{"id":3744,"date":"2019-02-25T01:46:16","date_gmt":"2019-02-24T16:46:16","guid":{"rendered":"https:\/\/greentown.tokyo\/?p=3744"},"modified":"2019-02-25T01:46:16","modified_gmt":"2019-02-24T16:46:16","slug":"10minutes-go13","status":"publish","type":"post","link":"https:\/\/greentown.tokyo\/?p=3744","title":{"rendered":"10\u5206GO 13\u65e5\u76ee"},"content":{"rendered":"

\u4eca\u65e5\u30de\u30c4\u30a8\u30af\u306b\u884c\u3063\u305f\u3089\u3001\u6628\u65e5\u30a2\u30f3\u30b5\u30f3\u30d6\u30eb\u3057\u305f\u30d1\u30fc\u30c8\u30ca\u30fc\u306b\u3070\u3063\u305f\u308a\u4f1a\u3044\u307e\u3057\u305f\u3002<\/p>\n

\u6628\u65e5\u3001\u5f7c\u5973\u306f\u4ed5\u4e8b\u306e\u5408\u9593\u306b\u30ec\u30c3\u30b9\u30f3\u306b\u6765\u305f\u3068\u3001\u30a2\u30f3\u30b5\u30f3\u30d6\u30eb\u7d42\u308f\u3063\u305f21\u6642\u304f\u3089\u3044\u306b\u518d\u51fa\u793e\u3060\u305d\u3046\u3067\uff08\u571f\u66dc\u306a\u306e\u306b\uff09<\/p>\n

\u4eca\u65e5\u306f\u30de\u30c4\u30a8\u30af\u7d42\u308f\u3063\u3066\u304b\u3089\uff0820\u6642\uff09\u3053\u308c\u304b\u3089\u51fa\u793e\u3068\u304b\u8a00\u3063\u3066\u307e\u3057\u305f\u3002<\/p>\n

\u9854\u8272\u60aa\u304b\u3063\u305f\u30fb\u30fb\u5927\u4e08\u592b\u304b\u3044\u306a\u30fb\u30fb<\/p>\n

 <\/p>\n

GO<\/h2>\n

\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9eGo<\/h3>\n

\u5fd9\u3057\u304f\u3066\u30b3\u30fc\u30c9\u6a21\u5199\u3057\u3066\u52d5\u304b\u3059\u3068\u3053\u308d\u307e\u3067\u3057\u304b\u3067\u304d\u306a\u304b\u3063\u305f\u30fb\u30fb<\/p>\n

\u5185\u5bb9\u306f\u660e\u65e5\u3058\u3063\u304f\u308a\u8aad\u3080\u3002<\/p>\n

package main\r\n\r\nimport (\r\n\t\"bufio\"\r\n\t\"fmt\"\r\n\t\"os\"\r\n)\r\n\r\nfunc main() {\r\n\r\n\tcounts := make(map[string]int)\r\n\tfiles := os.Args[1:]\r\n\r\n\tif len(files) == 0 {\r\n\t\tcountLines(os.Stdin, counts)\r\n\t} else {\r\n\t\tfor _, arg := range files {\r\n\t\t\tf, err := os.Open(arg)\r\n\t\t\tif err != nil {\r\n\t\t\t\tfmt.Fprintf(os.Stderr, \"dup2: %v\u00a5n\", err)\r\n\t\t\t\tcontinue\r\n\t\t\t}\r\n\t\t\tcountLines(f, counts)\r\n\t\t\tf.Close()\r\n\t\t}\r\n\t\tfor line, n := range counts {\r\n\t\t\tif n > 1 {\r\n\t\t\t\tfmt.Printf(\"%d\u00a5t%s\u00a5n\", n, line)\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n}\r\n\r\nfunc countLines(f *os.File, counts map[string]int) {\r\n\r\n\tinput := bufio.NewScanner(f)\r\n\tfor input.Scan() {\r\n\t\tcounts[input.Text()]++\r\n\t\tfmt.Println(\"%v\", counts)\r\n\t}\r\n}<\/pre>\n
 <\/p>\n
\u30d5\u30a1\u30a4\u30eb\u306e\u5185\u5bb9<\/p>\n
$ cat dup2.txt \r\ngo\r\nreact\r\nangular\r\nredex\r\n<\/pre>\n
 <\/p>\n
\u5b9f\u884c\u3068\u7d50\u679c<\/p>\n
$ go run ch1-dup2.go dup2.txt\r\n%v map[go:1]\r\n%v map[go:1 react:1]\r\n%v map[react:1 angular:1 go:1]\r\n%v map[go:1 react:1 angular:1 redex:1]\r\n%v map[:1 go:1 react:1 angular:1 redex:1]\r\n<\/pre>\n
 <\/p>\n
\u304a\u3057\u307e\u3044\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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