{"id":44862,"date":"2023-01-06T07:31:50","date_gmt":"2024-01-05T16:25:33","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44862-2\/"},"modified":"2024-04-29T08:42:54","modified_gmt":"2024-04-29T00:42:54","slug":"44862-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44862-2\/","title":{"rendered":""},"content":{"rendered":"

\u3084\u308a\u305f\u304b\u3063\u305f\u3053\u3068<\/h2>\n

interface\u306epointer\u306e\u914d\u5217\u3092\u4f5c\u308a\u305f\u304b\u3063\u305f\u3002<\/p>\n

\u3084\u3063\u305f\u3053\u3068<\/h2>\n
    \n
  1. \n
      interface\u306e\u30dd\u30a4\u30f3\u30bf\u914d\u5217\u3092\u4f5c\u308b\u3002<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \n
      1. \n
          interface\u3092\u5b9f\u88c5\u3057\u305f\u69cb\u9020\u4f53\u3092\u4f5c\u308b\u3002<\/ol>\n<\/li>\n<\/ol>\n

           <\/p>\n

            \u305d\u306e\u69cb\u9020\u4f53\u306e\u30dd\u30a4\u30f3\u30bf\u3092interface\u306e\u30dd\u30a4\u30f3\u30bf\u914d\u5217\u306b\u5165\u308c\u308b\u3002<\/ol>\n

            \u4f5c\u6210\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u306f\u4e0b\u8a18\u306e\u901a\u308a\u3002<\/p>\n

            package<\/span> main<\/span>\r\n\r\nimport<\/span> \"fmt\"<\/span>\r\n\r\ntype<\/span> Vehicle<\/span> interface<\/span> {<\/span>\r\n    Name<\/span>()<\/span> string<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> Car<\/span> struct<\/span> {<\/span>\r\n    name<\/span> string<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> Train<\/span> struct<\/span> {<\/span>\r\n    name<\/span> string<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> (<\/span>c<\/span> *<\/span>Car<\/span>)<\/span> Name<\/span>()<\/span> string<\/span> {<\/span>\r\n    return<\/span> c<\/span>.<\/span>name<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> (<\/span>t<\/span> *<\/span>Train<\/span>)<\/span> Name<\/span>()<\/span> string<\/span> {<\/span>\r\n    return<\/span> t<\/span>.<\/span>name<\/span>\r\n}<\/span>\r\n\r\nfunc<\/span> main<\/span>()<\/span> {<\/span>\r\n    vs<\/span> :=<\/span> make<\/span>([]<\/span>*<\/span>Vehicle<\/span>,<\/span> 2<\/span>)<\/span>\r\n    var<\/span> car<\/span> Car<\/span>\r\n    var<\/span> train<\/span> Train<\/span>\r\n    car<\/span>.<\/span>name<\/span> =<\/span> \"car\"<\/span>\r\n    train<\/span>.<\/span>name<\/span> =<\/span> \"train\"<\/span>\r\n    vs<\/span>[<\/span>0<\/span>]<\/span> =<\/span> &<\/span>car<\/span>\r\n    vs<\/span>[<\/span>1<\/span>]<\/span> =<\/span> &<\/span>train<\/span>\r\n    for<\/span> i<\/span> :=<\/span> range<\/span> vs<\/span> {<\/span>\r\n        fmt<\/span>.<\/span>Println<\/span>(<\/span>\"vs[i] is \"<\/span> +<\/span> vs<\/span>[<\/span>i<\/span>]<\/span>.<\/span>Name<\/span>())<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u4e0a\u306e\u30b3\u30fc\u30c9\u3092\u4f5c\u6210\u3057\u3066\u5b9f\u884c\u3057\u3066\u307f\u308b\u3068\u3001<\/p>\n
            cannot use &car (type *Car) as type *Vehicle in assignment:\r\n    *Vehicle is pointer to interface, not interfacego\r\n<\/span><\/code><\/pre>\n
            \u3068\u51fa\u308b\u3002 \u8abf\u3079\u308b\u3068
            \nstackoverflow \u3067<\/p>\n
            An interface can store either a struct directly or a pointer to a struct.\r\n<\/code><\/pre>\n
            \u3068\u66f8\u3044\u3066\u3042\u3063\u305f\u3002<\/p>\n
            \u306a\u306e\u3067\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u3059\u308c\u3070\u89e3\u6c7a\u3002<\/p>\n
            vs := make([]Vehicle, 2)\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
            \u3084\u308a\u305f\u304b\u3063\u305f\u3053\u3068 interface\u306epointer\u306e\u914d\u5217\u3092\u4f5c\u308a\u305f\u304b\u3063\u305f\u3002 \u3084\u3063\u305f\u3053\u3068 interface\u306e\u30dd […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44862","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\/44862-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u3084\u308a\u305f\u304b\u3063\u305f\u3053\u3068 interface\u306epointer\u306e\u914d\u5217\u3092\u4f5c\u308a\u305f\u304b\u3063\u305f\u3002 \u3084\u3063\u305f\u3053\u3068 interface\u306e\u30dd […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/44862-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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