{"id":45250,"date":"2023-04-28T11:37:07","date_gmt":"2023-02-12T22:45:27","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/45250-2\/"},"modified":"2024-04-30T01:41:57","modified_gmt":"2024-04-29T17:41:57","slug":"45250-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/45250-2\/","title":{"rendered":""},"content":{"rendered":"

\u666e\u6bb5Python\u306a\u3069\u3092\u30e1\u30a4\u30f3\u306b\u304a\u4ed5\u4e8b\u3092\u3057\u3066\u3044\u307e\u3059\u304c\u3001Rust\u306e\u3054\u304f\u57fa\u672c\u7684\u306a\u6587\u6cd5\u3084\u6319\u52d5\u306a\u3069\u3092Python\u3068\u6bd4\u8f03\u3057\u3064\u3064\u5b66\u3093\u3067\u3044\u3063\u3066\u307f\u307e\u3059\uff08\u524d\u3082\u5165\u9580\u66f8\u6d88\u5316\u3057\u305f\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u5c11\u3057\u8a18\u4e8b\u306b\u3057\u305f\u308a\u3057\u3066\u3044\u307e\u3059\u304c\u5fa9\u7fd2\u3082\u517c\u306d\u3066\u66f8\u3044\u3066\u304a\u304d\u307e\u3059\uff09\u3002<\/p>\n

\u203bRust\u521d\u5fc3\u8005\u306a\u305f\u3081\u8aa4\u89e3\u3057\u3066\u3044\u308b\u70b9\u306a\u3069\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u8fba\u306f\u3054\u5bb9\u8d66\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u203b\u9577\u304f\u306a\u308a\u305d\u3046\u306a\u306e\u3067\u8a18\u4e8b\u3092\u5206\u5272\u3057\u3066\u3044\u307e\u3059\u3002\u672c\u8a18\u4e8b\u306f3\u8a18\u4e8b\u76ee\u3068\u306a\u308a\u307e\u3059\uff08\u904e\u53bb\u306e\u8a18\u4e8b\u3067\u89e6\u308c\u305f\u70b9\u306f\u30b9\u30ad\u30c3\u30d7\u3057\u307e\u3059\uff09\u3002<\/p>\n

1\u8a18\u4e8b\u76ee:<\/p>\n

 <\/p>\n

2\u8a18\u4e8b\u76ee:<\/p>\n

 <\/p>\n

\u69cb\u9020\u4f53\uff08struct\uff09<\/h1>\n

Python\u306e\u30af\u30e9\u30b9\u306b\u8fd1\u3044\u3082\u306e\u3068\u3057\u3066\u306fRust\u3067\u306f\u69cb\u9020\u4f53\uff08struct\uff09\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306aPython\u306e\u30af\u30e9\u30b9\u3067\u8003\u3048\u3066\u307f\u307e\u3059\u3002<\/p>\n

class<\/span> Cat<\/span>:<\/span>\r\n\r\n    name<\/span>:<\/span> str<\/span>\r\n    age<\/span>:<\/span> int<\/span>\r\n\r\n    def<\/span> __init__<\/span>(<\/span>self<\/span>,<\/span> name<\/span>:<\/span> str<\/span>,<\/span> age<\/span>:<\/span> int<\/span>)<\/span> -><\/span> None<\/span>:<\/span>\r\n        self<\/span>.<\/span>name<\/span> =<\/span> name<\/span>\r\n        self<\/span>.<\/span>age<\/span> =<\/span> age<\/span>\r\n\r\n    def<\/span> increment_age<\/span>(<\/span>self<\/span>)<\/span> -><\/span> None<\/span>:<\/span>\r\n        self<\/span>.<\/span>age<\/span> +=<\/span> 1<\/span>\r\n<\/code><\/pre>\n
Rust\u3067\u4e0a\u8a18\u306e\u30af\u30e9\u30b9\u306b\u8fd1\u3044\u3082\u306e\u3092\u4f5c\u308b\u306b\u306fstruct\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u307e\u3059\uff08\u307e\u305a\u306f\u5c5e\u6027\u5b9a\u7fa9\u3060\u3051\u3057\u3066\u3044\u307e\u3059\uff09\u3002<\/p>\n
struct<\/span> Cat<\/span> {<\/span>\r\n    name<\/span>:<\/span> String<\/span>,<\/span>\r\n    age<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u305f\u3044\u5834\u5408\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a18\u8ff0\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
impl<\/span> \u30af\u30e9\u30b9\u540d<\/span> {<\/span>\r\n    fn<\/span> \u30e1\u30bd\u30c3\u30c9\u540d<\/span>(<\/span>...<\/span>)<\/span> -><\/span> ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5834\u5408\u306fPython\u3060\u3068__init__\u3068\u3044\u3046dunder methods\u3067\u5b9a\u7fa9\u3057\u307e\u3059\u304c\u3001\u3053\u308c\u306fRust\u3067\u306fnew\u304c\u8a72\u5f53\u3059\u308b\u3088\u3046\u3067\u3059\u3002\u305f\u3060\u3057\u6163\u7fd2\u7684\u306a\u3082\u306e\uff08\u66f8\u7c4d\u306a\u3069\u3067\u306f\u5927\u4f53new\u3067\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\uff09\u306e\u3088\u3046\u3067\u5225\u306bnew\u3067\u306f\u306a\u304f\u3068\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u7b49\u306f\u901a\u308b\u3088\u3046\u3067\u3059\u3002Python\u3060\u3068\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u306f\u8fd4\u5374\u5024\u306e\u578b\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306fNone\u3067\u554f\u984c\u7121\u3044\u5f62\u3067\u3057\u305f\u304cRust\u3067\u306f\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\uff08\u4eca\u56de\u306e\u4f8b\u3067\u8a00\u3046\u3068Cat\uff09\u3092\u578b\u3068\u3057\u3066\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001struct\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4f5c\u308b\u969b\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a18\u8ff0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
struct\u540d<\/span> {<\/span>\r\n    \u30d5\u30a3\u30fc\u30eb\u30c9\u540d<\/span>:<\/span> \u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024<\/span>,<\/span>\r\n    ...<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u524d\u8a18\u306ePython\u306e\u30b3\u30fc\u30c9\u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3067\u8a00\u3046\u3068Rust\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Cat<\/span> {<\/span>\r\n    name<\/span>:<\/span> String<\/span>,<\/span>\r\n    age<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> new<\/span>(<\/span>name<\/span>:<\/span> &<\/span>str<\/span>,<\/span> age<\/span>:<\/span> i32<\/span>)<\/span> -><\/span> Cat<\/span> {<\/span>\r\n        return<\/span> Cat<\/span> {<\/span>\r\n            name<\/span>:<\/span> String<\/span>::<\/span>from<\/span>(<\/span>name<\/span>),<\/span>\r\n            age<\/span>:<\/span> age<\/span>,<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u306fPython\u3060\u3068cat: Cat = Cat(name=”\u30df\u30b1”, age=5)\u3068\u3044\u3063\u305f\u3088\u3046\u306a\u8a18\u8ff0\u306b\u306a\u308a\u307e\u3059\u304cRust\u3060\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> cat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>::<\/span>new<\/span>(<\/span>\"\u30df\u30b1\"<\/span>,<\/span> 5<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5c5e\u6027\u306b\u95a2\u3057\u3066\u306f\u30c9\u30c3\u30c8\u3067\u7e4b\u3052\u308b\u5f62\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\uff08\u4f8b : cat.age\uff09\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> cat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>::<\/span>new<\/span>(<\/span>\"\u30df\u30b1\"<\/span>,<\/span> 5<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> cat<\/span>.age<\/span>);<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Cat<\/span> {<\/span>\r\n    name<\/span>:<\/span> String<\/span>,<\/span>\r\n    age<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> new<\/span>(<\/span>name<\/span>:<\/span> &<\/span>str<\/span>,<\/span> age<\/span>:<\/span> i32<\/span>)<\/span> -><\/span> Cat<\/span> {<\/span>\r\n        return<\/span> Cat<\/span> {<\/span>\r\n            name<\/span>:<\/span> String<\/span>::<\/span>from<\/span>(<\/span>name<\/span>),<\/span>\r\n            age<\/span>:<\/span> age<\/span>,<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
5\r\n<\/code><\/pre>\n
\u524d\u8a18\u306ePython\u30b3\u30fc\u30c9\u306b\u3042\u308bincrement_age\u30e1\u30bd\u30c3\u30c9\u306e\u8ffd\u52a0\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u3002Python\u3060\u3068\u30e1\u30bd\u30c3\u30c9\u306b\u306fself\u3068\u3044\u3046\u5f15\u6570\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u304c\u3001Rust\u3067\u306f&self\u3068\u3044\u3046\u5f15\u6570\u3092\u6307\u5b9a\u3059\u308b\u5f62\u306b\u306a\u308a\u307e\u3059\uff08\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5834\u5408\u306b\u306fPython\u3068\u7570\u306a\u308a\u5f15\u6570\u3078\u306e\u6307\u5b9a\u306f\u8981\u3089\u306a\u3044\u3088\u3046\u3067\u3059\uff09\u3002<\/p>\n
\u203b\u4f8b\u5916\u7684\u306bCopy\u30c8\u30ec\u30a4\u30c8\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\u306a\u3069\u306b&self\u3067\u306f\u306a\u304fself\u3068\u6307\u5b9a\u3059\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308b\u3088\u3046\u3067\u3059\u304c\u57fa\u672c\u7684\u306b\u306f&self\u3068\u306a\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u5c5e\u6027\u306e\u66f4\u65b0\u3092\u884c\u3044\u305f\u3044\u5834\u5408\u306b\u306f\u5f15\u6570\u90e8\u5206\u3092& mut self\u3068\u3044\u3063\u305f\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5316\u306e\u969b\u306b\u3082\u5909\u6570\u306bmut\u306e\u6307\u5b9a\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> cat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>::<\/span>new<\/span>(<\/span>\"\u30df\u30b1\"<\/span>,<\/span> 5<\/span>);<\/span>\r\n    cat<\/span>.increment_age<\/span>();<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> cat<\/span>.age<\/span>);<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Cat<\/span> {<\/span>\r\n    name<\/span>:<\/span> String<\/span>,<\/span>\r\n    age<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> new<\/span>(<\/span>name<\/span>:<\/span> &<\/span>str<\/span>,<\/span> age<\/span>:<\/span> i32<\/span>)<\/span> -><\/span> Cat<\/span> {<\/span>\r\n        return<\/span> Cat<\/span> {<\/span>\r\n            name<\/span>:<\/span> String<\/span>::<\/span>from<\/span>(<\/span>name<\/span>),<\/span>\r\n            age<\/span>:<\/span> age<\/span>,<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n    fn<\/span> increment_age<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>)<\/span> {<\/span>\r\n        self<\/span>.age<\/span> +=<\/span> 1<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
6\r\n<\/code><\/pre>\n
\u30c8\u30ec\u30a4\u30c8\u306e\u5229\u7528<\/h1>\n
Rust\u306b\u306f\u30c8\u30ec\u30a4\u30c8\u3068\u3044\u3046\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306fPython\u3067\u8a00\u3046\u3068\u3053\u308d\u306e\u62bd\u8c61\u30af\u30e9\u30b9\u306b\u3088\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068\u4f3c\u305f\u3088\u3046\u306a\u6319\u52d5\u3092\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u30e1\u30bd\u30c3\u30c9\u5185\u90e8\u306e\u51e6\u7406\u306e\u5b9f\u88c5\u306f\u542b\u307e\u306a\u3044\u3082\u306e\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3084\u8fd4\u5374\u5024\u306e\u69cb\u9020\u306a\u3069\u3092\u4e8b\u524d\u306b\u5b9a\u7fa9\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
Python\u3060\u3068abc\uff08abstract base class\uff09\u30d1\u30c3\u30b1\u30fc\u30b8\u306eABC\u3068abstractmethod\u3092\u4f7f\u3063\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u7528\u306e\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u3089@abstractmethod\u306e\u30c7\u30b3\u30ec\u30fc\u30bf\u30fc\u304c\u4ed8\u3044\u3066\u3044\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\u5f62\u3067\u30e1\u30bd\u30c3\u30c9\u5185\u90e8\u306e\u5b9f\u88c5\u3092\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
from<\/span> abc<\/span> import<\/span> ABC<\/span>,<\/span> abstractmethod<\/span>\r\n\r\n\r\nclass<\/span> AgeInterface<\/span>(<\/span>ABC<\/span>):<\/span>\r\n    @abstractmethod<\/span>\r\n    def<\/span> increment_age<\/span>(<\/span>self<\/span>)<\/span> -><\/span> None<\/span>:<\/span>\r\n        ...<\/span>\r\n\r\n\r\nclass<\/span> Cat<\/span>(<\/span>AgeInterface<\/span>):<\/span>\r\n\r\n    name<\/span>:<\/span> str<\/span>\r\n    age<\/span>:<\/span> int<\/span>\r\n\r\n    def<\/span> __init__<\/span>(<\/span>self<\/span>,<\/span> name<\/span>:<\/span> str<\/span>,<\/span> age<\/span>:<\/span> int<\/span>)<\/span> -><\/span> None<\/span>:<\/span>\r\n        self<\/span>.<\/span>name<\/span> =<\/span> name<\/span>\r\n        self<\/span>.<\/span>age<\/span> =<\/span> age<\/span>\r\n\r\n    def<\/span> increment_age<\/span>(<\/span>self<\/span>)<\/span> -><\/span> None<\/span>:<\/span>\r\n        self<\/span>.<\/span>age<\/span> +=<\/span> 1<\/span>\r\n\r\n\r\ncat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>(<\/span>name<\/span>=<\/span>\"<\/span>\u30df\u30b1<\/span>\"<\/span>,<\/span> age<\/span>=<\/span>5<\/span>)<\/span>\r\n<\/code><\/pre>\n
Rust\u306e\u30c8\u30ec\u30a4\u30c8\u3067\u306f\u307e\u305a\u5b9a\u7fa9\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a18\u8ff0\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u8eab\u306f\u8a18\u8ff0\u3057\u307e\u305b\u3093\u3002<\/p>\n
trait<\/span> AgeTrait<\/span> {<\/span>\r\n    fn<\/span> increment_age<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u305d\u306e\u5f8c\u306bimpl \u5bfe\u8c61\u30c8\u30ec\u30a4\u30c8\u540d for \u69cb\u9020\u4f53\u540d\u3068\u3044\u3063\u305f\u8a18\u8ff0\u3092\u884c\u3044\u3001\u305d\u306e\u4e2d\u306b\u30e1\u30bd\u30c3\u30c9\u306e\u5b9f\u88c5\u306e\u4e2d\u8eab\u3092\u66f8\u304d\u307e\u3059\u3002<\/p>\n
impl<\/span> AgeTrait<\/span> for<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> increment_age<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>)<\/span> {<\/span>\r\n        self<\/span>.age<\/span> +=<\/span> 1<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u30b3\u30fc\u30c9\u5168\u4f53\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> cat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>::<\/span>new<\/span>(<\/span>\"\u30df\u30b1\"<\/span>,<\/span> 5<\/span>);<\/span>\r\n    cat<\/span>.increment_age<\/span>();<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> cat<\/span>.age<\/span>);<\/span>\r\n}<\/span>\r\n\r\nstruct<\/span> Cat<\/span> {<\/span>\r\n    name<\/span>:<\/span> String<\/span>,<\/span>\r\n    age<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\ntrait<\/span> AgeTrait<\/span> {<\/span>\r\n    fn<\/span> increment_age<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>);<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> new<\/span>(<\/span>name<\/span>:<\/span> &<\/span>str<\/span>,<\/span> age<\/span>:<\/span> i32<\/span>)<\/span> -><\/span> Cat<\/span> {<\/span>\r\n        return<\/span> Cat<\/span> {<\/span>\r\n            name<\/span>:<\/span> String<\/span>::<\/span>from<\/span>(<\/span>name<\/span>),<\/span>\r\n            age<\/span>:<\/span> age<\/span>,<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nimpl<\/span> AgeTrait<\/span> for<\/span> Cat<\/span> {<\/span>\r\n    fn<\/span> increment_age<\/span>(<\/span>&<\/span>mut<\/span> self<\/span>)<\/span> {<\/span>\r\n        self<\/span>.age<\/span> +=<\/span> 1<\/span>;<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
6\r\n<\/code><\/pre>\n
\u7279\u5b9a\u306e\u95a2\u6570\u3084\u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3084\u8fd4\u5374\u306e\u578b\u306e\u6307\u5b9a\u3067\u3053\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5bfe\u8c61\u306e\u30c8\u30ec\u30a4\u30c8\u3092\u6301\u3063\u3066\u3044\u308b\u69cb\u9020\u4f53\u3067\u3042\u308c\u3070\u306a\u3093\u3067\u3082\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u95a2\u6570\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff08\u5f15\u6570\u306e\u578b\u306e\u90e8\u5206\u306bimpl\u306a\u3069\u306e\u8a18\u8ff0\u304c\u5fc5\u8981\u306a\u3088\u3046\u3067\u3059\uff09\u3002<\/p>\n
fn<\/span> increment_age_10<\/span>(<\/span>animal<\/span>:<\/span> &<\/span>mut<\/span> impl<\/span> AgeTrait<\/span>)<\/span> {<\/span>\r\n    for<\/span> _<\/span> in<\/span> 0<\/span>..<\/span>10<\/span> {<\/span>\r\n        animal<\/span>.increment_age<\/span>();<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u547c\u3073\u51fa\u3057\u5143\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a18\u8ff0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> cat<\/span>:<\/span> Cat<\/span> =<\/span> Cat<\/span>::<\/span>new<\/span>(<\/span>\"\u30df\u30b1\"<\/span>,<\/span> 5<\/span>);<\/span>\r\n    increment_age_10<\/span>(<\/span>&<\/span>mut<\/span> cat<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> cat<\/span>.age<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
15\r\n<\/code><\/pre>\n
Rust\u3068\u30de\u30af\u30ed<\/h1>\n
\u4eca\u307e\u3067\u3082Rust\u306e\u8a18\u4e8b\u3092\u66f8\u304f\u969b\u306b\u3082\u30de\u30af\u30ed\u3092\u4f7f\u3063\u3066\u304d\u307e\u3057\u305f\uff08\u672b\u5c3e\u306b!\u304c\u4ed8\u304f\u3082\u306e\u3067\u3059\u306d\uff09\u3002\u7279\u306bprintln!\u306e\u30de\u30af\u30ed\u306f\u591a\u304f\u5229\u7528\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u5c11\u3005\u4ed6\u306e\u8a00\u8a9e\u3067\u306fRust\u306e\u30de\u30af\u30ed\u98a8\u306a\u6a5f\u80fd\u306b\u6163\u308c\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u5c11\u3005\u3068\u3063\u3064\u304d\u306b\u304f\u3044\u3068\u306f\u611f\u3058\u3066\u3044\u307e\u3059\u304c\u8efd\u304f\u3060\u3051\u89e6\u308c\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n
\u4eca\u307e\u3067\u3082\u30de\u30af\u30ed\u3092\u4f7f\u3063\u3066\u304d\u3066\u3068\u308a\u3042\u3048\u305aprintln!\u30de\u30af\u30ed\u306e\u3088\u3046\u306b\u95a2\u6570\u306e\u3088\u3046\u306b\u4f7f\u3048\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u611f\u3058\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u307e\u305a\u306f\u95a2\u6570\u3068\u30de\u30af\u30ed\u306e\u9055\u3044\u306b\u3064\u3044\u3066\u89e6\u308c\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
\u95a2\u6570\u306f\u304a\u99b4\u67d3\u307f\u3067\u5f15\u6570\u3092\u53d7\u3051\u53d6\u3063\u3066\u5fc5\u8981\u306a\u5834\u5408\u306f\u7d50\u679c\u306e\u8fd4\u5374\u5024\u3092\u8fd4\u3057\u307e\u3059\u3002\u4e00\u65b9\u3067\u30de\u30af\u30ed\u306fRust\u306e\u69cb\u6587\u3092\u53d7\u3051\u53d6\u3063\u3066\u305d\u3057\u3066Rust\u306e\u69cb\u6587\u3092\u8fd4\u5374\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u5b9f\u884c\u4e2d\u306b\u547c\u3070\u308c\u308b\u306e\u3067\u306f\u306a\u304f\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u5c55\u958b\u3055\u308c\u308b\uff08\u95a2\u6570\u306e\u3088\u3046\u306b\u6b8b\u3089\u305a\u3001\u30de\u30af\u30ed\u306e\u5185\u5bb9\u304c\u8a72\u5f53\u306e\u51e6\u7406\u306e\u7b87\u6240\u306b\u5c55\u958b\u3055\u308c\u308b\uff09\u3088\u3046\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u5185\u5bb9\u306b\u3088\u3063\u3066\u306f\u95a2\u6570\u306a\u3069\u3088\u308a\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u5f8c\u306e\u30b5\u30a4\u30ba\u304c\u5927\u304d\u304f\u306a\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308b\u3088\u3046\u3067\u3059\uff08\u30de\u30af\u30ed\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308bRust\u306e\u69cb\u6587\u304c\u591a\u3044\u5834\u5408\u306a\u3069\uff09\u3002<\/p>\n
\u307e\u305f\u3001\u5404\u6240\u306e\u8a18\u4e8b\u3092\u8aad\u3093\u3060\u611f\u3058\u3067\u306f\u57fa\u672c\u7684\u306b\u306f\u30de\u30af\u30ed\u306f\u5fc5\u8981\u306a\u3051\u308c\u3070\u4f7f\u308f\u306a\u304f\u3066\u826f\u3055\u305d\u3046\u30fb\u30fb\u30fb\u305f\u3060\u3057\u5411\u3044\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308b\u306e\u3067\u305d\u3046\u3044\u3063\u305f\u969b\u306b\u306f\u4f7f\u3063\u3066\u3044\u304f\u3068\u8272\u3005\u4fbf\u5229\u305d\u3046\u30fb\u30fb\u30fb\u3068\u3044\u3046\u5370\u8c61\u3092\u53d7\u3051\u307e\u3057\u305f\u3002<\/p>\n
\u57fa\u672c\u7684\u306a\u66f8\u304d\u65b9\u3068\u3057\u3066\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u611f\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
macro_rules!<\/span> \u30de\u30af\u30ed\u540d<\/span> {<\/span>\r\n    (<\/span>\u5f15\u6570\u3068\u3057\u3066\u6307\u5b9a\u3059\u308bRust\u306e\u69cb\u6587<\/span>)<\/span> =><\/span> {<\/span>\r\n        \u5c55\u958b\u3059\u308b\u69cb\u6587\u5185\u5bb9<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4f8b\u3048\u3070\u96d1\u3067\u3059\u304c\u5f15\u6570\u306b\u6307\u5b9a\u3055\u308c\u305f\u69cb\u6587\u3092\u53c2\u7167\u3057\u3066\u5185\u5bb9\u3092\u51fa\u529b\u3059\u308bprint_value\u3068\u3044\u3046\u30de\u30af\u30ed\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a18\u8ff0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
macro_rules!<\/span> print_value<\/span> {<\/span>\r\n    (<\/span>$x<\/span>:<\/span> expr<\/span>)<\/span> =><\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"value is: {}\"<\/span>,<\/span> $x<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> int_value<\/span>:<\/span> i32<\/span> =<\/span> 42<\/span>;<\/span>\r\n    print_value!<\/span>(<\/span>int_value<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
expr\u90e8\u5206\u306f\u578b\u306e\u6307\u5b9a\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u69cb\u6587\u89e3\u6790\u306b\u4f7f\u308f\u308c\u308b\u3088\u3046\u3067\u3059\u3002expr\u306f\u5f0f\u306e\u30ea\u30c6\u30e9\u30eb\u3084\u5909\u6570\u3001\u95a2\u6570\u547c\u3073\u51fa\u3057\u306a\u3069\u306e\u8868\u73fe\u306e\u69cb\u6587\u304c\u8a72\u5f53\u3059\u308b\u3088\u3046\u3067\u3059\u3002\u4ed6\u306b\u3082\u8b58\u5225\u5b50\u306eident\u3068\u304b\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306estmt\u306a\u3069\u69d8\u3005\u306a\u3082\u306e\u304c\u5b58\u5728\u3059\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n
\u524d\u8ff0\u306e\u30b3\u30fc\u30c9\u306e\u30de\u30af\u30ed\u3067\u306fprint_value!(int_value);\u90e8\u5206\u304c\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30de\u30af\u30ed\u5074\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u69cb\u6587\u304c\u4f7f\u308f\u308c\u3066println!(“value is: {}”, int_value);\u3068\u3044\u3046\u69cb\u6587\u306b\u5c55\u958b\u3055\u308c\u308b\u30fb\u30fb\u30fb\u3068\u3044\u3046\u5177\u5408\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n
\u7d50\u679c\u3068\u3057\u3066\u95a2\u6570\u3092\u547c\u3073\u51fa\u3059\u306e\u3068\u540c\u3058\u3088\u3046\u306a\u611f\u899a\u3067\u7d50\u679c\u304c\u51fa\u529b\u3055\u308c\u307e\u3059\u3002<\/p>\n
value is: 42\r\n<\/code><\/pre>\n
\u307e\u305f\u3001\u95a2\u6570\u306a\u3069\u306f\u547c\u3073\u51fa\u3057\u5143\u3088\u308a\u3082\u5f8c\u306b\u66f8\u3044\u3066\u3082\u52d5\u4f5c\u3057\u307e\u3059\u304c\u30de\u30af\u30ed\u3067\u306f\u524d\u306b\u66f8\u304b\u306a\u3044\u3068\u5f3e\u304b\u308c\u308b\uff1f\u3088\u3046\u3067\u3059\u3002\u3053\u308c\u306f\u69cb\u6587\u5c55\u958b\u306e\u90fd\u5408\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n
\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3067\u306f\u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
fn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> int_value<\/span>:<\/span> i32<\/span> =<\/span> 42<\/span>;<\/span>\r\n    print_value!<\/span>(<\/span>int_value<\/span>);<\/span>\r\n}<\/span>\r\n\r\nmacro_rules!<\/span> print_value<\/span> {<\/span>\r\n    (<\/span>$x<\/span>:<\/span> expr<\/span>)<\/span> =><\/span> {<\/span>\r\n        println!<\/span>(<\/span>\"value is: {}\"<\/span>,<\/span> $x<\/span>);<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
error: cannot find macro `print_value` in this scope\r\n --> src\\main.rs:3:5\r\n  |\r\n3 |     print_value!(int_value);\r\n  |     ^^^^^^^^^^^\r\n  |\r\n  = help: have you added the `#[macro_use]` on the module\/import?\r\n<\/code><\/pre>\n
\u305d\u306e\u4ed6\u672c\u8a18\u4e8b\u3067\u306f\u8a73\u3057\u304f\u306f\u89e6\u308c\u307e\u305b\u3093\u304c\u30de\u30af\u30ed\u3067\u306fPython\u306e\u30c7\u30b3\u30ec\u30fc\u30bf\u30fc\u306e\u3088\u3046\u306a\u4f7f\u3044\u65b9\u3082\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002\u3053\u3061\u3089\u306f\u5c5e\u6027\u30de\u30af\u30ed\u306a\u3069\u3068\u3044\u3063\u305f\u547c\u3070\u308c\u65b9\u3092\u3057\u3066\u3044\u308b\uff1f\u3088\u3046\u3067\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u6574\u6570\u306a\u3069\u306e\u6570\u5024\u306fCopy\u30c8\u30ec\u30a4\u30c8\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u3067\u5225\u306e\u5909\u6570\u3092\u30a2\u30b5\u30a4\u30f3\u3059\u308b\u3068\u30b3\u30d4\u30fc\u304c\u8d70\u3063\u3066\u305d\u308c\u305e\u308c\u306e\u5909\u6570\u306e\u66f4\u65b0\u306a\u3069\u306f\u6240\u6709\u6a29\u3092\u3042\u307e\u308a\u610f\u8b58\u305b\u305a\u306b\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u306f\u524d\u8a18\u4e8b\u306a\u3069\u3067\u89e6\u308c\u307e\u3057\u305f\u304c\u3001\u4e00\u65b9\u3066struct\u306a\u3069\u306e\u69cb\u9020\u4f53\u306fCopy\u30c8\u30ec\u30a4\u30c8\u3092\u6301\u3063\u3066\u304a\u3089\u305a\u8a18\u8ff0\u306b\u3088\u3063\u3066\u306f\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
struct<\/span> Point<\/span> {<\/span>\r\n    x<\/span>:<\/span> i32<\/span>,<\/span>\r\n    y<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> point_1<\/span>:<\/span> Point<\/span> =<\/span> Point<\/span> {<\/span> x<\/span>:<\/span> 100<\/span>,<\/span> y<\/span>:<\/span> 200<\/span> };<\/span>\r\n    let<\/span> mut<\/span> point_2<\/span>:<\/span> Point<\/span> =<\/span> point_1<\/span>;<\/span>\r\n    point_1<\/span>.x<\/span> =<\/span> 300<\/span>;<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
error[E0382]: assign to part of moved value: `point_1`\r\n --> src\\main.rs:9:5\r\n  |\r\n7 |     let mut point_1: Point = Point { x: 100, y: 200 };\r\n  |         ----------- move occurs because `point_1` has type `Point`, which does not implement the `Copy` trait\r\n8 |     let mut point_2: Point = point_1;\r\n  |                              ------- value moved here\r\n9 |     point_1.x = 300;\r\n  |     ^^^^^^^^^^^^^^^ value partially assigned here after move\r\n<\/code><\/pre>\n
\u3053\u3046\u3044\u3063\u305f\u30b1\u30fc\u30b9\u306b#[derive(Clone, Copy)]\u3068\u3044\u3046\u8a18\u8ff0\u3092\u30c7\u30b3\u30ec\u30fc\u30bf\u30fc\u306e\u3088\u3046\u306bstruct\u306b\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067Copy\u30c8\u30ec\u30a4\u30c8\u3092\u6301\u3064\u5f62\u3068\u306a\u3063\u3066\u30a8\u30e9\u30fc\u7121\u304f\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
#[derive(Clone,<\/span> Copy)]<\/span>\r\nstruct<\/span> Point<\/span> {<\/span>\r\n    x<\/span>:<\/span> i32<\/span>,<\/span>\r\n    y<\/span>:<\/span> i32<\/span>,<\/span>\r\n}<\/span>\r\n\r\nfn<\/span> main<\/span>()<\/span> {<\/span>\r\n    let<\/span> mut<\/span> point_1<\/span>:<\/span> Point<\/span> =<\/span> Point<\/span> {<\/span> x<\/span>:<\/span> 100<\/span>,<\/span> y<\/span>:<\/span> 200<\/span> };<\/span>\r\n    let<\/span> mut<\/span> point_2<\/span>:<\/span> Point<\/span> =<\/span> point_1<\/span>;<\/span>\r\n    point_1<\/span>.x<\/span> =<\/span> 300<\/span>;<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> point_1<\/span>.x<\/span>);<\/span>\r\n    println!<\/span>(<\/span>\"{}\"<\/span>,<\/span> point_2<\/span>.x<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
300\r\n100\r\n<\/code><\/pre>\n
derive\u30de\u30af\u30ed\u306fRust\u306e\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306eCopy\u306a\u3069\u306e\u30c8\u30ec\u30a4\u30c8\u306e\u5b9f\u88c5\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b\u5c5e\u6027\u30de\u30af\u30ed\u30fb\u30fb\u30fb\u3068\u3044\u3063\u305f\u6319\u52d5\u3092\u3059\u308b\u3088\u3046\u3067\u3059\u3002Python\u306e\u30c7\u30b3\u30ec\u30fc\u30bf\u30fc\u3082\u6700\u521d\u3068\u3063\u3064\u304d\u306b\u304f\u304b\u3063\u305f\u3067\u3059\u304c\u6163\u308c\u305f\u3089\u975e\u5e38\u306b\u4fbf\u5229\u3060\u3063\u305f\u305f\u3081\u3001\u3053\u306e\u8fba\u306e\u30de\u30af\u30ed\u3082\u5c06\u6765\u5fc5\u8981\u306b\u306a\u3063\u3066\u304d\u305f\u3089\u6df1\u5800\u308a\u3057\u3066\u52c9\u5f37\u3057\u3066\u3044\u3053\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n
\u53c2\u8003\u6587\u732e\u30fb\u53c2\u8003\u30b5\u30a4\u30c8\u306a\u3069<\/h1>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
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