{"id":44957,"date":"2023-10-31T16:07:37","date_gmt":"2022-11-30T07:58:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44957-2\/"},"modified":"2024-05-04T06:53:36","modified_gmt":"2024-05-03T22:53:36","slug":"44957-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44957-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u6982\u8981<\/h1>\n<p>Rust\u5b66\u7fd2\u3059\u308b\u306b\u3042\u305f\u308a\u6240\u6709\u8005\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u3001\u8272\u3005\u306a\u30d1\u30bf\u30fc\u30f3\u3092\u8a66\u3057\u3066\u307f\u305f\u6240\u3001\u4e2d\u3005\u9762\u767d\u304b\u3063\u305f\u306e\u3067\u3001\u8a18\u4e8b\u306b\u3057\u3066\u307f\u307e\u3057\u305f\u3002\uff08\u304a\u305d\u3089\u304f\u307e\u3060\u307e\u3060\u30d1\u30bf\u30fc\u30f3\u306f\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002\uff09<br \/>\ntwitter\u3067\u3064\u3076\u3084\u3044\u305f\u5185\u5bb9\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u307e\u3068\u3081\u3001\uff0b\u03b1\u306e\u89e3\u8aac\u3092\u5165\u308c\u307e\u3057\u305f\u3002<\/p>\n<blockquote><p>Rust\u306b\u3066\u3001string\u578b\u3060\u3068\u5909\u6570\u306f\u30b9\u30bf\u30c3\u30af\u9818\u57df\u3001\u5024\u304c\u30d2\u30fc\u30d7\u9818\u57df\u306b\u3042\u308a\u3001let v2 = v1\u306e\u3088\u3046\u306b\u3059\u308b\u3068v1\u306e\u6240\u6709\u6a29\u304cv2\u306bmove\u3059\u308b\u305f\u3081v1\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002int\u578b\u3060\u3068copy\u30c8\u30ec\u30a4\u30c8\u5b9f\u88c5\u3057\u3066\u3044\u308b\u305f\u3081 let i2 = i1\u3059\u308b\u3068i1\u3092\u5358\u7d14\u306bi2\u3078copy\u3055\u308ci1\u3001i2\u306e\u6240\u6709\u6a29\u3082\u5024\u3082\u305d\u308c\u305e\u308c\u30b9\u30bf\u30c3\u30af\u9818\u57df\u306b\u3067\u304d\u308b\u2014 frusciante(\u30d5\u30eb\u30b7\u30a2\u30f3\u30c6)\u2638? (@fruscianteee) December 17, 2022<\/p><\/blockquote>\n<p><script><\/script><\/p>\n<h1>\u7d4c\u7def<\/h1>\n<p>Rust\u306e\u578b\u5468\u308a\u306e\u5b66\u7fd2\u3057\u3066\u3044\u304f\u969b\u306b\u3001\u6240\u6709\u8005\u5468\u308a\u306e\u6319\u52d5\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u306e\u3067\u3001\u6240\u6709\u8005\u306e\u52d5\u4f5c\u78ba\u8a8d\u3092\u59cb\u3081\u305f\u3002\u305d\u306e\u6d41\u308c\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<h1>\u8a73\u7d30<\/h1>\n<h2>Rust\u306e\u5909\u6570\u3068\u30e1\u30e2\u30ea\u306e\u95a2\u4fc2<\/h2>\n<p>Rust\u3092\u52c9\u5f37\u3057\u3066\u3044\u304f\u4e0a\u3067\u3001\u30e1\u30e2\u30ea\u5468\u308a\u306e\u7406\u89e3\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\n\u4e3b\u306b4\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Rust\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u81ea\u4f53\u3092\u683c\u7d0d\u3059\u308b\u30e1\u30e2\u30ea\u9818\u57df<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>const\u3084\u6587\u5b57\u5217\u30ea\u30c6\u30e9\u30eb\u306a\u3069\u306e\u5b9f\u4f53\u3092\u683c\u7d0d\u3059\u308bStatic\uff08\u9759\u7684\u9818\u57df\uff09\u306a\u30e1\u30e2\u30ea\u9818\u57df<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u5909\u6570\u3084\u914d\u5217\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308bStack\uff08\u30b9\u30bf\u30c3\u30af\uff09\u306a\u30e1\u30e2\u30ea\u9818\u57df<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>String\u306a\u3069\u306e\u52d5\u7684\u306a\u30c7\u30fc\u30bf\u3092\u6271\u3046\u305f\u3081\u306eHeap(\u30d2\u30fc\u30d7)\u306a\u30e1\u30e2\u30ea\u9818\u57df<\/ol>\n<p>\u4eca\u56de\u306fStack\u3001Heap\u9818\u57df\u5468\u308a\u3092\u52c9\u5f37\u3057\u307e\u3057\u305f\u3002<br \/>\nRust\u3067\u306f\u3001String\u578b\u306e\u5909\u6570\u305d\u306e\u3082\u306e\u306fStack\u9818\u57df\u306b\u3001\u5b9f\u4f53\u306e\u5024\u306fHeap\u9818\u57df\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\nString\u578b\u306ev1\u304c\u3042\u3063\u305f\u3068\u3057\u3066\u3001let v2 = v1\u306e\u3088\u3046\u306b\u30d0\u30a4\u30f3\u30c9\u3059\u308b\u3068v1\u306e\u6240\u6709\u6a29\u304cv2\u306bmove\u3057\u307e\u3059\u3002<br \/>\nv2\u306bmove\u3055\u308c\u305f\u305f\u3081\u3001\u305d\u306e\u5f8c\u306bv1\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3088\u3046\u3068\u3057\u3066\u3082\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\nint\u578b\u3060\u3068\u3001copy\u30c8\u30ec\u30a4\u30c8\u306a\u308b\u3082\u306e\u304c\u5b9f\u88c5\u3057\u3066\u3044\u308b\u305f\u3081\u3001<br \/>\nint\u578bi1\u304c\u3042\u3063\u305f\u3068\u3057\u3066let i2 = i1\u306e\u3088\u3046\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3082\u3001i1\u306e\u5024\u3092i2\u3078copy\u3057\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<br \/>\ni1\u3001i2\u306e\u6240\u6709\u6a29\u3082\u5b9f\u30c7\u30fc\u30bf\u3082\u305d\u308c\u305e\u308cStack\u9818\u57df\u306b\u683c\u7d0d\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u601d\u3063\u305f\u3053\u3068\u30fb\u30fb\u30fb<\/h3>\n<p>\uff08Rust\u3063\u3066\u3053\u3093\u306a\u306b\u30b9\u30bf\u30c3\u30af\u9818\u57df\u3084\u30d2\u30fc\u30d7\u9818\u57df\u3001\u30dd\u30a4\u30f3\u30bf\u3092\u610f\u8b58\u305b\u306a\u3044\u304b\u3093\u306e\u304b\u3002C++\u3092\u5c11\u3057\u3084\u3063\u305f\u304a\u9670\u3067\u7406\u89e3\u3057\u3084\u3059\u304b\u3063\u305f\u3002\u3067\u306a\u304d\u3083\u3001\u3061\u3093\u3077\u3093\u304b\u3093\u3077\u3093\u3084\u3063\u305f\u308f?\uff09<\/p>\n<h2>String\u578b\u306e\u6240\u6709\u6a29\u3092\u4fdd\u6301\u3057\u305f\u3044\u5834\u5408<\/h2>\n<p>clone\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001deepcopy\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">let<\/span> <span class=\"n\">s1<\/span> <span class=\"o\">=<\/span> <span class=\"nn\">String<\/span><span class=\"p\">::<\/span><span class=\"nf\">from<\/span><span class=\"p\">(<\/span><span class=\"s\">\"hogehoge\"<\/span><span class=\"p\">);<\/span>\r\n<span class=\"k\">let<\/span> <span class=\"n\">s2<\/span> <span class=\"o\">=<\/span> <span class=\"n\">s1<\/span><span class=\"nf\">.clone<\/span><span class=\"p\">();<\/span>\r\n<\/code><\/pre>\n<p>\u3053\u308c\u3067s1\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3082\u30a8\u30e9\u30fc\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<br \/>\n\u5909\u6570\u306f\u30b9\u30bf\u30c3\u30af\u9818\u57df\u3001\u5b9f\u4f53\u306e\u5024\u306f\u30d2\u30fc\u30d7\u9818\u57df\u306fs1,s2\u3068\u305d\u308c\u305e\u308c\u5225\u3067\u683c\u7d0d\u3057\u307e\u3059\u3002<\/p>\n<h2>\u6240\u6709\u6a29\u306e\u52d5\u4f5c\u78ba\u8a8d<\/h2>\n<h3>\u6240\u6709\u6a29\u304c\u306a\u304f\u306a\u308b\u30d1\u30bf\u30fc\u30f3<\/h3>\n<h4>\u5909\u6570\u4ee3\u5165<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/20-0.png\" alt=\"undefined\" \/><\/div>\n<h4>\u95a2\u6570\u306e\u5f15\u6570<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/22-0.png\" alt=\"undefined\" \/><\/div>\n<h4>\u6240\u6709\u6a29\u306e\u6319\u52d5\u306e\u30e1\u30e2\u30ea\u306e\u52d5\u304d\u306b\u3064\u3044\u3066<\/h4>\n<p>\u6240\u6709\u6a29\u304c\u3061\u3083\u3093\u3068move\u3055\u308c\u3066\u3001\u5909\u6570\u306eStack\u30e1\u30e2\u30ea\u9818\u57df\u306e\u30a2\u30c9\u30ec\u30b9\u306e\u307f\u304c\u5909\u308f\u308a\u3001\u5b9f\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u3066\u3044\u308bHeap\u30e1\u30e2\u30ea\u9818\u57df\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u306e\u304c\u5206\u304b\u308b\u4f8b\u3002<br \/>\n\u3042\u30fc\u3001\u3053\u308c\u304c\u6240\u6709\u6a29\u306e\u6319\u52d5\u306a\u306e\u304b\u3063\u3066\u3001\u5b9f\u611f\u3059\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u79c1\u306f\u3053\u3053\u3067\u3001\u306a\u308b\u307b\u3069\u3068\u601d\u3044\u307e\u3057\u305f\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/25-0.png\" alt=\"undefined\" \/><\/div>\n<h3>\u6240\u6709\u6a29\u3092\u53d6\u308a\u623b\u3059\u30d1\u30bf\u30fc\u30f3<\/h3>\n<p>Rust\u306e\u95a2\u6570\u306b\u623b\u308a\u5024\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u6240\u6709\u6a29\u3092\u623b\u3057\u3066\u3044\u308b\u306e\u304c\u5206\u304b\u308b\u4f8b\u3067\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/28-0.png\" alt=\"undefined\" \/><\/div>\n<h4>\u4f59\u8ac7<\/h4>\n<p>Rust\u306e\u4ed5\u69d8\u3067\u3001\u95a2\u6570\u306ereturn\u306e\u66f8\u304d\u65b9\u306b\u3066\u30bb\u30df\u30b3\u30ed\u30f3\u7121\u3057\u304c\u5b9f\u8ceareturn\u306e\u6319\u52d5\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<br \/>\n\u500b\u4eba\u7684\u306b\u5c11\u3057\u30e2\u30e4\u30e2\u30e4\u3059\u308b\u3002\u6163\u308c\u3082\u3042\u308b\u306e\u304c\u3001\u5e38\u306b\u30bb\u30df\u30b3\u30ed\u30f3\u3092\u3064\u3051\u3066\u3044\u3066\u3001\u3053\u306e\u5834\u5408\u306e\u307f\u30bb\u30df\u30b3\u30ed\u30f3\u3092\u5916\u3059\u3068\u3044\u3046\u7d76\u5999\u306a\u30eb\u30fc\u30eb\u304c\u30e0\u30ba\u30e0\u30ba\u3059\u308b\u306e\u3067\u3001\u73fe\u6642\u70b9\u306e\u79c1\u306a\u3089\u660e\u793a\u7684\u306breturn\u3092\u66f8\u304f\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n(\u30ef\u30f3\u30e9\u30a4\u30ca\u30fc\u306e\u3088\u3046\u306b\u4e00\u884c\u306e\u307f\u306e\u95a2\u6570\u306a\u3089\u3042\u308a\u304b\uff1f)<\/p>\n<h3>\u6240\u6709\u6a29\u5468\u308a\u306e\u53c2\u7167\u306b\u3064\u3044\u3066<\/h3>\n<p>\u5909\u6570\u306e\u982d\u306b\u300c&amp;\u300d\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u53c2\u7167\u6e21\u3057\u304c\u3067\u304d\u308b\u3002\u95a2\u6570\u51e6\u7406\u524d\u5f8c\u3067\u3082stack\u3068heap\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u308f\u3063\u3066\u3044\u307e\u305b\u3093\u3002<br \/>\n\u6240\u6709\u8005\u76ee\u7dda\u3067\u306f\u6240\u6709\u6a29\u3092\u6e21\u3055\u305a\u306bStack\u9818\u57df\u306b\u3042\u308b\u5909\u6570\u306e\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3092\u6e21\u3057\u3066\u3044\u308b\u3002\u95a2\u6570\u76ee\u7dda\u3067\u306f\u6240\u6709\u6a29\u3067\u306f\u306a\u304f\u5909\u6570\u306e\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3092\u3082\u3089\u3044\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u4e00\u6642\u7684\u306b\u501f\u7528\u3057\u3066Heap\u9818\u57df\u306e\u5b9f\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/33-0.png\" alt=\"undefined\" \/><\/div>\n<p>\u3053\u306e\u4f8b\u306e55\u884c\u76ee\u306b\u3066\u3001mut\u3067\u3042\u308b\u5909\u6570\u306e\u53c2\u7167\u3092\u6e21\u3059\u969b\u306b\u308f\u3056\u308f\u3056(&amp;mut s9)\u3068mut\u3092\u66f8\u304f\u306e\u306b\u4e00\u77ac\u30e2\u30e4\u3063\u3068\u3057\u307e\u3057\u305f\u3002<br \/>\n\u304c\u3001\u30df\u30e5\u30fc\u30bf\u30d6\u30eb\u306a\u5909\u6570\u3067\u3042\u308b\u3053\u3068\u3001\u305d\u306e\u5909\u6570\u306b\u4f55\u304b\u3057\u3089\u5909\u66f4\u304c\u52a0\u3048\u3089\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3068\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u53ef\u8aad\u6027\u304c\u4e0a\u304c\u308b\u3068\u3044\u3046\u30e1\u30ea\u30c3\u30c8\u3042\u308b\u306a\u3068\u601d\u3044\u3001\u3053\u306e\u4ed5\u69d8\u306b\u7d0d\u5f97\u3057\u307e\u3057\u305f\u3002<\/p>\n<h3>\u4e00\u3064\u306e\u5909\u6570\u306b\u5bfe\u3057\u3066\u8907\u6570\u306e\u53c2\u7167\u3059\u308b\u30d1\u30bf\u30fc\u30f3<\/h3>\n<h4>\u6240\u6709\u6a29\u306e\u304a\u3055\u3089\u3044<\/h4>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/37-0.png\" alt=\"undefined\" \/><\/div>\n<h4>\u8907\u6570\u53c2\u7167\u304c\u6210\u529f<\/h4>\n<p>\u305f\u3060\u306e\u53c2\u7167\u3067\u7279\u306b\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u3082\u306a\u3044\u306e\u3067\u3001\u3053\u306e\u66f8\u304d\u65b9\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d5c0637434c4406cecb98\/40-0.png\" alt=\"undefined\" 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