{"id":45030,"date":"2023-09-25T15:56:32","date_gmt":"2023-08-30T03:37:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/"},"modified":"2024-05-04T01:31:42","modified_gmt":"2024-05-03T17:31:42","slug":"45030-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/","title":{"rendered":""},"content":{"rendered":"

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

\u3061\u3087\u3063\u3068\u5e74\u672b\u306b\u304b\u3051\u3066\u3001Rust\u3092\u30ac\u30c3\u30c4\u30ea\u66f8\u304f\u6a5f\u4f1a\u304c\u3042\u3063\u305f\u3093\u3067\u3059\u304c\u3001
\nRust\u3092\u89e6\u3063\u305f\u306e\u304c\u4e45\u3005\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u308a\u3001\u7d50\u69cb\u82e6\u6226\u3057\u305f\u90e8\u5206\u3082\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u305d\u3053\u3067\u307e\u305f\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u53c2\u8003\u306b\u306a\u3063\u305f\u8a18\u4e8b\u3092\u3053\u3053\u306b\u307e\u3068\u3081\u3066\u304a\u3053\u3046\u304b\u306a\u3068\u8003\u3048\u307e\u3057\u305f\u3002
\n\u50d5\u306e\u3088\u3046\u306b\u307e\u3060Rust\u521d\u5fc3\u8005\u3067\u3042\u308b\u65b9\u306b\u3068\u3063\u3066\u3082\u53c2\u8003\u306b\u306a\u3063\u305f\u3089\u5e78\u3044\u3067\u3059\u3002<\/p>\n

\u53c2\u8003\u306b\u306a\u3063\u305f\u8a18\u4e8b\u7d39\u4ecb<\/h1>\n

\u30a8\u30e9\u30fc\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b<\/h2>\n

Rust\u3067\u30a8\u30e9\u30fc\u3092\u5408\u6210\u3059\u308b<\/h3>\n

\u3053\u306e\u8a18\u4e8b\u3092\u66f8\u3044\u305f\u304d\u3063\u304b\u3051\u3068\u3044\u3063\u3066\u3082\u3044\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3002
\nResult<T, E>\u3068Result<T’, E’>\u306eE\u3068E’\u3092\u5408\u6210\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8a18\u8ff0\u3055\u308c\u3066\u3044\u308b\u3002
\n\u3053\u308c\u306b\u3064\u3044\u3066\u77e5\u3089\u306a\u3044\u3068Json\u306e\u30c7\u30b7\u30ea\u30a2\u30e9\u30a4\u30ba\u306a\u3069\u3067\u56f0\u308b\u3053\u3068\u306b\u306a\u308b\u3002
\n\u8a18\u4e8b\u306e\u6838\u3068\u306a\u308bfailure\u306e\u30ea\u30dd\u30b8\u30c8\u30ea\u306f\u3053\u3053\u306b\u3042\u308b\u306e\u3067\u3088\u304b\u3063\u305f\u3089\u898b\u3066\u306d\u3002<\/p>\n

Rust\u306eOption\u3068Result<\/h3>\n

Option\u306e\u4fbf\u5229\u30e1\u30bd\u30c3\u30c9\u3068Result\u306e\u4fbf\u5229\u30e1\u30bd\u30c3\u30c9\u3068\u3044\u3046\u306e\u304c\u7279\u306b\u3044\u3044\u3002
\nstd::option::Option\u3084std::result::Result\u3042\u305f\u308a\u306e\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u4e00\u7dd2\u306b\u898b\u308b\u3068\u306a\u304a\u3088\u3044\u3002<\/p>\n

\u30c6\u30b9\u30c8\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b<\/h2>\n

Writing Tests<\/h3>\n

\u65e5\u672c\u8a9e\u7248\u3082\u3042\u308b\u304c\u82f1\u8a9e\u7248\u306e\u307b\u3046\u304c\u82e5\u5e72\u5185\u5bb9\u304c\u3042\u308b\u3002
\n\u30c6\u30b9\u30c8\u306e\u66f8\u304d\u65b9\u306b\u3064\u3044\u3066\u6559\u3048\u3066\u304f\u308c\u308b\u3002
\n\u3042\u3068\u306f\u6709\u540d\u306aRust\u30ea\u30dd\u30b8\u30c8\u30ea\u306etests\u3084.travis.yml\u3092\u898b\u308b\u306e\u304c\u3044\u3044\u3068\u601d\u3046\u3002<\/p>\n

\u6587\u5b57\u5217\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b<\/h2>\n

Rust\u306e\u6587\u5b57\u5217\u64cd\u4f5c<\/h3>\n

\u591a\u5206\u4e00\u756a\u6700\u521d\u306b\u7591\u554f\u306b\u601d\u3046&str\u3068String\u306b\u3064\u3044\u3066\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u308f\u304b\u308a\u3084\u3059\u304f\u89e6\u308c\u3066\u3044\u308b\u3002
\n&str\u306b\u3064\u3044\u3066\u306f\u30e9\u30a4\u30d5\u30bf\u30a4\u30e0\u306a\u3069\u3082\u7d61\u3080\u306e\u3067\u7591\u554f\u306b\u601d\u3063\u305f\u3089\u304d\u3061\u3093\u3068\u6f70\u3057\u3066\u304a\u304d\u305f\u3044\u3002<\/p>\n

[Rust] \u6587\u5b57\u5217\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6307\u5b9a\uff08println! \/ format!\uff09<\/h3>\n

\u30bf\u30a4\u30c8\u30eb\u306e\u307e\u3093\u307e\u6587\u5b57\u5217\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u95a2\u3059\u308b\u8a18\u4e8b\u3002
\n\u3082\u3063\u3068\u8a73\u3057\u304f\u77e5\u308a\u305f\u3051\u308c\u3070std::fmt – Rust\u3042\u305f\u308a\u3092\u53c2\u8003\u306b\u3059\u308b\u3068\u3088\u3044\u3060\u308d\u3046\u3002<\/p>\n

\u30d5\u30a1\u30a4\u30ebI\/O\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b<\/h2>\n

Rust\u3067\u30d5\u30a1\u30a4\u30eb\u306e\u5165\u51fa\u529b<\/h3>\n

\u3053\u308c\u306b\u95a2\u3057\u3066\u306f\u53c2\u8003\u306b\u306a\u3063\u305f\u3068\u3044\u3046\u304b\u4eca\u305f\u307e\u305f\u307e\u300c\u3053\u3046\u3044\u3046\u8a18\u4e8b\u304c\u77e5\u308a\u305f\u304b\u3063\u305f\u3093\u3060\u3088\u306a\u3042\u3002\u300d\u3068\u3044\u3046\u611f\u3058\u3067\u898b\u3064\u3051\u305f\u306e\u3067\u3042\u3052\u3066\u304a\u304d\u307e\u3059\u3002
\n\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u5225\u306bRust\u3067\u306e\u30d5\u30a1\u30a4\u30ebIO\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u3042\u3052\u3066\u3044\u307e\u3059\u3002
\nRust\u306e\u30d5\u30a1\u30a4\u30ebI\/O\u306b\u306fBufReader, BufWriter\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3001\u3068\u3044\u3046\u8a71\u3042\u305f\u308a\u3092\u6700\u521d\u306b\u982d\u306b\u5165\u308c\u3066\u304a\u304f\u3068\u306a\u304a\u3088\u3044\u304b\u3082\u3002<\/p>\n

\u30e2\u30b8\u30e5\u30fc\u30eb\u3068\u30af\u30ec\u30fc\u30c8\u306b\u3064\u3044\u3066\u306e\u8a18\u4e8b<\/h2>\n

Rust\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4f7f\u3044\u65b9 2018 Edition\u7248<\/h3>\n

\u8907\u6570\u30d5\u30a1\u30a4\u30eb\u3092\u6271\u3046\u969b\u306e\u308f\u304b\u308a\u3084\u3059\u3044\u8a18\u4e8b\u304c\u306a\u304b\u306a\u304b\u898b\u5f53\u305f\u3089\u306a\u304b\u3063\u305f\u304c\u3001\u3053\u308c\u306f\u308f\u304b\u308a\u3084\u3059\u3044\u4e0a\u306bRust2018\u306b\u5bfe\u5fdc\u3057\u305f\u5185\u5bb9\u306b\u306a\u3063\u3066\u3044\u308b\u3002
\n\u30d0\u30a4\u30ca\u30ea\u30af\u30ec\u30fc\u30c8\u3068\u30e9\u30a4\u30d6\u30e9\u30ea\u30af\u30ec\u30fc\u30c8\u3067\u3054\u3063\u3061\u3083\u306b\u306a\u3089\u306a\u3051\u308c\u3070\u3042\u3068\u306f\u5927\u4e08\u592b\u3060\u308d\u3046\u3002<\/p>\n

\u305d\u306e\u4ed6<\/h2>\n

Rust Cookbook<\/h3>\n

\u30ab\u30c6\u30b4\u30ea\u5225\u306b\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u306e\u7d39\u4ecb\u304c\u3055\u308c\u3066\u3066\u3044\u307e\u3059\u3002
\n\u30ab\u30d0\u30fc\u7bc4\u56f2\u304c\u5e83\u3081\u306a\u306e\u3067\u56f0\u3063\u305f\u3089\u4e00\u5ea6\u3053\u3053\u3092\u8abf\u3079\u3066\u307f\u308b\u3068\u3044\u3044\u304b\u3082\u3002<\/p>\n

\u3042\u3068\u306f\u5f53\u305f\u308a\u524d\u3067\u3059\u304c\u4f7f\u7528\u3059\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3084examples\u306f\u5f79\u306b\u7acb\u3061\u307e\u3059\u3002\u3044\u3046\u307e\u3067\u3082\u306a\u3044\u3068\u306f\u601d\u3044\u307e\u3059\u304c\u3001\u3001<\/p>\n

\u3055\u3044\u3054\u306b<\/h1>\n

Rust\u306f\u9032\u5316\u3059\u308b\u306e\u304c\u65e9\u3044\u306e\u3067\u6642\u9593\u304c\u7acb\u3063\u305f\u3089\u3082\u3046\u305d\u306e\u65b9\u6cd5\u306f\u53e4\u3044\u3068\u3044\u3046\u3053\u3068\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002
\n\u306a\u306e\u3067\u5f53\u6642\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u304c\u4eca\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3060\u3068\u3044\u3046\u306e\u306f\u602a\u3057\u3044\u3067\u3059\u3002
\n\u6700\u65b0\u306eRust\u3060\u3068\u3053\u3063\u3061\u306e\u65b9\u304c\u3088\u3044\u3068\u3044\u3046\u306e\u3082\u3042\u308b\u3068\u601d\u3046\u306e\u3067\u81ea\u5206\u3067\u3082\u4e00\u5ea6\u8abf\u3079\u3066\u307f\u308b\u3053\u3068\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n

\u3067\u3059\u304c\u3001\u3053\u3053\u3067\u559a\u8d77\u3059\u308b\u306e\u306f\u57fa\u672c\u7684\u306b\u521d\u5fc3\u8005\u306b\u5411\u3051\u3066\u306a\u306e\u3067\u5272\u3068\u666e\u904d\u7684\u5185\u5bb9\u3060\u3068\u306f\u601d\u3063\u3066\u3044\u3066
\n\u521d\u5fc3\u8005\u3060\u3063\u305f\u3089\u305d\u3053\u307e\u3067\u6c17\u306b\u305b\u305a\u307e\u305a\u306f\u66f8\u3044\u3066\u307f\u308b\u3053\u3068\u3082\u3044\u3044\u3068\u306f\u601d\u3046\u306e\u3067\u305d\u3053\u306f\u304a\u307e\u304b\u305b\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u306f\u3058\u3081\u306b \u3061\u3087\u3063\u3068\u5e74\u672b\u306b\u304b\u3051\u3066\u3001Rust\u3092\u30ac\u30c3\u30c4\u30ea\u66f8\u304f\u6a5f\u4f1a\u304c\u3042\u3063\u305f\u3093\u3067\u3059\u304c\u3001 Rust\u3092\u89e6\u3063\u305f\u306e\u304c\u4e45\u3005\u3068\u3044\u3046\u3053 […]<\/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-45030","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\/45030-2\/\" \/>\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 \u3061\u3087\u3063\u3068\u5e74\u672b\u306b\u304b\u3051\u3066\u3001Rust\u3092\u30ac\u30c3\u30c4\u30ea\u66f8\u304f\u6a5f\u4f1a\u304c\u3042\u3063\u305f\u3093\u3067\u3059\u304c\u3001 Rust\u3092\u89e6\u3063\u305f\u306e\u304c\u4e45\u3005\u3068\u3044\u3046\u3053 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-30T03:37:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T17:31:42+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u5b87\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u5b87\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/\",\"name\":\"- Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-08-30T03:37:56+00:00\",\"dateModified\":\"2024-05-03T17:31:42+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/1a6ecd3d914d22a5ac32791ffc1fbd8e\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/45030-2\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - 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