{"id":45540,"date":"2023-02-01T22:04:07","date_gmt":"2023-10-19T15:24:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45540-2\/"},"modified":"2024-04-29T12:39:30","modified_gmt":"2024-04-29T04:39:30","slug":"45540-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45540-2\/","title":{"rendered":""},"content":{"rendered":"

\u306f\u3058\u3081\u306b<\/h1>\n

Rust\u306e\u57fa\u672c\u7684\u306a\u6587\u6cd5\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u307f\u305f\u3002\u7b2c4\u56de\uff01
\n\u7b2c2,3\u56de\u306f\u5909\u6570(let\u6587)\u306b\u3064\u3044\u3066\u3060\u3063\u305f\u306e\u3067\u4eca\u56de\u306f\u300c\u5b9a\u6570\u300d\u306b\u3064\u3044\u3066\u3002<\/p>\n

\u76ee\u7684<\/h3>\n

Rust\u306b\u304a\u3051\u308b\u57fa\u672c\u7684\u306a\u69cb\u6587\u306e\u7406\u89e3\u3092\u3059\u308b\u3002<\/p>\n

Rust\u306e\u57fa\u672c\u69cb\u6587\u30b7\u30ea\u30fc\u30ba<\/h1>\n

\u7b2c1\u56de\u21d2Rust\u306e\u57fa\u672c\u69cb\u6587(1)\u3000\u3000URL\uff1ahttps:\/\/qiita.com\/jin237\/items\/b344d3a7e6dfe1056e31
\n\u7b2c2\u56de\u21d2Rust\u306e\u57fa\u672c\u69cb\u6587(2)\u3000\u3000URL:https:\/\/qiita.com\/jin237\/items\/6910b4f803a35f317213
\n\u7b2c3\u56de\u21d2Rust\u306e\u57fa\u672c\u69cb\u6587(3)\u3000\u3000URL\uff1ahttps:\/\/qiita.com\/jin237\/items\/59ef229a4de30cb8203b<\/p>\n

\u5b9a\u6570<\/h1>\n

let\u6587\u3067\u306f\u5909\u6570\u306e\u5b9a\u7fa9\u304c\u3067\u304d\u305f\u304c\u3001\u4eca\u56de\u306f\u300cconst\u6587\u3067\u306f\u5b9a\u6570\u306e\u5b9a\u7fa9\u304c\u3067\u304d\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n

\u6587\u306e\u5f62\u306f\u3001<\/p>\n

const \u540d\u524d: \u578b = \u5b9a\u6570\u5f0f\uff1b\r\n<\/code><\/pre>\n
\u306e\u3088\u3046\u306b\u304b\u304f\u3002
\n\u4f8b\u3092\u5f15\u7528\u3057\u3066\u304f\u308b\u3002(from \u5b9f\u8df5Rust\u5165\u9580\u3000\u8a00\u8a9e\u4ed5\u69d8\u304b\u3089\u958b\u767a\u624b\u6cd5\u307e\u3067 P.227-\u4f8b5)<\/p>\n
const<\/span> SECRET_NUMBER<\/span>:<\/span> i32<\/span> =<\/span> 25<\/span>;<\/span>\r\n<\/code><\/pre>\n
\u5b9a\u6570\u306b\u3064\u3044\u3066\u306f\u305d\u3053\u307e\u3067\u8aac\u660e\u3059\u308b\u3053\u3068\u3082\u306a\u3044\u3002\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u4e00\u5ea6\u8a08\u7b97\u3055\u308c\u3001\u305d\u308c\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u5834\u6240\u306b\u5024\u304c\u57cb\u3081\u8fbc\u307e\u308c\u308b\u3002<\/p>\n
\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570<\/h1>\n
\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u306e\u7279\u5fb4
\n\u30fb\u5909\u6570\u306e\u578b\u306e\u660e\u793a\u3002
\n\u30fb\u30b0\u30ed\u30fc\u30d0\u30eb\u30b9\u30b3\u30fc\u30d7\u3092\u542b\u3080\u3001\u3069\u306e\u30b9\u30b3\u30fc\u30d7\u306b\u3067\u3082\u7f6e\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u3002
\n\u30fb\u5b9a\u7fa9\u3059\u308b\u3068\u304d\u306b\u4f7f\u3046\u5b9a\u6570\u5f0f\u306b\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5024\u304c\u78ba\u5b9a\u3059\u308b\u3082\u306e\u3057\u304b\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002
\n\u3055\u3089\u306b\u306f\u3001mut\u3092\u4f7f\u3046\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002
\n\u4f8b\u3092\u5f15\u7528\u3057\u3066\u304f\u308b\u3002(from \u5b9f\u8df5Rust\u5165\u9580\u3000\u8a00\u8a9e\u4ed5\u69d8\u304b\u3089\u958b\u767a\u624b\u6cd5\u307e\u3067 P.228-\u4f8b7)<\/p>\n
\/\/\u4f8b7<\/span>\r\n\/\/\u5b9a\u7fa9\u306b\u4f7f\u3046\u5024\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5024\u304c\u78ba\u5b9a\u3059\u308b\u3082\u306e\u3067\u306a\u3044\u3068\u3044\u3051\u306a\u3044<\/span>\r\nstatic<\/span> mut<\/span> v<\/span>:<\/span> Option<\/span><<\/span>Vec<\/span><<\/span>i32<\/span>>>=<\/span>None<\/span>;<\/span>\r\n\/\/\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u3092\u6271\u3046\u3068\u304d\u306f\u4ee3\u5165\u3082\u53c2\u7167\u3082unsafe\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067\u884c\u308f\u306a\u3044\u3068\u3044\u3051\u306a\u3044<\/span>\r\nunsafe<\/span>{<\/span>\r\n  \/\/\u4ee3\u5165\u3059\u308b\u3068\u304d\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5024\u304c\u78ba\u5b9a\u3059\u308b\u3082\u306e\u3067\u306a\u304f\u3066\u3082\u3088\u3044\u3002<\/span>\r\n  v<\/span> =<\/span> Some<\/span>(<\/span>vec!<\/span>[<\/span>1<\/span>,<\/span> 2<\/span>,<\/span> 3<\/span>]);<\/span>\r\n  println!<\/span>(<\/span>\"{:?}\"<\/span>,<\/span> v<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u3055\u3044\u3054\u306b<\/h1>\n
\u5b9a\u6570\u3001\u5909\u6570\u4ee5\u5916\u306b\u3082\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u5909\u6570\u304c\u3042\u308b\u3002\u3053\u308c\u306f\u4f7f\u3044\u9053\u306e\u5e45\u304c\u5897\u3048\u308b\u3057\u3001\u51e6\u7406\u3082\u65e9\u304f\u306a\u308b\u306e\u3082\u308f\u304b\u308b\u3002
\n\u57fa\u672c\u69cb\u6587\u30b7\u30ea\u30fc\u30ba\u3067\u306f\u6b21\u306b\u8a08\u7b97\u7cfb(\u6f14\u7b97\u5b50\u306a\u3069)\u3084\u3001\u5206\u5c90(if\u306a\u3069)\u3001\u7e70\u308a\u8fd4\u3057(loop\u306a\u3069)\u306b\u3064\u3044\u3066\u3082\u66f8\u3044\u3066\u3044\u3063\u3066\u5927\u307e\u304b\u306a\u30b3\u30fc\u30c9\u5185\u5bb9\u306e\u6574\u7406\u3092\u66f8\u3044\u3066\u3044\u304f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u306f\u3058\u3081\u306b Rust\u306e\u57fa\u672c\u7684\u306a\u6587\u6cd5\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u307f\u305f\u3002\u7b2c4\u56de\uff01 \u7b2c2,3\u56de\u306f\u5909\u6570(let\u6587)\u306b\u3064\u3044\u3066\u3060\u3063\u305f\u306e\u3067 […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45540","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\/45540-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u306f\u3058\u3081\u306b Rust\u306e\u57fa\u672c\u7684\u306a\u6587\u6cd5\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u307f\u305f\u3002\u7b2c4\u56de\uff01 \u7b2c2,3\u56de\u306f\u5909\u6570(let\u6587)\u306b\u3064\u3044\u3066\u3060\u3063\u305f\u306e\u3067 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45540-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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