{"id":734,"date":"2023-08-17T19:21:40","date_gmt":"2023-05-20T22:32:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/oops-%e9%9d%a2%e8%af%95%e9%97%ae%e9%a2%98%e5%8f%8a%e7%ad%94%e6%a1%88\/"},"modified":"2025-08-03T05:30:45","modified_gmt":"2025-08-02T21:30:45","slug":"oops-%e9%9d%a2%e8%af%95%e9%97%ae%e9%a2%98%e5%8f%8a%e7%ad%94%e6%a1%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/oops-%e9%9d%a2%e8%af%95%e9%97%ae%e9%a2%98%e5%8f%8a%e7%ad%94%e6%a1%88\/","title":{"rendered":"2023\u5e74\u6700\u65b0\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u8be6\u89e3"},"content":{"rendered":"

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OOPS\u9762\u8bd5\u95ee\u9898<\/h2>\n

\u4ec0\u4e48\u662f\u591a\u91cd\u7ee7\u627f\uff1f<\/h3>\n

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\u7ee7\u627f\u4e2d\u7684\u94bb\u77f3\u95ee\u9898\u662f\u4ec0\u4e48\uff1f<\/h3>\n

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\u4e3a\u4ec0\u4e48Java\u4e0d\u652f\u6301\u591a\u91cd\u7ee7\u627f\uff1f<\/h3>\n

Java\u88ab\u8bbe\u8ba1\u4e3a\u4e00\u79cd\u7b80\u5355\u7684\u8bed\u8a00\uff0c\u800c\u591a\u91cd\u7ee7\u627f\u4f1a\u5f15\u5165\u50cf\u94bb\u77f3\u95ee\u9898\u8fd9\u6837\u7684\u590d\u6742\u6027\u3002\u4ece\u4e24\u4e2a\u4e0d\u540c\u7c7b\u578b\u7684\u7c7b\u7ee7\u627f\u72b6\u6001\u6216\u884c\u4e3a\u5728\u73b0\u5b9e\u4e2d\u662f\u975e\u5e38\u7f55\u89c1\u7684\u60c5\u51b5\uff0c\u5e76\u4e14\u53ef\u4ee5\u901a\u8fc7\u5bf9\u8c61\u5173\u8054\u8f7b\u677e\u5b9e\u73b0\u3002<\/p>\n

\u9759\u6001\u7ed1\u5b9a\u548c\u52a8\u6001\u7ed1\u5b9a\u7684\u542b\u4e49\u662f\u4ec0\u4e48\uff1f<\/h3>\n

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“IS-A”\u548c”HAS-A”\u5173\u7cfb\u7684\u610f\u4e49\u662f\u4ec0\u4e48\uff1f<\/h3>\n

“IS-A”\u5173\u7cfb\u610f\u5473\u7740\u7ee7\u627f\u3002\u5b50\u7c7b\u5bf9\u8c61\u88ab\u8ba4\u4e3a\u4e0e\u8d85\u7c7b\u6216\u63a5\u53e3\u5177\u6709”IS-A”\u5173\u7cfb\u3002\u5982\u679c\u7c7bA\u6269\u5c55\u4e86\u7c7bB\uff0c\u90a3\u4e48A”IS-A”B\u3002\u8fd9\u79cd\u5173\u7cfb\u662f\u53ef\u4f20\u9012\u7684\uff0c\u5373\u5982\u679c\u7c7bA\u6269\u5c55\u4e86\u7c7bB\uff0c\u7c7bB\u6269\u5c55\u4e86\u7c7bC\uff0c\u90a3\u4e48A”IS-A”C\u3002Java\u4e2d\u7684”instanceof”\u64cd\u4f5c\u7b26\u7528\u4e8e\u786e\u5b9a”IS-A”\u5173\u7cfb\u3002\u5f53\u4e00\u4e2a\u7c7bA\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3aB\u7684\u6210\u5458\u5f15\u7528\u53d8\u91cf\u65f6\uff0cA”HAS-A”B\u3002\u8fd9\u4e5f\u88ab\u79f0\u4e3a\u805a\u5408\u3002<\/p>\n

\u4ec0\u4e48\u662f\u5173\u8054\uff1f<\/h3>\n

\u5173\u8054\u662f\u4e24\u4e2a\u5177\u6709\u591a\u91cd\u6027\u7684\u5bf9\u8c61\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n

\u4ec0\u4e48\u662f\u805a\u5408\uff1f<\/h3>\n

\u805a\u5408\u4e5f\u88ab\u79f0\u4e3a”HAS-A”\u5173\u7cfb\u3002\u5f53\u7c7bCar\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3aWheel\u7684\u6210\u5458\u5f15\u7528\u53d8\u91cf\u65f6\uff0c\u7c7bCar\u548c\u7c7bWheel\u4e4b\u95f4\u7684\u5173\u7cfb\u88ab\u79f0\u4e3a\u805a\u5408\u3002\u805a\u5408\u53ef\u4ee5\u7406\u89e3\u4e3a”\u6574\u4f53\u4e0e\u5176\u90e8\u5206”\u7684\u5173\u7cfb\u3002Car\u662f\u6574\u4f53\uff0cWheel\u662f\u90e8\u5206\u3002Wheel\u53ef\u4ee5\u5728\u6ca1\u6709Car\u7684\u60c5\u51b5\u4e0b\u5b58\u5728\u3002\u805a\u5408\u662f\u4e00\u79cd\u5f31\u5173\u8054\u3002<\/p>\n

\u4ec0\u4e48\u662f\u7ec4\u5408\uff1f<\/h3>\n

\u7ec4\u5408\u662f\u805a\u5408\u7684\u4e00\u79cd\u7279\u6b8a\u5f62\u5f0f\uff0c\u5176\u4e2d\u90e8\u5206\u4e0d\u80fd\u5728\u6ca1\u6709\u6574\u4f53\u7684\u60c5\u51b5\u4e0b\u5b58\u5728\u3002\u7ec4\u5408\u662f\u4e00\u79cd\u5f3a\u5173\u8054\u3002\u7ec4\u5408\u5173\u7cfb\u7684\u8868\u793a\u65b9\u5f0f\u4e0e\u805a\u5408\u7c7b\u4f3c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u83f1\u5f62\u662f\u5b9e\u5fc3\u7684\u3002<\/p>\n

\u4f9d\u8d56\u662f\u4ec0\u4e48\u610f\u601d\uff1f<\/h3>\n

\u5f53\u4e00\u4e2a\u7c7b\u56e0\u4e3a\u67d0\u4e2a\u65f6\u95f4\u70b9\u4f7f\u7528\u4e86\u53e6\u4e00\u4e2a\u7c7b\u800c\u4f9d\u8d56\u4e8e\u8be5\u7c7b\u65f6\uff0c\u8fd9\u79cd\u5173\u7cfb\u88ab\u79f0\u4e3a\u4f9d\u8d56\u3002\u5982\u679c\u4e00\u4e2a\u72ec\u7acb\u7c7b\u662f\u4f9d\u8d56\u7c7b\u7684\u65b9\u6cd5\u7684\u53c2\u6570\u53d8\u91cf\u6216\u5c40\u90e8\u53d8\u91cf\uff0c\u90a3\u4e48\u4e00\u4e2a\u7c7b\u5c31\u4f9d\u8d56\u4e8e\u53e6\u4e00\u4e2a\u7c7b\u3002\u4f9d\u8d56\u5173\u7cfb\u88ab\u7ed8\u5236\u4e3a\u4e00\u6761\u4ece\u4f9d\u8d56\u7c7b\u5230\u72ec\u7acb\u7c7b\u7684\u865a\u7ebf\uff0c\u7bad\u5934\u6307\u5411\u72ec\u7acb\u7c7b\u3002<\/p>\n

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\u5173\u8054\u548c\u4f9d\u8d56\u4e4b\u95f4\u7684\u4e3b\u8981\u533a\u522b\u662f\uff0c\u5728\u5173\u8054\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u7c7b\u6709\u53e6\u4e00\u4e2a\u7c7b\u7c7b\u578b\u7684\u5c5e\u6027\u6216\u6210\u5458\u53d8\u91cf\uff0c\u800c\u5728\u4f9d\u8d56\u7684\u60c5\u51b5\u4e0b\uff0c\u4e00\u4e2a\u65b9\u6cd5\u63a5\u53d7\u53e6\u4e00\u4e2a\u7c7b\u7c7b\u578b\u7684\u53c2\u6570\uff0c\u6216\u8005\u4e00\u4e2a\u65b9\u6cd5\u6709\u53e6\u4e00\u4e2a\u7c7b\u7c7b\u578b\u7684\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n

\u4ec0\u4e48\u662f\u7c7b\uff1f<\/h3>\n

\u7c7b\u662f\u5bf9\u8c61\u7684\u89c4\u8303\u6216\u6a21\u677f\u3002<\/p>\n

\u4ec0\u4e48\u662f\u5bf9\u8c61\uff1f<\/h3>\n

\u5bf9\u8c61\u662f\u7c7b\u7684\u5b9e\u4f8b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6b22\u8fce\u6765\u5230OOPS\uff08\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7cfb\u7edf\uff09\u9762\u8bd5\u95ee\u9898\u548c\u7b54\u6848\u3002\u6709\u8bb8\u591a\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u8bed\u8a00\uff0c\u4f8b\u5982Java\u3001C++\u548cPython […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2012,2013,745,722,746],"class_list":["post-734","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-oop","tag-2013","tag-745","tag-722","tag-746"],"yoast_head":"\n2023\u5e74\u6700\u65b0\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u8be6\u89e3 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u6574\u7406\u4e862023\u5e74\u6700\u65b0\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u5e38\u89c1\u9762\u8bd5\u95ee\u9898\u53ca\u8be6\u7ec6\u7b54\u6848\uff0c\u6db5\u76d6\u7c7b\u3001\u5bf9\u8c61\u3001\u7ee7\u627f\u3001\u591a\u6001\u7b49\u6838\u5fc3\u6982\u5ff5\u3002\u5e2e\u52a9\u7a0b\u5e8f\u5458\u8f7b\u677e\u5e94\u5bf9\u6280\u672f\u9762\u8bd5\uff0c\u63d0\u9ad8\u901a\u8fc7\u7387\u3002\" \/>\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\/oops-\u9762\u8bd5\u95ee\u9898\u53ca\u7b54\u6848\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"2023\u5e74\u6700\u65b0\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u9762\u8bd5\u9898\u53ca\u7b54\u6848\u8be6\u89e3\" \/>\n<meta property=\"og:description\" content=\"\u6574\u7406\u4e862023\u5e74\u6700\u65b0\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b(OOP)\u5e38\u89c1\u9762\u8bd5\u95ee\u9898\u53ca\u8be6\u7ec6\u7b54\u6848\uff0c\u6db5\u76d6\u7c7b\u3001\u5bf9\u8c61\u3001\u7ee7\u627f\u3001\u591a\u6001\u7b49\u6838\u5fc3\u6982\u5ff5\u3002\u5e2e\u52a9\u7a0b\u5e8f\u5458\u8f7b\u677e\u5e94\u5bf9\u6280\u672f\u9762\u8bd5\uff0c\u63d0\u9ad8\u901a\u8fc7\u7387\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/oops-\u9762\u8bd5\u95ee\u9898\u53ca\u7b54\u6848\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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