{"id":970,"date":"2025-10-30T17:27:44","date_gmt":"2025-10-30T09:27:44","guid":{"rendered":"https:\/\/www.coni.top\/blog\/?p=970"},"modified":"2025-10-31T16:44:34","modified_gmt":"2025-10-31T08:44:34","slug":"%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.coni.top\/blog\/?p=970","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f"},"content":{"rendered":"\n

\u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e2d\uff0c\u8bbe\u8ba1\u6a21\u5f0f\uff08Design Patterns\uff09<\/strong> \u662f\u4e00\u5957\u88ab\u53cd\u590d\u9a8c\u8bc1\u7684\u201c\u67b6\u6784\u7ecf\u9a8c\u603b\u7ed3\u201d\uff0c\u5b83\u4eec\u5e2e\u52a9\u6211\u4eec\u5199\u51fa\u7ed3\u6784\u66f4\u6e05\u6670\u3001\u53ef\u7ef4\u62a4\u3001\u53ef\u6269\u5c55\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n

\u8bbe\u8ba1\u6a21\u5f0f\u4e3b\u8981\u5206\u4e3a \u4e09\u5927\u7c7b\uff1a<\/strong><\/p>\n\n\n\n

\u521b\u5efa\u578b\u6a21\u5f0f\uff08Creational Patterns\uff09<\/h3>\n\n\n\n

\u5173\u6ce8\u300c\u5bf9\u8c61\u7684\u521b\u5efa\u65b9\u5f0f\u300d<\/p>\n\n\n\n

\u6a21\u5f0f\u540d<\/th>\u4f5c\u7528<\/th>\u4f8b\u5b50\/\u6bd4\u55bb<\/th><\/tr><\/thead>
Singleton\uff08\u5355\u4f8b\uff09<\/strong><\/td>\u786e\u4fdd\u4e00\u4e2a\u7c7b\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b<\/td>\u7a0b\u5e8f\u7684\u201c\u63a7\u5236\u4e2d\u5fc3\u201d\u6216\u201c\u97f3\u9891\u5f15\u64ce\u201d<\/td><\/tr>
Factory Method\uff08\u5de5\u5382\u65b9\u6cd5\uff09<\/strong><\/td>\u5b50\u7c7b\u51b3\u5b9a\u5b9e\u4f8b\u5316\u54ea\u79cd\u5bf9\u8c61<\/td>\u4e0d\u540c\u8f66\u5382\u751f\u4ea7\u4e0d\u540c\u8f66\u578b<\/td><\/tr>
Abstract Factory\uff08\u62bd\u8c61\u5de5\u5382\uff09<\/strong><\/td>\u521b\u5efa\u4e00\u65cf\u76f8\u5173\u5bf9\u8c61<\/td>\u201c\u82f9\u679c\u5de5\u5382\u201d\u751f\u4ea7 iPhone\u3001Mac\u3001iPad<\/td><\/tr>
Builder\uff08\u5efa\u9020\u8005\uff09<\/strong><\/td>\u6309\u6b65\u9aa4\u6784\u5efa\u590d\u6742\u5bf9\u8c61<\/td>\u5efa\u623f\u5b50\uff1a\u6253\u5730\u57fa \u2192 \u642d\u6846\u67b6 \u2192 \u88c5\u4fee<\/td><\/tr>
Prototype\uff08\u539f\u578b\uff09<\/strong><\/td>\u901a\u8fc7\u514b\u9686\u73b0\u6709\u5bf9\u8c61\u521b\u5efa\u65b0\u5bf9\u8c61<\/td>\u6e38\u620f\u91cc\u590d\u5236\u89d2\u8272\u6216\u6b66\u5668\u6a21\u677f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u7ed3\u6784\u578b\u6a21\u5f0f\uff08Structural Patterns\uff09<\/h3>\n\n\n\n

\u5173\u6ce8\u300c\u7c7b\u4e0e\u5bf9\u8c61\u7684\u7ec4\u5408\u5173\u7cfb\u300d<\/p>\n\n\n\n

\u6a21\u5f0f\u540d<\/th>\u4f5c\u7528<\/th>\u4f8b\u5b50\/\u6bd4\u55bb<\/th><\/tr><\/thead>
Adapter\uff08\u9002\u914d\u5668\uff09<\/strong><\/td>\u8ba9\u4e0d\u517c\u5bb9\u7684\u63a5\u53e3\u534f\u540c\u5de5\u4f5c<\/td>\u7535\u6e90\u8f6c\u6362\u5934\uff08110V \u8f6c 220V\uff09<\/td><\/tr>
Bridge\uff08\u6865\u63a5\uff09<\/strong><\/td>\u5206\u79bb\u62bd\u8c61\u4e0e\u5b9e\u73b0\uff0c\u4f7f\u5b83\u4eec\u53ef\u72ec\u7acb\u6269\u5c55<\/td>\u4e0d\u540c\u5e73\u53f0\u5171\u7528\u540c\u4e00\u4e2a\u6e32\u67d3\u903b\u8f91<\/td><\/tr>
Composite\uff08\u7ec4\u5408\uff09<\/strong><\/td>\u8ba9\u5355\u4e2a\u5bf9\u8c61\u548c\u7ec4\u5408\u5bf9\u8c61\u4f7f\u7528\u76f8\u540c\u63a5\u53e3<\/td>\u6587\u4ef6\u5939\u4e0e\u6587\u4ef6\u7cfb\u7edf\u7ed3\u6784<\/td><\/tr>
Decorator\uff08\u88c5\u9970\u5668\uff09<\/strong><\/td>\u52a8\u6001\u5730\u4e3a\u5bf9\u8c61\u6dfb\u52a0\u529f\u80fd<\/td>\u7ed9\u56fe\u7247\u52a0\u6ee4\u955c\u3001\u52a0\u6c34\u5370<\/td><\/tr>
Facade\uff08\u5916\u89c2\uff09<\/strong><\/td>\u63d0\u4f9b\u7edf\u4e00\u63a5\u53e3\u5c01\u88c5\u590d\u6742\u7cfb\u7edf<\/td>\u4e00\u952e\u201c\u542f\u52a8\u6e38\u620f\u201d\u8c03\u7528\u591a\u4e2a\u5b50\u7cfb\u7edf<\/td><\/tr>
Flyweight\uff08\u4eab\u5143\uff09<\/strong><\/td>\u5171\u4eab\u5bf9\u8c61\uff0c\u51cf\u5c11\u5185\u5b58\u5360\u7528<\/td>\u6e38\u620f\u4e2d\u540c\u79cd\u5b50\u5f39\u6216\u6811\u7684\u590d\u7528<\/td><\/tr>
Proxy\uff08\u4ee3\u7406\uff09<\/strong><\/td>\u63a7\u5236\u5bf9\u5bf9\u8c61\u7684\u8bbf\u95ee<\/td>\u7f51\u7edc\u4ee3\u7406\u3001\u6743\u9650\u68c0\u67e5\u3001\u61d2\u52a0\u8f7d<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u884c\u4e3a\u578b\u6a21\u5f0f\uff08Behavioral Patterns\uff09<\/h3>\n\n\n\n

\u5173\u6ce8\u300c\u5bf9\u8c61\u4e4b\u95f4\u7684\u901a\u4fe1\u4e0e\u804c\u8d23\u5206\u914d\u300d<\/p>\n\n\n\n

\u6a21\u5f0f\u540d<\/th>\u4f5c\u7528<\/th>\u4f8b\u5b50\/\u6bd4\u55bb<\/th><\/tr><\/thead>
Observer\uff08\u89c2\u5bdf\u8005\uff09<\/strong><\/td>\u4e00\u53d8\u591a\u901a\u77e5\u673a\u5236<\/td>\u8ba2\u9605-\u53d1\u5e03\u7cfb\u7edf\u3001UI\u4e8b\u4ef6\u76d1\u542c<\/td><\/tr>
Strategy\uff08\u7b56\u7565\uff09<\/strong><\/td>\u52a8\u6001\u5207\u6362\u7b97\u6cd5\u6216\u884c\u4e3a<\/td>AI\u4e0d\u540c\u653b\u51fb\u7b56\u7565<\/td><\/tr>
Command\uff08\u547d\u4ee4\uff09<\/strong><\/td>\u5c06\u8bf7\u6c42\u5c01\u88c5\u6210\u5bf9\u8c61<\/td>\u64a4\u9500\/\u91cd\u505a\u7cfb\u7edf<\/td><\/tr>
State\uff08\u72b6\u6001\uff09<\/strong><\/td>\u5bf9\u8c61\u5728\u4e0d\u540c\u72b6\u6001\u4e0b\u884c\u4e3a\u4e0d\u540c<\/td>\u6e38\u620f\u89d2\u8272\uff1a\u8d70\u3001\u8dd1\u3001\u653b\u51fb\u3001\u6b7b\u4ea1<\/td><\/tr>
Mediator\uff08\u4e2d\u4ecb\u8005\uff09<\/strong><\/td>\u7edf\u4e00\u7ba1\u7406\u591a\u4e2a\u5bf9\u8c61\u95f4\u7684\u901a\u4fe1<\/td>\u804a\u5929\u5ba4\u7684\u6d88\u606f\u8f6c\u53d1\u5668<\/td><\/tr>
Memento\uff08\u5907\u5fd8\u5f55\uff09<\/strong><\/td>\u4fdd\u5b58\u548c\u6062\u590d\u5bf9\u8c61\u72b6\u6001<\/td>\u6e38\u620f\u5b58\u6863\u7cfb\u7edf<\/td><\/tr>
Iterator\uff08\u8fed\u4ee3\u5668\uff09<\/strong><\/td>\u987a\u5e8f\u8bbf\u95ee\u96c6\u5408\uff0c\u4e0d\u66b4\u9732\u5185\u90e8\u7ed3\u6784<\/td>STL \u7684 begin()<\/code> \/ end()<\/code><\/td><\/tr>
Chain of Responsibility\uff08\u8d23\u4efb\u94fe\uff09<\/strong><\/td>\u591a\u4e2a\u5bf9\u8c61\u4f9d\u6b21\u5904\u7406\u8bf7\u6c42<\/td>\u65e5\u5fd7\u7cfb\u7edf\u7684\u4e0d\u540c\u7ea7\u522b\u8fc7\u6ee4<\/td><\/tr>
Template Method\uff08\u6a21\u677f\u65b9\u6cd5\uff09<\/strong><\/td>\u5b9a\u4e49\u7b97\u6cd5\u6846\u67b6\uff0c\u8ba9\u5b50\u7c7b\u5b9e\u73b0\u5177\u4f53\u6b65\u9aa4<\/td>\u6e38\u620f AI \u7684\u901a\u7528\u51b3\u7b56\u6d41\u7a0b<\/td><\/tr>
Visitor\uff08\u8bbf\u95ee\u8005\uff09<\/strong><\/td>\u5bf9\u5bf9\u8c61\u7ed3\u6784\u7684\u7edf\u4e00\u8bbf\u95ee<\/td>\u7f16\u8f91\u5668\u4e2d\u201c\u6279\u91cf\u64cd\u4f5c\u201d\u4e0d\u540c\u5bf9\u8c61<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n\n\n\n

\u4e00\u3001\u5355\u4f8b\u6a21\u5f0f\uff08Singleton Pattern\uff09<\/h3>\n\n\n\n

\u6982\u5ff5<\/h4>\n\n\n\n

\u5355\u4f8b\u6a21\u5f0f\u7684\u76ee\u7684\u662f\uff1a<\/p>\n\n\n\n

\u786e\u4fdd\u4e00\u4e2a\u7c7b\u5728\u6574\u4e2a\u7a0b\u5e8f\u4e2d\u53ea\u6709\u4e00\u4e2a\u5b9e\u4f8b<\/strong>\uff0c\u5e76\u4e14\u80fd\u5728\u4efb\u4f55\u5730\u65b9\u5168\u5c40\u8bbf\u95ee\u5b83\u3002<\/p>\n\n\n\n

\u201c\u53ea\u9020\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5168\u5c40\u90fd\u7528\u8fd9\u4e00\u4e2a\u3002\u201d<\/p>\n\n\n\n

\u7a0b\u5e8f\u4f8b\u5b50\uff1a\u65e5\u5fd7\u7cfb\u7edf<\/h4>\n\n\n\n
#include <iostream>\n#include <string>\nusing namespace std;\n\nclass Logger {\nprivate:\n    static Logger* instance; \/\/ \u9759\u6001\u6307\u9488\u4fdd\u5b58\u552f\u4e00\u5b9e\u4f8b\n    Logger() {} \/\/ \u79c1\u6709\u6784\u9020\u51fd\u6570\uff0c\u5916\u90e8\u4e0d\u80fd new\npublic:\n    static Logger* getInstance() {\n        if (instance == nullptr)\n            instance = new Logger();\n        return instance;\n    }\n\n    void log(string message) {\n        cout << \"[Log]: \" << message << endl;\n    }\n};\n\nLogger* Logger::instance = nullptr;\n<\/code><\/pre>\n\n\n\n
\u4f7f\u7528\u65b9\u5f0f\uff1a<\/h4>\n\n\n\n
int main() {\n    Logger::getInstance()->log(\"Program started.\");\n    Logger::getInstance()->log(\"All systems running.\");\n}<\/code><\/pre>\n\n\n\n
\u8f93\u51fa<\/p>\n\n\n\n
[Log]: Program started. \n[Log]: All systems running.<\/code><\/pre>\n\n\n\n
\u4f60\u4e0d\u9700\u8981 new\uff1b<\/p>\n\n\n\n
    \n
  • \u6c38\u8fdc\u53ea\u4f1a\u5b58\u5728\u4e00\u4e2a Logger<\/code>\uff1b<\/li>\n\n\n\n
  • \u5168\u5c40\u4efb\u4f55\u5730\u65b9\u90fd\u80fd\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n\n\n\n
    \u6838\u5fc3\u7279\u5f81\uff1a<\/h4>\n\n\n\n
    \u7279\u5f81<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
    \u6784\u9020\u51fd\u6570\u662f\u79c1\u6709\u7684<\/td>\u9632\u6b62\u5916\u90e8 new<\/code><\/td><\/tr>
    \u62e5\u6709\u9759\u6001\u6210\u5458\u6307\u9488<\/td>\u5b58\u653e\u552f\u4e00\u5b9e\u4f8b<\/td><\/tr>
    \u62e5\u6709\u9759\u6001\u8bbf\u95ee\u51fd\u6570<\/td>\u7edf\u4e00\u83b7\u53d6\u5b9e\u4f8b\u5165\u53e3<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
    \u7528\u9014\uff1a<\/h4>\n\n\n\n
      \n
    • \u65e5\u5fd7\u7cfb\u7edf\uff08LogManager::Instance()<\/code>\uff09<\/li>\n\n\n\n
    • \u914d\u7f6e\u7ba1\u7406\u5668<\/li>\n\n\n\n
    • \u5168\u5c40\u8d44\u6e90\u7ba1\u7406\uff08\u5982\u58f0\u97f3\u3001\u7a97\u53e3\u3001\u8f93\u5165\u7cfb\u7edf\uff09<\/li>\n\n\n\n
    • \u6e38\u620f\u4e2d\u7684\u573a\u666f\u63a7\u5236\u5668\u3001\u7cfb\u7edf\u7ba1\u7406\u5668<\/li>\n<\/ul>\n\n\n\n
      \n
      \u5355\u4f8b = \u5168\u5c40\u552f\u4e00 + \u5ef6\u8fdf\u521b\u5efa + \u5168\u5c40\u8bbf\u95ee\u3002<\/p>\n<\/blockquote>\n\n\n\n
      \n\n\n\n
       \u4e8c\u3001\u5de5\u5382\u6a21\u5f0f\uff08Factory Pattern\uff09<\/h3>\n\n\n\n
      \u6982\u5ff5<\/h4>\n\n\n\n
      \u5de5\u5382\u6a21\u5f0f\u7684\u76ee\u7684\uff1a<\/p>\n\n\n\n
      \u8ba9\u5b50\u7c7b\u51b3\u5b9a\u521b\u5efa\u54ea\u79cd\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u5728\u4ee3\u7801\u91cc\u76f4\u63a5 new\u3002<\/strong><\/p>\n\n\n\n
      \u60f3\u8981\u4e00\u4e2a\u201c\u4ea7\u54c1\u201d\uff0c\u4f60\u4e0d\u7528\u4eb2\u81ea\u53bb\u9020\uff1b
      \u4f60\u544a\u8bc9\u201c\u5de5\u5382\u201d\u4f60\u8981\u4ec0\u4e48\u578b\u53f7\uff0c\u5b83\u5e2e\u4f60\u9020\u597d\u7ed9\u4f60\u3002<\/p>\n\n\n\n
      \u4e3e\u4f8b\u8bf4\u660e<\/h4>\n\n\n\n
      \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u57fa\u7c7b\uff1a<\/p>\n\n\n\n
      class Shape {\npublic:\n    virtual void draw() = 0;\n};\n<\/code><\/code><\/pre>\n\n\n\n
      \u6d3e\u751f\u7c7b\uff1a<\/p>\n\n\n\n
      class Circle : public Shape {\npublic:\n    void draw() override { cout << \"Draw Circle\\n\"; }\n};\n\nclass Square : public Shape {\npublic:\n    void draw() override { cout << \"Draw Square\\n\"; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
      \u5de5\u5382\u7c7b\uff1a<\/p>\n\n\n\n
      class ShapeFactory {\npublic:\n    static Shape* createShape(const std::string& type) {\n        if (type == \"circle\")\n            return new Circle();\n        else if (type == \"square\")\n            return new Square();\n        else\n            return nullptr;\n    }\n};\n<\/code><\/code><\/pre>\n\n\n\n
      \u4f7f\u7528\uff1a<\/p>\n\n\n\n
      Shape* s1 = ShapeFactory::createShape(\"circle\");\nShape* s2 = ShapeFactory::createShape(\"square\");\n<\/code><\/code><\/pre>\n\n\n\n
       \u4f18\u70b9\uff1a<\/h4>\n\n\n\n
      \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
      \u89e3\u8026<\/td>\u4ee3\u7801\u4e0d\u9700\u8981\u77e5\u9053\u5bf9\u8c61\u600e\u4e48\u521b\u5efa<\/td><\/tr>
      \u53ef\u6269\u5c55<\/td>\u65b0\u589e\u7c7b\u53ea\u9700\u4fee\u6539\u5de5\u5382<\/td><\/tr>
      \u6613\u7ef4\u62a4<\/td>\u7ba1\u7406\u521b\u5efa\u903b\u8f91\u96c6\u4e2d\u5728\u4e00\u5904<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      \n
      \u5de5\u5382\u65b9\u6cd5 = \u5b50\u7c7b\u51b3\u5b9a\u9020\u4ec0\u4e48\u5bf9\u8c61\u3002<\/p>\n<\/blockquote>\n\n\n\n
      \n\n\n\n
      \u4e09\u3001\u62bd\u8c61\u5de5\u5382\uff08Abstract Factory Pattern\uff09<\/h3>\n\n\n\n
      \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
      \u521b\u5efa\u4e00\u6574\u7ec4\u201c\u76f8\u5173\u5bf9\u8c61\u201d\uff0c\u800c\u4e0d\u662f\u5355\u4e2a\u5bf9\u8c61\u3002<\/strong><\/p>\n\n\n\n
      \u62bd\u8c61\u5de5\u5382 = \u201c\u4e00\u4e2a\u5de5\u5382\uff0c\u80fd\u521b\u5efa\u4e00\u6574\u7ec4\u76f8\u5173\u7684\u4ea7\u54c1\u201d\u3002<\/p>\n\n\n\n
      \u5047\u8bbe\u6211\u4eec\u8981\u505a\u4e00\u4e2a\u201c\u8de8\u5e73\u53f0 UI \u7cfb\u7edf\u201d\uff1a<\/p>\n\n\n\n
        \n
      • Windows \u7cfb\u7edf\u7528 WinButton<\/strong>\u3001WinTextbox<\/strong><\/li>\n\n\n\n
      • macOS \u7cfb\u7edf\u7528 MacButton<\/strong>\u3001MacTextbox<\/strong><\/li>\n<\/ul>\n\n\n\n
        \u8fd9\u65f6\u5c31\u6709\u4e00\u4e2a\u95ee\u9898\uff1a<\/p>\n\n\n\n
        \u600e\u4e48\u5728\u7a0b\u5e8f\u91cc\u81ea\u52a8\u521b\u5efa\u4e00\u6574\u5957\u201c\u540c\u98ce\u683c\u201d\u7684\u7ec4\u4ef6\uff0c\u800c\u4e0d\u7528\u5230\u5904 if \u5224\u65ad\u5e73\u53f0\uff1f<\/p>\n\n\n\n
        \u7b54\u6848\uff1a\u7528\u62bd\u8c61\u5de5\u5382<\/strong>\u3002<\/p>\n\n\n\n
        \u4e3e\u4e2a\u4f8b\u5b50\uff08\u56fe\u5f62\u754c\u9762\u5de5\u5382\uff09<\/h4>\n\n\n\n
        \u6211\u4eec\u5b9a\u4e49\u4e00\u4e2a\u62bd\u8c61\u5de5\u5382\u63a5\u53e3\uff1a<\/p>\n\n\n\n
        \/\/ \u62bd\u8c61\u4ea7\u54c1\nclass Button { public: virtual void click() = 0; };\nclass Textbox { public: virtual void draw() = 0; };\n\n\/\/ \u5177\u4f53\u4ea7\u54c1 - Windows \u7248\u672c\nclass WinButton : public Button {\npublic: void click() override { cout << \"Windows Button Clicked\\n\"; }\n};\nclass WinTextbox : public Textbox {\npublic: void draw() override { cout << \"Windows Textbox Drawn\\n\"; }\n};\n\n\/\/ \u5177\u4f53\u4ea7\u54c1 - Mac \u7248\u672c\nclass MacButton : public Button {\npublic: void click() override { cout << \"Mac Button Clicked\\n\"; }\n};\nclass MacTextbox : public Textbox {\npublic: void draw() override { cout << \"Mac Textbox Drawn\\n\"; }\n};\n\n\/\/ \u62bd\u8c61\u5de5\u5382\nclass GUIFactory {\npublic:\n    virtual Button* createButton() = 0;\n    virtual Textbox* createTextbox() = 0;\n};\n\n\/\/ \u5177\u4f53\u5de5\u5382 - Windows\nclass WinFactory : public GUIFactory {\npublic:\n    Button* createButton() override { return new WinButton(); }\n    Textbox* createTextbox() override { return new WinTextbox(); }\n};\n\n\/\/ \u5177\u4f53\u5de5\u5382 - Mac\nclass MacFactory : public GUIFactory {\npublic:\n    Button* createButton() override { return new MacButton(); }\n    Textbox* createTextbox() override { return new MacTextbox(); }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
        GUIFactory* factory = new MacFactory();  \/\/ \u6216 new WinFactory()\nButton* btn = factory->createButton();\nTextbox* box = factory->createTextbox();\n\nbtn->click();\nbox->draw();\n<\/code><\/code><\/pre>\n\n\n\n
         \u4f18\u70b9\u603b\u7ed3<\/h4>\n\n\n\n
        \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
        \u4ea7\u54c1\u65cf\u4e00\u81f4<\/td>\u4fdd\u8bc1\u521b\u5efa\u51fa\u7684\u7ec4\u4ef6\u98ce\u683c\u7edf\u4e00\uff08\u4e0d\u4f1a\u6df7\u7528 Mac \u6309\u94ae\u548c Win \u6587\u672c\u6846\uff09<\/td><\/tr>
        \u6613\u4e8e\u6269\u5c55<\/td>\u65b0\u589e LinuxFactory \u53ea\u9700\u5b9e\u73b0\u4e00\u7ec4\u65b0\u7c7b<\/td><\/tr>
        \u9ad8\u5c42\u4ee3\u7801\u4e0e\u5177\u4f53\u5e73\u53f0\u89e3\u8026<\/td>\u4e0a\u5c42\u903b\u8f91\u65e0\u9700\u5173\u5fc3\u521b\u5efa\u7ec6\u8282<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u56fe\u793a\u601d\u7ef4<\/h4>\n\n\n\n
                 [\u62bd\u8c61\u5de5\u5382 GUIFactory]\n           \/             \\\n [WinFactory]           [MacFactory]\n    |   |                   |   |\n [WinButton][WinTextbox] [MacButton][MacTextbox]\n<\/code><\/code><\/pre>\n\n\n\n
        \n
        \u62bd\u8c61\u5de5\u5382\u80fd\u4e00\u6b21\u6027\u751f\u4ea7\u4e00\u6574\u5957\u76f8\u5173\u5bf9\u8c61\u3002<\/p>\n<\/blockquote>\n\n\n\n
        \n\n\n\n
        \u6a21\u5f0f<\/th>\u76ee\u7684<\/th>\u8fd4\u56de\u5bf9\u8c61\u6570\u91cf<\/th>\u8c01\u51b3\u5b9a\u521b\u5efa\u4ec0\u4e48<\/th>\u5e38\u89c1\u7528\u9014<\/th><\/tr><\/thead>
        \u5355\u4f8b<\/td>\u5168\u5c40\u552f\u4e00\u5b9e\u4f8b<\/td>1<\/td>\u7c7b\u672c\u8eab<\/td>\u5168\u5c40\u7ba1\u7406\u5668\u3001\u65e5\u5fd7\u3001\u914d\u7f6e<\/td><\/tr>
        \u5de5\u5382<\/td>\u5ef6\u8fdf\u5bf9\u8c61\u521b\u5efa<\/td>1<\/td>\u5b50\u7c7b<\/td>UI \u63a7\u4ef6\u3001\u6b66\u5668\u5de5\u5382<\/td><\/tr>
        \u62bd\u8c61\u5de5\u5382<\/td>\u521b\u5efa\u4ea7\u54c1\u65cf<\/td>\u591a\u4e2a<\/td>\u5b50\u7c7b<\/td>\u8de8\u5e73\u53f0\u754c\u9762\u3001\u4e3b\u9898\u6837\u5f0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \n\n\n\n
         \u56db\u3001\u5efa\u9020\u8005\u6a21\u5f0f\uff08Builder Pattern\uff09<\/h3>\n\n\n\n
        \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
        \u4e00\u6b65\u4e00\u6b65\u5730\u6784\u9020\u590d\u6742\u5bf9\u8c61<\/strong>\uff0c\u800c\u4e0d\u662f\u4e00\u6b21\u6027 new \u51fa\u6765\u3002<\/p>\n\n\n\n
        \u4e3e\u4e2a\u4f8b\u5b50\uff1a<\/p>\n\n\n\n
        \u5047\u8bbe\u6211\u4eec\u8981\u5efa\u9020\u4e00\u680b\u623f\u5b50\uff08House\uff09\uff0c
        \u6709\u5730\u57fa\u3001\u5899\u3001\u5c4b\u9876\u3001\u95e8\u7a97\u3001\u7535\u7ebf\u3001\u6c34\u7ba1\u2026\u2026
        \u4e0d\u540c\u98ce\u683c\u7684\u623f\u5b50\u5efa\u9020\u6b65\u9aa4\u76f8\u4f3c\uff0c\u4f46\u7ec6\u8282\u4e0d\u540c\u3002<\/p>\n\n\n\n
        \u89e3\u51b3\u65b9\u6848\uff1a\u7528\u5efa\u9020\u8005\u6a21\u5f0f<\/strong>\u6765\u5206\u79bb\u201c\u6784\u5efa\u6b65\u9aa4\u201d\u4e0e\u201c\u5177\u4f53\u7ec6\u8282\u201d\u3002<\/p>\n\n\n\n
        \u4e3e\u4e2a\u4f8b\u5b50\uff08\u5efa\u9020\u623f\u5b50\uff09<\/h4>\n\n\n\n
        \/\/ \u4ea7\u54c1\nclass House {\npublic:\n    void setFoundation(const string& f) { foundation = f; }\n    void setStructure(const string& s) { structure = s; }\n    void setRoof(const string& r) { roof = r; }\n\n    void show() {\n        cout << \"House with \" << foundation << \", \" << structure << \", \" << roof << endl;\n    }\nprivate:\n    string foundation, structure, roof;\n};\n\n\/\/ \u62bd\u8c61\u5efa\u9020\u8005\nclass HouseBuilder {\npublic:\n    virtual void buildFoundation() = 0;\n    virtual void buildStructure() = 0;\n    virtual void buildRoof() = 0;\n    virtual House* getHouse() = 0;\n};\n\n\/\/ \u5177\u4f53\u5efa\u9020\u8005 - \u6728\u5c4b\nclass WoodenHouseBuilder : public HouseBuilder {\nprivate:\n    House* house;\npublic:\n    WoodenHouseBuilder() { house = new House(); }\n    void buildFoundation() override { house->setFoundation(\"Wood Foundation\"); }\n    void buildStructure() override { house->setStructure(\"Wood Structure\"); }\n    void buildRoof() override { house->setRoof(\"Wood Roof\"); }\n    House* getHouse() override { return house; }\n};\n\n\/\/ \u6307\u6325\u8005\uff08Director\uff09\nclass Engineer {\nprivate:\n    HouseBuilder* builder;\npublic:\n    Engineer(HouseBuilder* b) : builder(b) {}\n    void constructHouse() {\n        builder->buildFoundation();\n        builder->buildStructure();\n        builder->buildRoof();\n    }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
        WoodenHouseBuilder* woodBuilder = new WoodenHouseBuilder();\nEngineer engineer(woodBuilder);\n\nengineer.constructHouse();\nHouse* house = woodBuilder->getHouse();\nhouse->show();\n<\/code><\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/p>\n\n\n\n
        House with Wood Foundation, Wood Structure, Wood Roof\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f18\u70b9\u603b\u7ed3<\/h4>\n\n\n\n
        \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
        \u5206\u79bb\u6784\u5efa\u8fc7\u7a0b\u4e0e\u8868\u793a<\/td>\u7ed3\u6784\u590d\u6742\u7684\u5bf9\u8c61\u4e5f\u80fd\u7075\u6d3b\u6784\u5efa<\/td><\/tr>
        \u53ef\u590d\u7528\u6784\u5efa\u6b65\u9aa4<\/td>\u4e0d\u540c\u623f\u5b50\u5171\u7528\u5efa\u9020\u6d41\u7a0b\uff0c\u7ec6\u8282\u53ef\u53d8<\/td><\/tr>
        \u6307\u6325\u8005\u53ef\u590d\u7528<\/td>\u540c\u6837\u7684\u6d41\u7a0b\u53ef\u751f\u6210\u4e0d\u540c\u7c7b\u578b\u4ea7\u54c1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u56fe\u793a\u601d\u7ef4<\/h4>\n\n\n\n
        [Engineer Director]\n       \u2193\n [HouseBuilder \u62bd\u8c61\u5efa\u9020\u8005]\n       \u2193\n[WoodenHouseBuilder \/ StoneHouseBuilder]\n       \u2193\n        \u2192 \u7ec4\u88c5\u51fa [House]\n<\/code><\/code><\/pre>\n\n\n\n
        \n
        \u5efa\u9020\u8005\u6a21\u5f0f\u66f4\u50cf\u201c\u76d6\u623f\u5b50\u7684\u5de5\u5730\u6d41\u7a0b\u8868\u201d\u2014\u2014
        \u6d41\u7a0b\u662f\u4e00\u6837\u7684\uff0c\u6750\u6599\u548c\u7ec6\u8282\u7531\u5177\u4f53\u5efa\u9020\u8005\u51b3\u5b9a\u3002<\/p>\n<\/blockquote>\n\n\n\n
        \n\n\n\n
        \u4e94\u3001\u9002\u914d\u5668\u6a21\u5f0f\uff08Adapter Pattern\uff09<\/h3>\n\n\n\n
        \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
        \u8ba9\u4e24\u4e2a\u63a5\u53e3\u4e0d\u517c\u5bb9<\/strong>\u7684\u7c7b\u53ef\u4ee5\u4e00\u8d77\u5de5\u4f5c\u3002<\/p>\n\n\n\n
        \u4f60\u53ef\u4ee5\u628a\u5b83\u7406\u89e3\u6210\u201c\u63a5\u53e3\u8f6c\u6362\u5668\u201d\u6216\u201c\u63d2\u5934\u8f6c\u6362\u5934\u201d\u3002
        \u5f53\u4f60\u6709\u4e00\u4e2a\u65e7\u7cfb\u7edf\u6216\u7b2c\u4e09\u65b9\u5e93\uff0c\u63a5\u53e3\u548c\u4f60\u9700\u8981\u7684\u4e0d\u540c\uff0c\u5c31\u7528\u9002\u914d\u5668<\/strong>\u628a\u5b83\u201c\u8f6c\u63a5\u201d\u8d77\u6765\u3002<\/p>\n\n\n\n
        \u4e3e\u4e2a\u4f8b\u5b50\uff08\u73b0\u5b9e\u6bd4\u55bb\uff09<\/h4>\n\n\n\n
        \u4f60\u6709\u4e00\u4e2a\u300c\u7b14\u8bb0\u672c\u7535\u6e90\u63d2\u5934\u300d\u662f\u4e09\u5b54\u7684\uff0c
        \u4f46\u5bb6\u91cc\u63d2\u5ea7\u662f\u4e24\u5b54\u7684\u2014\u2014\u600e\u4e48\u529e\uff1f
        \u63d2\u4e0a\u4e00\u4e2a\u8f6c\u6362\u5934\uff08Adapter\uff09<\/strong>\uff01<\/p>\n\n\n\n
        \u7a0b\u5e8f\u91cc\u4e5f\u662f\u540c\u6837\u7684\u3002<\/p>\n\n\n\n
         \u7a0b\u5e8f\u4f8b\u5b50\uff1a\u97f3\u9891\u64ad\u653e\u5668<\/h4>\n\n\n\n
        \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a MediaPlayer<\/code> \u63a5\u53e3\uff0c\u53ea\u80fd\u64ad\u653e MP3\uff1a<\/p>\n\n\n\n
        class MediaPlayer {\npublic:\n    virtual void play(string audioType, string fileName) = 0;\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u800c\u6709\u4e00\u4e2a\u73b0\u6210\u7684\u7b2c\u4e09\u65b9\u7c7b AdvancedPlayer<\/code> \u80fd\u64ad\u653e MP4 \u548c VLC\uff1a<\/p>\n\n\n\n
        class AdvancedPlayer {\npublic:\n    void playMP4(string file) { cout << \"Playing MP4: \" << file << endl; }\n    void playVLC(string file) { cout << \"Playing VLC: \" << file << endl; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f46\u662f\uff01\u6211\u4eec\u73b0\u6709\u7684\u7cfb\u7edf\u53ea\u8ba4\u8bc6 MediaPlayer<\/code> \u63a5\u53e3\u3002<\/p>\n\n\n\n
         \u89e3\u51b3\uff1a\u5199\u4e00\u4e2a\u9002\u914d\u5668<\/h4>\n\n\n\n
        class MediaAdapter : public MediaPlayer {\nprivate:\n    AdvancedPlayer* advancedPlayer;\npublic:\n    MediaAdapter() { advancedPlayer = new AdvancedPlayer(); }\n\n    void play(string audioType, string fileName) override {\n        if (audioType == \"mp4\")\n            advancedPlayer->playMP4(fileName);\n        else if (audioType == \"vlc\")\n            advancedPlayer->playVLC(fileName);\n        else\n            cout << \"Unsupported format\" << endl;\n    }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u5ba2\u6237\u7aef\u4f7f\u7528<\/h4>\n\n\n\n
        int main() {\n    MediaPlayer* player = new MediaAdapter();\n    player->play(\"mp4\", \"video.mp4\");\n    player->play(\"vlc\", \"movie.vlc\");\n    player->play(\"mp3\", \"song.mp3\");\n}\n<\/code><\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/p>\n\n\n\n
        Playing MP4: video.mp4\nPlaying VLC: movie.vlc\nUnsupported format\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f18\u70b9\u603b\u7ed3<\/h4>\n\n\n\n
        \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
         \u4e0d\u4fee\u6539\u539f\u6709\u4ee3\u7801<\/td>\u53ef\u4ee5\u590d\u7528\u65e7\u63a5\u53e3\u6216\u7b2c\u4e09\u65b9\u5e93<\/td><\/tr>
        \u5b9e\u73b0\u63a5\u53e3\u517c\u5bb9<\/td>\u4e0d\u540c\u7cfb\u7edf\u53ef\u4ee5\u65e0\u7f1d\u534f\u4f5c<\/td><\/tr>
        \u5f00\u95ed\u539f\u5219<\/td>\u65b0\u7684\u683c\u5f0f\u53ef\u901a\u8fc7\u65b0\u9002\u914d\u5668\u6269\u5c55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
        [Client]\n   \u2193 (\u4f7f\u7528\u7edf\u4e00\u63a5\u53e3)\n[MediaPlayer]\n   \u2193\n[MediaAdapter]\n   \u2193\n[AdvancedPlayer]\n<\/code><\/code><\/pre>\n\n\n\n
        \n
        \u9002\u914d\u5668<\/strong> = \u201c\u8ba9\u539f\u672c\u4e0d\u517c\u5bb9\u7684\u7c7b\u80fd\u534f\u540c\u5de5\u4f5c\u201d\u3002<\/p>\n<\/blockquote>\n\n\n\n
        \n\n\n\n
        \u516d\u3001\u88c5\u9970\u5668\u6a21\u5f0f\uff08Decorator Pattern\uff09<\/h3>\n\n\n\n
         \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
        \u52a8\u6001\u5730\u7ed9\u5bf9\u8c61\u589e\u52a0\u529f\u80fd<\/strong>\uff0c\u800c\u4e0d\u4fee\u6539\u5b83\u7684\u539f\u59cb\u7c7b\u3002<\/p>\n\n\n\n
        \u6362\u53e5\u8bdd\u8bf4\uff1a<\/p>\n\n\n\n
        \u201c\u4e0d\u6539\u6e90\u7801\uff0c\u5374\u80fd\u52a0\u65b0\u80fd\u529b\u201d\u3002<\/p>\n\n\n\n
        \u73b0\u5b9e\u6bd4\u55bb<\/h4>\n\n\n\n
        \u4f60\u6709\u4e00\u676f\u5496\u5561 \u2615\uff0c
        \u60f3\u52a0\u70b9\u725b\u5976\u3001\u7cd6\u3001\u5de7\u514b\u529b\u2014\u2014
        \u4f60\u4e0d\u91cd\u65b0\u716e\u4e00\u676f\uff0c\u800c\u662f\u5f80\u539f\u6765\u7684\u5496\u5561\u91cc\u201c\u88c5\u9970\u201d\u65b0\u914d\u6599\u3002<\/p>\n\n\n\n
        \u8fd9\u5c31\u662f\u88c5\u9970\u5668<\/strong>\u3002<\/p>\n\n\n\n
        \u7a0b\u5e8f\u4f8b\u5b50\uff1a\u5496\u5561\u7cfb<\/h4>\n\n\n\n
        class Coffee {\npublic:\n    virtual string getDescription() = 0;\n    virtual double cost() = 0;\n    virtual ~Coffee() {}\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u57fa\u7840\u5496\u5561\u7c7b<\/h4>\n\n\n\n
        class SimpleCoffee : public Coffee {\npublic:\n    string getDescription() override { return \"Simple Coffee\"; }\n    double cost() override { return 2.0; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u88c5\u9970\u5668\u57fa\u7c7b<\/h4>\n\n\n\n
        class CoffeeDecorator : public Coffee {\nprotected:\n    Coffee* coffee;  \/\/ \u88ab\u88c5\u9970\u7684\u5bf9\u8c61\npublic:\n    CoffeeDecorator(Coffee* c) : coffee(c) {}\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u5177\u4f53\u88c5\u9970\u5668\uff1a\u52a0\u725b\u5976<\/h4>\n\n\n\n
        class MilkDecorator : public CoffeeDecorator {\npublic:\n    MilkDecorator(Coffee* c) : CoffeeDecorator(c) {}\n    string getDescription() override { return coffee->getDescription() + \", Milk\"; }\n    double cost() override { return coffee->cost() + 0.5; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u5177\u4f53\u88c5\u9970\u5668\uff1a\u52a0\u7cd6<\/h4>\n\n\n\n
        class SugarDecorator : public CoffeeDecorator {\npublic:\n    SugarDecorator(Coffee* c) : CoffeeDecorator(c) {}\n    string getDescription() override { return coffee->getDescription() + \", Sugar\"; }\n    double cost() override { return coffee->cost() + 0.3; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f7f\u7528\u65b9\u6cd5<\/h4>\n\n\n\n
        int main() {\n    Coffee* coffee = new SimpleCoffee();\n    coffee = new MilkDecorator(coffee);\n    coffee = new SugarDecorator(coffee);\n\n    cout << coffee->getDescription() << endl;\n    cout << \"Total: $\" << coffee->cost() << endl;\n}\n<\/code><\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/p>\n\n\n\n
        Simple Coffee, Milk, Sugar\nTotal: $2.8\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f18\u70b9\u603b\u7ed3<\/h4>\n\n\n\n
        \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
        \u4e0d\u4fee\u6539\u7c7b\u5c31\u80fd\u6dfb\u52a0\u529f\u80fd<\/td>\u6ee1\u8db3\u5f00\u95ed\u539f\u5219<\/td><\/tr>
        \u53ef\u4ee5\u81ea\u7531\u7ec4\u5408\u529f\u80fd<\/td>\u7c7b\u4f3c\u201c\u53e0\u52a0 Buff\u201d<\/td><\/tr>
        \u66f4\u7075\u6d3b<\/td>\u6bd4\u7ee7\u627f\u66f4\u7075\u6d3b\u7684\u6269\u5c55\u65b9\u5f0f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
         \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
        [Client]\n   \u2193\n[Coffee] \u2190 \u62bd\u8c61\u63a5\u53e3\n   \u2193\n[SimpleCoffee] \u2190 \u88ab\u88c5\u9970\u5bf9\u8c61\n   \u2193\n[MilkDecorator]\n   \u2193\n[SugarDecorator]\n<\/code><\/code><\/pre>\n\n\n\n
        \n
        \u88c5\u9970\u5668<\/strong> = \u201c\u52a8\u6001\u53e0\u52a0\u529f\u80fd\u7684\u5305\u88c5\u5668\u201d\u3002<\/p>\n<\/blockquote>\n\n\n\n
        \n\n\n\n
        \u4e03\u3001\u89c2\u5bdf\u8005\u6a21\u5f0f\uff08Observer Pattern\uff09<\/h3>\n\n\n\n
        \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
        \u4e00\u53d8\u591a\u901a\u77e5\u673a\u5236\uff1a\u5f53\u4e00\u4e2a\u5bf9\u8c61\u7684\u72b6\u6001\u53d8\u5316\u65f6\uff0c\u81ea\u52a8\u901a\u77e5\u6240\u6709\u4f9d\u8d56\u5b83\u7684\u5bf9\u8c61\u3002<\/strong><\/p>\n\n\n\n
        \u5f53\u4e00\u4e2a\u5bf9\u8c61\uff08\u79f0\u4e3a Subject \/ \u88ab\u89c2\u5bdf\u8005<\/strong>\uff09\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5b83\u4f1a\u81ea\u52a8\u901a\u77e5\u6240\u6709\u201c\u5173\u5fc3\u5b83\u201d\u7684\u5bf9\u8c61\uff08\u79f0\u4e3a Observer \/ \u89c2\u5bdf\u8005<\/strong>\uff09\u3002
        \u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5bf9\u8c61\u4e4b\u95f4\u7684\u89e3\u8026<\/strong>\uff0c\u88ab\u89c2\u5bdf\u8005\u4e0d\u9700\u8981\u77e5\u9053\u89c2\u5bdf\u8005\u7684\u5177\u4f53\u5b9e\u73b0\u3002<\/p>\n\n\n\n
        \u7a0b\u5e8f\u4f8b\u5b50\uff08\u5929\u6c14\u7cfb\u7edf\uff09<\/h4>\n\n\n\n
        #include <iostream>\n#include <vector>\n#include <string>\nusing namespace std;\n\n\/\/ \u89c2\u5bdf\u8005\u63a5\u53e3\nclass Observer {\npublic:\n    virtual void update(float temp, float humidity) = 0;\n};\n\n\/\/ \u4e3b\u9898\uff08\u88ab\u89c2\u5bdf\u8005\uff09\nclass WeatherStation {\n    vector<Observer*> observers;\n    float temperature = 0.0, humidity = 0.0;\npublic:\n    void addObserver(Observer* obs) { observers.push_back(obs); }\n    void setWeather(float t, float h) {\n        temperature = t; humidity = h;\n        notifyAll();\n    }\nprivate:\n    void notifyAll() {\n        for (auto o : observers)\n            o->update(temperature, humidity);\n    }\n};\n\n\/\/ \u5177\u4f53\u89c2\u5bdf\u8005\nclass Display : public Observer {\n    string name;\npublic:\n    Display(string n): name(n) {}\n    void update(float t, float h) override {\n        cout << name << \" - Temp: \" << t << \" Humidity: \" << h << endl;\n    }\n};\n<\/code><\/code><\/pre>\n\n\n\n
        \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
        int main() {\n    WeatherStation station;\n    Display phone(\"Phone\");\n    Display tv(\"TV\");\n\n    station.addObserver(&phone);\n    station.addObserver(&tv);\n\n    station.setWeather(25.5, 60);\n}\n<\/code><\/code><\/pre>\n\n\n\n
        \u8f93\u51fa\uff1a<\/p>\n\n\n\n
        Phone - Temp: 25.5 Humidity: 60\nTV - Temp: 25.5 Humidity: 60\n<\/code><\/code><\/pre>\n\n\n\n
        python\u4f8b\u5b50<\/h4>\n\n\n\n
        \u60f3\u8c61\u4f60\u8ba2\u9605\u4e86\u4e00\u4e2a YouTube \u9891\u9053\uff1a<\/p>\n\n\n\n
          \n
        • \u5f53\u535a\u4e3b\u4e0a\u4f20\u65b0\u89c6\u9891\u65f6\uff08Subject \u72b6\u6001\u53d8\u5316\uff09\uff1b<\/li>\n\n\n\n
        • \u6240\u6709\u8ba2\u9605\u8005\uff08Observers\uff09\u90fd\u4f1a\u6536\u5230\u901a\u77e5\u3002<\/li>\n<\/ul>\n\n\n\n
          class Subject:\n    def __init__(self):\n        self._observers = []\n\n    def attach(self, observer):\n        self._observers.append(observer)\n\n    def detach(self, observer):\n        self._observers.remove(observer)\n\n    def notify(self, message):\n        for observer in self._observers:\n            observer.update(message)\n\n\nclass Observer:\n    def update(self, message):\n        pass\n\n\nclass ConcreteObserver(Observer):\n    def __init__(self, name):\n        self._name = name\n\n    def update(self, message):\n        print(f\"{self._name} \u6536\u5230\u901a\u77e5\uff1a{message}\")\n\n\n# \u4f7f\u7528\u793a\u4f8b\nif __name__ == \"__main__\":\n    subject = Subject()\n\n    user1 = ConcreteObserver(\"\u5c0f\u660e\")\n    user2 = ConcreteObserver(\"\u5c0f\u7ea2\")\n\n    subject.attach(user1)\n    subject.attach(user2)\n\n    subject.notify(\"\u65b0\u89c6\u9891\u53d1\u5e03\u5566\uff01\")<\/code><\/pre>\n\n\n\n
          \u8f93\u51fa\uff1a<\/p>\n\n\n\n
          \u5c0f\u660e \u6536\u5230\u901a\u77e5\uff1a\u65b0\u89c6\u9891\u53d1\u5e03\u5566\uff01\n\u5c0f\u7ea2 \u6536\u5230\u901a\u77e5\uff1a\u65b0\u89c6\u9891\u53d1\u5e03\u5566\uff01<\/code><\/pre>\n\n\n\n
          \u4f18\u70b9<\/h4>\n\n\n\n
          \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
          \u81ea\u52a8\u901a\u77e5\u673a\u5236<\/td>\u6570\u636e\u53d8\u5316\u2192\u89c6\u56fe\u81ea\u52a8\u66f4\u65b0<\/td><\/tr>
          \u677e\u8026\u5408<\/td>\u53d1\u5e03\u8005\u4e0d\u4f9d\u8d56\u8ba2\u9605\u8005\u6570\u91cf\u4e0e\u7c7b\u578b<\/td><\/tr>
          \u5e7f\u6cdb\u5e94\u7528<\/td>GUI\u3001\u4e8b\u4ef6\u7cfb\u7edf\u3001\u4fe1\u53f7\u69fd\u3001\u80a1\u7968\u884c\u60c5\u7b49<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
          \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
          [WeatherStation]\n   \u2502    (\u901a\u77e5)\n   \u25bc\n[DisplayA] [DisplayB] [DisplayC]\n<\/code><\/code><\/pre>\n\n\n\n
          \n
          \u201c\u6211\u53d8\u4e86\uff0c\u5c31\u544a\u8bc9\u6240\u6709\u8ba2\u9605\u6211\u7684\u4eba\u3002\u201d<\/p>\n<\/blockquote>\n\n\n\n
          \n\n\n\n
          \u516b\u3001\u7b56\u7565\u6a21\u5f0f\uff08Strategy Pattern\uff09<\/h3>\n\n\n\n
          \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
          \u5b9a\u4e49\u4e00\u7ec4\u7b97\u6cd5\uff08\u7b56\u7565\uff09\uff0c\u8ba9\u5b83\u4eec\u53ef\u4ee5\u4e92\u76f8\u66ff\u6362\uff0c\u8fd0\u884c\u65f6\u7075\u6d3b\u5207\u6362\u3002<\/strong><\/p>\n\n\n\n
          \u5c31\u50cf\u6e38\u620f\u89d2\u8272\u653b\u51fb\u65f6\u53ef\u4ee5\u9009\u62e9\u4e0d\u540c\u7b56\u7565\uff1a<\/p>\n\n\n\n
            \n
          • \u8fd1\u6218\u653b\u51fb<\/li>\n\n\n\n
          • \u8fdc\u7a0b\u5c04\u51fb<\/li>\n\n\n\n
          • \u9b54\u6cd5\u653b\u51fb
            \u89d2\u8272\u4e0d\u53d8\uff0c\u4f46\u653b\u51fb\u65b9\u5f0f\u53ef\u4ee5\u81ea\u7531\u5207\u6362\u3002<\/li>\n<\/ul>\n\n\n\n
            \u7a0b\u5e8f\u4f8b\u5b50\uff08AI \u653b\u51fb\u7b56\u7565\uff09<\/h4>\n\n\n\n
            \/\/ \u7b56\u7565\u63a5\u53e3\nclass AttackStrategy {\npublic:\n    virtual void attack() = 0;\n};\n\n\/\/ \u5177\u4f53\u7b56\u7565\nclass MeleeAttack : public AttackStrategy {\npublic:\n    void attack() override { cout << \"Performing melee attack!\\n\"; }\n};\nclass RangedAttack : public AttackStrategy {\npublic:\n    void attack() override { cout << \"Performing ranged attack!\\n\"; }\n};\n\n\/\/ \u4e0a\u4e0b\u6587\u7c7b\nclass Enemy {\nprivate:\n    AttackStrategy* strategy;\npublic:\n    void setStrategy(AttackStrategy* s) { strategy = s; }\n    void performAttack() { strategy->attack(); }\n};\n<\/code><\/code><\/pre>\n\n\n\n
            \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
            int main() {\n    Enemy enemy;\n    MeleeAttack melee;\n    RangedAttack ranged;\n\n    enemy.setStrategy(&melee);\n    enemy.performAttack();\n\n    enemy.setStrategy(&ranged);\n    enemy.performAttack();\n}\n<\/code><\/code><\/pre>\n\n\n\n
            \u8f93\u51fa\uff1a<\/p>\n\n\n\n
            Performing melee attack!\nPerforming ranged attack!\n<\/code><\/code><\/pre>\n\n\n\n
            \u4f18\u70b9<\/h4>\n\n\n\n
            \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
            \u2705 \u6613\u4e8e\u6269\u5c55\u7b97\u6cd5<\/td>\u65b0\u589e\u7b56\u7565\u4e0d\u7528\u6539\u4e3b\u7c7b<\/td><\/tr>
            \u2705 \u8fd0\u884c\u65f6\u5207\u6362\u884c\u4e3a<\/td>\u7075\u6d3b\u591a\u53d8<\/td><\/tr>
            \u2705 \u6d88\u9664\u5927\u91cf if-else<\/td>\u4ee3\u7801\u66f4\u6e05\u6670<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
            \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
            [Enemy]\n   \u2193\n(\u8c03\u7528)\n[AttackStrategy]\n   \u251c\u2500\u2500 MeleeAttack\n   \u2514\u2500\u2500 RangedAttack\n<\/code><\/code><\/pre>\n\n\n\n
            \n
            \u201c\u4e0d\u540c\u7684\u7b97\u6cd5\uff0c\u540c\u6837\u7684\u63a5\u53e3\uff0c\u81ea\u7531\u5207\u6362\u3002\u201d<\/p>\n<\/blockquote>\n\n\n\n
            \n\n\n\n
            \u4e5d\u3001\u547d\u4ee4\u6a21\u5f0f\uff08Command Pattern\uff09<\/h3>\n\n\n\n
            \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
            \u5c06\u201c\u8bf7\u6c42\u201d\u5c01\u88c5\u6210\u5bf9\u8c61\uff0c\u4ece\u800c\u80fd\u8bb0\u5f55\u3001\u64a4\u9500\u3001\u6392\u961f\u6267\u884c\u3002<\/strong><\/p>\n\n\n\n
            \u5c31\u50cf\u6e38\u620f\u91cc\u8f93\u5165\u7cfb\u7edf\uff1a<\/p>\n\n\n\n
              \n
            • \u6bcf\u4e2a\u6309\u952e\u52a8\u4f5c\uff08\u79fb\u52a8\u3001\u653b\u51fb\u3001\u8df3\u8dc3\uff09\u90fd\u662f\u4e00\u4e2a\u547d\u4ee4\uff1b<\/li>\n\n\n\n
            • \u53ef\u4ee5\u8bb0\u5f55\u547d\u4ee4\u5386\u53f2\uff1b<\/li>\n\n\n\n
            • \u8fd8\u80fd\u201c\u64a4\u9500\u201d\u6216\u201c\u91cd\u64ad\u201d\u6307\u4ee4\u3002<\/li>\n<\/ul>\n\n\n\n
              \u7a0b\u5e8f\u4f8b\u5b50\uff08\u6e38\u620f\u89d2\u8272\u547d\u4ee4\uff09<\/h4>\n\n\n\n
              \/\/ \u63a5\u6536\u8005\uff08\u6267\u884c\u5b9e\u9645\u64cd\u4f5c\uff09\nclass GameActor {\npublic:\n    void jump() { cout << \"Actor jumps!\\n\"; }\n    void shoot() { cout << \"Actor shoots!\\n\"; }\n};\n\n\/\/ \u547d\u4ee4\u63a5\u53e3\nclass Command {\npublic:\n    virtual void execute() = 0;\n};\n\n\/\/ \u5177\u4f53\u547d\u4ee4\nclass JumpCommand : public Command {\n    GameActor* actor;\npublic:\n    JumpCommand(GameActor* a) : actor(a) {}\n    void execute() override { actor->jump(); }\n};\nclass ShootCommand : public Command {\n    GameActor* actor;\npublic:\n    ShootCommand(GameActor* a) : actor(a) {}\n    void execute() override { actor->shoot(); }\n};\n\n\/\/ \u8c03\u7528\u8005\uff08Invoker\uff09\nclass InputHandler {\n    Command *jumpCmd, *shootCmd;\npublic:\n    InputHandler(Command* j, Command* s) : jumpCmd(j), shootCmd(s) {}\n    void pressJump() { jumpCmd->execute(); }\n    void pressShoot() { shootCmd->execute(); }\n};\n<\/code><\/code><\/pre>\n\n\n\n
              \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
              int main() {\n    GameActor actor;\n    JumpCommand jump(&actor);\n    ShootCommand shoot(&actor);\n    InputHandler handler(&jump, &shoot);\n\n    handler.pressJump();\n    handler.pressShoot();\n}\n<\/code><\/code><\/pre>\n\n\n\n
              \u8f93\u51fa\uff1a<\/p>\n\n\n\n
              Actor jumps!\nActor shoots!\n<\/code><\/code><\/pre>\n\n\n\n
              \u4f18\u70b9<\/h4>\n\n\n\n
              \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
              \u53ef\u64a4\u9500\u3001\u53ef\u91cd\u505a<\/td>\u4fdd\u5b58\u547d\u4ee4\u5386\u53f2<\/td><\/tr>
              \u6613\u4e8e\u6269\u5c55<\/td>\u65b0\u547d\u4ee4\u72ec\u7acb\u5b9e\u73b0<\/td><\/tr>
              \u89e3\u8026<\/td>\u8c03\u7528\u8005\u4e0e\u6267\u884c\u8005\u5b8c\u5168\u5206\u79bb<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
              [InputHandler]\n   \u2193\n[Command]\n   \u2193\n[GameActor]\n<\/code><\/code><\/pre>\n\n\n\n
              \n
              \u201c\u547d\u4ee4\u662f\u628a\u64cd\u4f5c\u6253\u5305\u6210\u5bf9\u8c61\uff0c\u8ba9\u4f60\u53ef\u4ee5\u8bb0\u5f55\u3001\u64a4\u9500\u3001\u91cd\u64ad\u5b83\u3002\u201d<\/p>\n<\/blockquote>\n\n\n\n
              \n\n\n\n
              \u5341\u3001\u72b6\u6001\u6a21\u5f0f\uff08State Pattern\uff09<\/h3>\n\n\n\n
              \u6838\u5fc3\u601d\u60f3<\/h4>\n\n\n\n
              \u5bf9\u8c61\u5728\u4e0d\u540c\u72b6\u6001\u4e0b\u8868\u73b0\u51fa\u4e0d\u540c\u7684\u884c\u4e3a\u3002<\/strong><\/p>\n\n\n\n
              \u5c31\u50cf\u6e38\u620f\u89d2\u8272\u5728\u4e0d\u540c\u72b6\u6001\u4e0b\uff08\u8d70\u8def\u3001\u8dd1\u6b65\u3001\u653b\u51fb\u3001\u6b7b\u4ea1\uff09\uff0c
              \u8f93\u5165\u76f8\u540c\u7684\u6307\u4ee4\uff0c\u884c\u4e3a\u5374\u5b8c\u5168\u4e0d\u540c\u3002<\/p>\n\n\n\n
              \u7a0b\u5e8f\u4f8b\u5b50\uff08\u89d2\u8272\u72b6\u6001\uff09<\/h4>\n\n\n\n
              class Character; \/\/ \u524d\u7f6e\u58f0\u660e\n\n\/\/ \u72b6\u6001\u63a5\u53e3\nclass State {\npublic:\n    virtual void handleInput(Character* c, string input) = 0;\n    virtual string getName() = 0;\n};\n\n\/\/ \u89d2\u8272\u7c7b\uff08\u4e0a\u4e0b\u6587\uff09\nclass Character {\nprivate:\n    State* currentState;\npublic:\n    Character(State* s) : currentState(s) {}\n    void setState(State* s) { currentState = s; }\n    void handleInput(string input) { currentState->handleInput(this, input); }\n    void showState() { cout << \"Current State: \" << currentState->getName() << endl; }\n};\n\n\/\/ \u5177\u4f53\u72b6\u6001\nclass IdleState : public State {\npublic:\n    void handleInput(Character* c, string input) override {\n        if (input == \"run\") c->setState(new RunningState());\n        else cout << \"Idle: doing nothing.\\n\";\n    }\n    string getName() override { return \"Idle\"; }\n};\n\nclass RunningState : public State {\npublic:\n    void handleInput(Character* c, string input) override {\n        if (input == \"stop\") c->setState(new IdleState());\n        else cout << \"Running fast!\\n\";\n    }\n    string getName() override { return \"Running\"; }\n};\n<\/code><\/code><\/pre>\n\n\n\n
              \u4f7f\u7528\u65b9\u5f0f<\/h4>\n\n\n\n
              int main() {\n    Character hero(new IdleState());\n    hero.showState();\n\n    hero.handleInput(\"run\");\n    hero.showState();\n\n    hero.handleInput(\"stop\");\n    hero.showState();\n}\n<\/code><\/code><\/pre>\n\n\n\n
              \u8f93\u51fa\uff1a<\/p>\n\n\n\n
              Current State: Idle\nCurrent State: Running\nCurrent State: Idle\n<\/code><\/code><\/pre>\n\n\n\n
              \u4f18\u70b9<\/h4>\n\n\n\n
              \u4f18\u70b9<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
              \u6e05\u6670\u5206\u79bb\u72b6\u6001\u884c\u4e3a<\/td>\u5404\u72b6\u6001\u72ec\u7acb\u3001\u4e92\u4e0d\u5e72\u6270<\/td><\/tr>
              \u6d88\u9664 if-else \u72b6\u6001\u5224\u65ad<\/td>\u7531\u591a\u6001\u81ea\u52a8\u5904\u7406<\/td><\/tr>
              \u52a8\u6001\u5207\u6362\u72b6\u6001<\/td>\u66f4\u7b26\u5408\u73b0\u5b9e\u903b\u8f91<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
              \u56fe\u793a\u7406\u89e3<\/h4>\n\n\n\n
              [Character]\n   \u2193(\u59d4\u6258)\n[State]\n   \u251c\u2500\u2500 IdleState\n   \u2514\u2500\u2500 RunningState\n<\/code><\/code><\/pre>\n\n\n\n
              \n
              \u201c\u5bf9\u8c61\u7684\u884c\u4e3a\u53d6\u51b3\u4e8e\u5f53\u524d\u72b6\u6001\uff0c\u4e0d\u540c\u72b6\u6001\u6709\u4e0d\u540c\u903b\u8f91\u3002\u201d<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"
              \u5728\u8f6f\u4ef6\u8bbe\u8ba1\u4e2d\uff0c\u8bbe\u8ba1\u6a21\u5f0f\uff08Design Patterns\uff09 \u662f\u4e00\u5957\u88ab\u53cd\u590d\u9a8c\u8bc1\u7684\u201c\u67b6\u6784\u7ecf\u9a8c\u603b\u7ed3\u201d\uff0c\u5b83\u4eec\u5e2e\u52a9\u6211\u4eec\u5199\u51fa […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"cybocfi_hide_featured_image":"","footnotes":""},"categories":[45],"tags":[67],"views":257,"_links":{"self":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/970"}],"collection":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=970"}],"version-history":[{"count":8,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/970\/revisions"}],"predecessor-version":[{"id":981,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=\/wp\/v2\/posts\/970\/revisions\/981"}],"wp:attachment":[{"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coni.top\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}