r\n                System.out.println(message);\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">sendMessages<\/span><span class=\"hljs-params\">()<\/span> {\r\n        <span class=\"hljs-type\">Scanner<\/span> <span class=\"hljs-variable\">scanner<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">Scanner<\/span>(System.in);\r\n        <span class=\"hljs-keyword\">try<\/span> {\r\n            <span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-literal\">true<\/span>) {\r\n                <span class=\"hljs-type\">String<\/span> <span class=\"hljs-variable\">message<\/span> <span class=\"hljs-operator\">=<\/span> scanner.nextLine();\r\n                outputStream.write(message.getBytes());\r\n                outputStream.flush();\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u3001\u307e\u305a\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306e ChatServer \u30af\u30e9\u30b9\u3092\u5b9f\u884c\u3057\u3001\u6b21\u306b\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5074\u306e ChatClient \u30af\u30e9\u30b9\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30b5\u30fc\u30d0\u30fc\u5074\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4ed6\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u3057\u307e\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e connect \u30e1\u30bd\u30c3\u30c9\u306e serverAddress \u306b\u3001\u30b5\u30fc\u30d0\u30fc\u306e IP \u30a2\u30c9\u30ec\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c21\u7d20\u306a\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u306e\u5b9f\u88c5\u306b\u306f\u3001Java\u306e\u30bd\u30b1\u30c3\u30c8\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u306e\u4f8b\u3067\u3059\u3002 \u30b5\u30fc\u30d0\u5074\u306e\u30b3\u30fc\u30c9\uff1a import java.io.IOException; import java.io. [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-111115","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"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>Java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\u5b9f\u88c5 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\u5b9f\u88c5\" \/>\n<meta property=\"og:description\" content=\"\u7c21\u7d20\u306a\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u306e\u5b9f\u88c5\u306b\u306f\u3001Java\u306e\u30bd\u30b1\u30c3\u30c8\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u5b9f\u88c5\u306e\u4f8b\u3067\u3059\u3002 \u30b5\u30fc\u30d0\u5074\u306e\u30b3\u30fc\u30c9\uff1a import java.io.IOException; import java.io. [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-22T09:03:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-27T09:59:46+00:00\" \/>\n<meta name=\"author\" content=\"\u7dbe\u4e43, \u4e00\u5e0c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u7dbe\u4e43, \u4e00\u5e0c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%83%ab%e3%83%bc%e3%83%a0%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa\/\",\"url\":\"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7%e3%81%ae%e3%83%81%e3%83%a3%e3%83%83%e3%83%88%e3%83%ab%e3%83%bc%e3%83%a0%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%81%ae%e7%b0%a1%e5%8d%98%e3%81%aa\/\",\"name\":\"Java\u3067\u306e\u30c1\u30e3\u30c3\u30c8\u30eb\u30fc\u30e0\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7c21\u5358\u306a\u5b9f\u88c5 - 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