{"id":208311,"date":"2025-07-08T10:17:13","date_gmt":"2025-07-08T02:17:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/208311\/"},"modified":"2025-07-08T10:17:13","modified_gmt":"2025-07-08T02:17:13","slug":"bufio-newreaderos-stdin-%e5%92%8c-fmt-scanln-%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/208311\/","title":{"rendered":"bufio.NewReader(os.Stdin) \u548c fmt.Scanln() \u6709\u4ec0\u4e48\u533a\u522b"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> bufio.NewReader(os.Stdin) \u548c fmt.Scanln() \u6709\u4ec0\u4e48\u533a\u522b<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-05-01 17:00:45<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5c0f\u4f19\u4f34\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u5b66\u4e60Golang<\/span>\u5f88\u6709\u610f\u601d\uff1f\u6709\u610f\u601d\u5c31\u5bf9\u4e86\uff01\u4eca\u5929\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300abufio.NewReader(os.Stdin) \u548c fmt.Scanln() \u6709\u4ec0\u4e48\u533a\u522b\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u5c06\u4f1a\u6d89\u53ca\u5230<\/span>\uff0c\u82e5\u662f\u5728\u5b66\u4e60\u4e2d\u5bf9\u5176\u4e2d\u90e8\u5206\u77e5\u8bc6\u70b9\u6709\u7591\u95ee\uff0c\u6216\u8bb8\u770b\u4e86\u672c\u6587\u5c31\u80fd\u5e2e\u5230\u4f60\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

package main\n\nimport (\n    \"bufio\"\n    \"fmt\"\n    \"os\"\n)\n\nfunc main() {\n    in := bufio.NewReader(os.Stdin)\n    fmt.Println(\"Please input S: \")\n    S, _ := in.ReadString('\\n')\n    fmt.Println(\"Please input J: \")\n    J, _ := in.ReadString('\\n')\n    sum := numJewelsInStones(J,S)\n    fmt.Println(sum)\n}\n\nfunc numJewelsInStones(J string, S string) int {\n    var sum  int\n    for _, s := range S {\n        for _, j := range J{\n            if s ==j {\n                sum ++\n            }\n        }\n\n    }\n    return sum\n}<\/pre>\n
\u5f53\u6211\u5728\u7ec8\u7aef\u8f93\u5165\u201chello\u201d\u548c\u201ch\u201d\u65f6\u3002\u8be5\u7a0b\u5e8f\u5c06\u6253\u5370 2\uff0c\u4f46\u9884\u671f\u662f 1\u3002<\/p>\n
 \u5982\u679c\u6211\u4f7f\u7528 fmt.scanln()\uff0c\u7ed3\u679c\u5c06\u4e3a 1\u3002<\/p>\n
 \u662f\u4ec0\u4e48\u5bfc\u81f4\u4e86\u8fd9\u4e2a\u7ed3\u679c\uff1f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u5b83\u4eec\u5b8c\u5168\u4e0d\u540c\uff0c\u800c\u4e14\u5927\u591a\u4e0d\u76f8\u5173\u3002<\/p>\n
bufio.NewReader()<\/code>\u201c\u5305\u88c5 io.Reader \u6216 io.Writer \u5bf9\u8c61\uff0c\u521b\u5efa\u53e6\u4e00\u4e2a\u4e5f\u5b9e\u73b0\u8be5\u63a5\u53e3\u4f46\u63d0\u4f9b\u7f13\u51b2\u548c\u6587\u672c I\/O \u5e2e\u52a9\u7684\u5bf9\u8c61\uff08Reader \u6216 Writer\uff09\u201d\u3002 \u3002<\/p>\n
\u6362\u53e5\u8bdd\u8bf4\uff0c\u5b83\u6240\u505a\u7684\u5c31\u662f\u5411\uff08\u5728\u60a8\u7684\u793a\u4f8b\u4e2d\uff09os.Stdin<\/code> \u6dfb\u52a0\u4e00\u4e2a\u7f13\u51b2\u5c42\u3002\u5b83\u6839\u672c\u4e0d\u89e3\u6790\u6216\u89e3\u91ca\u6d41\u3002<\/p>\n
\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u4ece\u6d41\u4e2d\u8bfb\u53d6\u6570\u636e\uff08\u53ef\u80fd\u4f1a\u6216\u53ef\u80fd\u4e0d\u4f1a\u7f13\u51b2\u2014\u2014\u5373\u7531bufio<\/code>\u5305\u8fd4\u56de\uff09\uff0c\u7528\u7a7a\u683c\u5206\u5272\u8f93\u5165\uff0c\u5c06\u5176\u5b58\u50a8\u5728\u5207\u7247\u4e2d\u3002<\/p>\n
\u901a\u8fc7\u9605\u8bfb\u6587\u6863\uff08\u6211\u5728\u4e0a\u9762\u94fe\u63a5\u5230\u7684\u6587\u6863\uff09\uff0c\u60a8\u53ef\u4ee5\u83b7\u5f97\u6bcf\u4e2a\u6587\u6863\u7684\u5177\u4f53\u8be6\u7ec6\u4fe1\u606f\u3002\u4f46\u76f4\u63a5\u56de\u7b54\u4f60\u7684\u95ee\u9898\u201c\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u201d\u5c31\u662f\u201c\u7edd\u5bf9\u7684\u4e00\u5207\u3002\u5c3d\u7ba1\u5b83\u4eec\u53ef\u4ee5\u4e00\u8d77\u4f7f\u7528\uff0c\u4f46\u5b83\u4eec\u51e0\u4e4e\u6ca1\u6709\u4efb\u4f55\u5171\u540c\u70b9\u3002\u201d<\/p>\n
\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGolang\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-208311","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=208311"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/208311\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=208311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=208311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=208311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}