{"id":45549,"date":"2023-10-27T22:02:12","date_gmt":"2022-11-12T16:34:15","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45549-2\/"},"modified":"2024-05-04T06:19:19","modified_gmt":"2024-05-03T22:19:19","slug":"45549-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45549-2\/","title":{"rendered":""},"content":{"rendered":"

\u8cea\u554f1: Rust\u8a00\u8a9e\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h4>\n

\u56de\u7b541:<\/h4>\n
\n

Rust\u8a00\u8a9e\u306b\u304a\u3051\u308b\u30c8\u30ec\u30a4\u30c8\uff08Trait\uff09\u3068\u306f\u3001\u578b\u306b\u5bfe\u3059\u308b\u6a5f\u80fd\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306e\u6a5f\u80fd\u3067\u3059\u3002\u30c8\u30ec\u30a4\u30c8\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3084\u62bd\u8c61\u30af\u30e9\u30b9\u306b\u4f3c\u305f\u3082\u306e\u3067\u3042\u308a\u3001\u5171\u901a\u306e\u6a5f\u80fd\u3092\u62bd\u8c61\u5316\u3057\u3066\u8907\u6570\u306e\u578b\u3067\u518d\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

Rust\u3067\u306f\u3001\u30c8\u30ec\u30a4\u30c8\u306ftrait\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002\u30c8\u30ec\u30a4\u30c8\u306e\u5b9a\u7fa9\u306b\u306f\u3001\u30e1\u30bd\u30c3\u30c9\u3084\u95a2\u9023\u578b\u306a\u3069\u306e\u8981\u7d20\u3092\u542b\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u306f\u3001\u30c8\u30ec\u30a4\u30c8\u306e\u7c21\u5358\u306a\u4f8b\u3067\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001Shape\u30c8\u30ec\u30a4\u30c8\u3092\u5b9a\u7fa9\u3057\u3066\u3001\u305d\u308c\u3092\u5b9f\u88c5\u3059\u308bCircle\u69cb\u9020\u4f53\u3068Square\u69cb\u9020\u4f53\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

trait<\/span> Shape<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span>;<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Circle<\/span> {<\/span>\r\n    radius<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Shape<\/span> for<\/span> Circle<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        std<\/span>::<\/span>f64<\/span>::<\/span>consts<\/span>::<\/span>PI<\/span> *<\/span> self<\/span>.radius<\/span> *<\/span> self<\/span>.radius<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Square<\/span> {<\/span>\r\n    side_length<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Shape<\/span> for<\/span> Square<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        self<\/span>.side_length<\/span> *<\/span> self<\/span>.side_length<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> circle<\/span> =<\/span> Circle<\/span> {<\/span> radius<\/span>:<\/span> 2.0<\/span> };<\/span>\r\n    let<\/span> square<\/span> =<\/span> Square<\/span> {<\/span> side_length<\/span>:<\/span> 3.0<\/span> };<\/span>\r\n    \r\n    println!<\/span>(<\/span>\"Area of circle: {}\"<\/span>,<\/span> circle<\/span>.area<\/span>());<\/span>\r\n    println!<\/span>(<\/span>\"Area of square: {}\"<\/span>,<\/span> square<\/span>.area<\/span>());<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001Shape\u30c8\u30ec\u30a4\u30c8\u3092\u5b9a\u7fa9\u3057\u3001\u305d\u306e\u30c8\u30ec\u30a4\u30c8\u306b\u306farea()\u30e1\u30bd\u30c3\u30c9\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002Circle\u69cb\u9020\u4f53\u3068Square\u69cb\u9020\u4f53\u306f\u3001\u305d\u308c\u305e\u308cShape\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u304a\u308a\u3001area()\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001main()\u95a2\u6570\u30672\u3064\u306e\u69cb\u9020\u4f53\u306e\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u3066\u5370\u5237\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n
\u8cea\u554f2: Rust\u8a00\u8a9e\u306e\u30c8\u30ec\u30a4\u30c8\u306e\u4f7f\u3044\u65b9\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h4>\n
\u56de\u7b542:<\/h4>\n
\n
Rust\u8a00\u8a9e\u3067\u306f\u3001\u30c8\u30ec\u30a4\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u306a\u30b3\u30fc\u30c9\u3092\u8a18\u8ff0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c8\u30ec\u30a4\u30c8\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3069\u306e\u3088\u3046\u306a\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u5b9f\u88c5\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u3084\u95a2\u6570\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30c8\u30ec\u30a4\u30c8\u306f\u3001\u30af\u30e9\u30b9\u3084\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u4f3c\u305f\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u304c\u3001Rust\u3067\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306e\u4ee3\u308f\u308a\u306b\u30c8\u30ec\u30a4\u30c8\u6307\u5411\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u30c8\u30ec\u30a4\u30c8\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002<\/p>\n
trait<\/span> TraitName<\/span> {<\/span>\r\n    \/\/ \u30e1\u30bd\u30c3\u30c9\u5b9a\u7fa9<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n
struct<\/span> StructName<\/span> {<\/span>\r\n    \/\/ \u69cb\u9020\u4f53\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u5b9a\u7fa9<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> TraitName<\/span> for<\/span> StructName<\/span> {<\/span>\r\n    \/\/ TraitName\u30c8\u30ec\u30a4\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5b9f\u88c5<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u4e0b\u306f\u3001\u30c8\u30ec\u30a4\u30c8\u3092\u4f7f\u7528\u3057\u305f\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u306a\u95a2\u6570\u306e\u4f8b\u3067\u3059\u3002<\/p>\n
trait<\/span> HasArea<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span>;<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Circle<\/span> {<\/span>\r\n    x<\/span>:<\/span> f64<\/span>,<\/span>\r\n    y<\/span>:<\/span> f64<\/span>,<\/span>\r\n    radius<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> HasArea<\/span> for<\/span> Circle<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        std<\/span>::<\/span>f64<\/span>::<\/span>consts<\/span>::<\/span>PI<\/span> *<\/span> (<\/span>self<\/span>.radius<\/span> *<\/span> self<\/span>.radius<\/span>)<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Square<\/span> {<\/span>\r\n    x<\/span>:<\/span> f64<\/span>,<\/span>\r\n    y<\/span>:<\/span> f64<\/span>,<\/span>\r\n    side<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> HasArea<\/span> for<\/span> Square<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        self<\/span>.side<\/span> *<\/span> self<\/span>.side<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> print_area<\/span><<\/span>T<\/span>:<\/span> HasArea<\/span>><\/span>(<\/span>shape<\/span>:<\/span> T<\/span>)<\/span> {<\/span>\r\n    println!<\/span>(<\/span>\"This shape has an area of {}\"<\/span>,<\/span> shape<\/span>.area<\/span>());<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> circle<\/span> =<\/span> Circle<\/span> {<\/span> x<\/span>:<\/span> 0.0<\/span>,<\/span> y<\/span>:<\/span> 0.0<\/span>,<\/span> radius<\/span>:<\/span> 1.0<\/span> };<\/span>\r\n    let<\/span> square<\/span> =<\/span> Square<\/span> {<\/span> x<\/span>:<\/span> 0.0<\/span>,<\/span> y<\/span>:<\/span> 0.0<\/span>,<\/span> side<\/span>:<\/span> 2.0<\/span> };<\/span>\r\n    print_area<\/span>(<\/span>circle<\/span>);<\/span>\r\n    print_area<\/span>(<\/span>square<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001HasArea \u3068\u3044\u3046\u30c8\u30ec\u30a4\u30c8\u304c\u5b9a\u7fa9\u3055\u308c\u3001Circle \u69cb\u9020\u4f53\u3068 Square \u69cb\u9020\u4f53\u304c HasArea \u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002print_area \u95a2\u6570\u306f\u3001HasArea \u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3069\u3093\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3082\u5f15\u6570\u306b\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u95a2\u6570\u5185\u3067\u306f\u3001\u5f15\u6570\u306b\u6e21\u3055\u308c\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e area \u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n
\u8cea\u554f3: Rust\u8a00\u8a9e\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h4>\n
\u56de\u7b543:<\/h4>\n
\n
\u4ee5\u4e0b\u306fRust\u8a00\u8a9e\u3067\u30c8\u30ec\u30a4\u30c8\u3092\u4f7f\u7528\u3057\u305f\u4f8b\u3067\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001 Shape \u30c8\u30ec\u30a4\u30c8\u3092\u5b9a\u7fa9\u3057\u3001\u305d\u308c\u3092\u5b9f\u88c5\u3059\u308b Circle \u3068 Rectangle \u69cb\u9020\u4f53\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
trait<\/span> Shape<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span>;<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Circle<\/span> {<\/span>\r\n    radius<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Shape<\/span> for<\/span> Circle<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        std<\/span>::<\/span>f64<\/span>::<\/span>consts<\/span>::<\/span>PI<\/span> *<\/span> (<\/span>self<\/span>.radius<\/span> *<\/span> self<\/span>.radius<\/span>)<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Rectangle<\/span> {<\/span>\r\n    width<\/span>:<\/span> f64<\/span>,<\/span>\r\n    height<\/span>:<\/span> f64<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Shape<\/span> for<\/span> Rectangle<\/span> {<\/span>\r\n    fn<\/span> area<\/span>(<\/span>&<\/span>self<\/span>)<\/span> -><\/span> f64<\/span> {<\/span>\r\n        self<\/span>.width<\/span> *<\/span> self<\/span>.height<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> circle<\/span> =<\/span> Circle<\/span> {<\/span> radius<\/span>:<\/span> 2.0<\/span> };<\/span>\r\n    let<\/span> rectangle<\/span> =<\/span> Rectangle<\/span> {<\/span> width<\/span>:<\/span> 3.0<\/span>,<\/span> height<\/span>:<\/span> 4.0<\/span> };<\/span>\r\n\r\n    println!<\/span>(<\/span>\"The area of the circle is {}\"<\/span>,<\/span> circle<\/span>.area<\/span>());<\/span>\r\n    println!<\/span>(<\/span>\"The area of the rectangle is {}\"<\/span>,<\/span> rectangle<\/span>.area<\/span>());<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u3053\u306e\u4f8b\u3067\u306f\u3001 Shape \u30c8\u30ec\u30a4\u30c8\u306f area \u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002 Circle \u3068 Rectangle \u69cb\u9020\u4f53\u306f\u3001 Shape \u30c8\u30ec\u30a4\u30c8\u3092\u5b9f\u88c5\u3057\u3066\u304a\u308a\u3001\u305d\u308c\u305e\u308c area \u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002 main \u95a2\u6570\u3067\u306f\u3001 Circle \u3068 Rectangle \u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u9762\u7a4d\u3092\u8a08\u7b97\u3057\u3066\u51fa\u529b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\n","protected":false},"excerpt":{"rendered":"
\u8cea\u554f1: Rust\u8a00\u8a9e\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002 \u56de\u7b541: Rust\u8a00\u8a9e\u306b\u304a\u3051\u308b\u30c8\u30ec\u30a4\u30c8\uff08Trait\uff09\u3068\u306f\u3001 […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-45549","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\/45549-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u8cea\u554f1: Rust\u8a00\u8a9e\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002 \u56de\u7b541: Rust\u8a00\u8a9e\u306b\u304a\u3051\u308b\u30c8\u30ec\u30a4\u30c8\uff08Trait\uff09\u3068\u306f\u3001 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/45549-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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