{"id":45619,"date":"2024-01-09T21:10:07","date_gmt":"2023-11-05T08:54:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45619-2\/"},"modified":"2024-05-04T17:34:42","modified_gmt":"2024-05-04T09:34:42","slug":"45619-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45619-2\/","title":{"rendered":""},"content":{"rendered":"

\u578b\u306e\u4e2d\u306b\u95a2\u6570\u3092\u9069\u5fdc\u3055\u305b\u307e\u3059\u3002<\/p>\n

\u3042\u3042\u3053\u308c\u3063\u3066Haskell\u306efmap\u306b\u4f3c\u3066\u308b\u301c\u3063\u3066\u3061\u3087\u3063\u3068\u611f\u52d5\u3057\u305f\u306e\u3067\u30e1\u30e2\u3067\u3059\u3002
\n\u5805\u7262\u3055\u3068\u7c21\u6f54\u3055\u304c\u4e21\u65b9\u6c42\u3081\u308b\u3088\u3046\u306a\u72b6\u6cc1\u4e0b\u3067\u5f79\u7acb\u3061\u305d\u3046\u3067\u3059\u3002<\/p>\n

Haskell<\/h1>\n

\u30b3\u30fc\u30c9<\/h2>\n
main<\/span> =<\/span> do<\/span> \r\n   print<\/span> (<\/span>fmap<\/span>  (<\/span>+<\/span>7<\/span>)<\/span> (<\/span>Just<\/span> 10<\/span>))<\/span> \r\n   print<\/span> (<\/span>fmap<\/span>  (<\/span>+<\/span>7<\/span>)<\/span> Nothing<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u7d50\u679c<\/h2>\n
Just 17\r\nNothing\r\n<\/code><\/pre>\n
Rust<\/h1>\n
\u30b3\u30fc\u30c9<\/h2>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    println!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> Some<\/span>(<\/span>10<\/span>)<\/span>.map<\/span>(|<\/span>v<\/span>|<\/span> v<\/span>+<\/span>7<\/span>));<\/span>\r\n    println!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> None<\/span>::<\/span><<\/span>usize<\/span>><\/span>.map<\/span>(|<\/span>v<\/span>|<\/span> v<\/span>+<\/span>7<\/span>));<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u7d50\u679c<\/h2>\n
Some(17)\r\nNone\r\n<\/code><\/pre>\n
\u53c2\u8003<\/h1>\n
AtCoder abc118 arzk\u3055\u3093\u306e\u56de\u7b54<\/p>\n","protected":false},"excerpt":{"rendered":"
\u578b\u306e\u4e2d\u306b\u95a2\u6570\u3092\u9069\u5fdc\u3055\u305b\u307e\u3059\u3002 \u3042\u3042\u3053\u308c\u3063\u3066Haskell\u306efmap\u306b\u4f3c\u3066\u308b\u301c\u3063\u3066\u3061\u3087\u3063\u3068\u611f\u52d5\u3057\u305f\u306e\u3067\u30e1\u30e2\u3067\u3059\u3002 […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45619","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n- 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\/zh\/blog\/45619-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u578b\u306e\u4e2d\u306b\u95a2\u6570\u3092\u9069\u5fdc\u3055\u305b\u307e\u3059\u3002 \u3042\u3042\u3053\u308c\u3063\u3066Haskell\u306efmap\u306b\u4f3c\u3066\u308b\u301c\u3063\u3066\u3061\u3087\u3063\u3068\u611f\u52d5\u3057\u305f\u306e\u3067\u30e1\u30e2\u3067\u3059\u3002 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45619-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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