\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff08Factory Method Pattern\uff09\u662f\u4e00\u79cd\u521b\u5efa\u578b\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u8ba9\u5b50\u7c7b\u51b3\u5b9a\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\u3002\u5de5\u5382\u65b9\u6cd5\u4f7f\u5f97\u4e00\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u5316\u5ef6\u8fdf\u5230\u5176\u5b50\u7c7b\u3002\u901a\u8fc7\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5c06\u5bf9\u8c61\u7684\u521b\u5efa\u8fc7\u7a0b\u4e0e\u4f7f\u7528\u8fc7\u7a0b\u5206\u79bb\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002<\/p>\n\n\n\n
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u7684\u7ed3\u6784
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u51e0\u4e2a\u89d2\u8272\uff1a<\/p>\n\n\n\n
\u62bd\u8c61\u4ea7\u54c1\uff08Product\uff09\uff1a\u5b9a\u4e49\u4ea7\u54c1\u7684\u63a5\u53e3\u3002
\u5177\u4f53\u4ea7\u54c1\uff08ConcreteProduct\uff09\uff1a\u5b9e\u73b0\u62bd\u8c61\u4ea7\u54c1\u63a5\u53e3\u7684\u5177\u4f53\u4ea7\u54c1\u7c7b\u3002
\u62bd\u8c61\u5de5\u5382\uff08Creator\uff09\uff1a\u58f0\u660e\u5de5\u5382\u65b9\u6cd5\uff0c\u7528\u4e8e\u8fd4\u56de\u4e00\u4e2a\u4ea7\u54c1\u5bf9\u8c61\u3002\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u5de5\u5382\u65b9\u6cd5\u7684\u9ed8\u8ba4\u5b9e\u73b0\u3002
\u5177\u4f53\u5de5\u5382\uff08ConcreteCreator\uff09\uff1a\u5b9e\u73b0\u62bd\u8c61\u5de5\u5382\u63a5\u53e3\uff0c\u91cd\u5b9a\u4e49\u5de5\u5382\u65b9\u6cd5\u4ee5\u8fd4\u56de\u4e00\u4e2a\u5177\u4f53\u4ea7\u54c1\u5b9e\u4f8b\u3002
\u793a\u4f8b
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u65e5\u5fd7\u7cfb\u7edf\uff0c\u53ef\u4ee5\u8bb0\u5f55\u65e5\u5fd7\u5230\u63a7\u5236\u53f0\u6216\u6587\u4ef6\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u6765\u5b9e\u73b0\u4e0d\u540c\u65e5\u5fd7\u8bb0\u5f55\u65b9\u5f0f\u7684\u9009\u62e9\u548c\u521b\u5efa\u3002<\/p>\n\n\n\n
\u5b9a\u4e49\u62bd\u8c61\u4ea7\u54c1\u548c\u5177\u4f53\u4ea7\u54c1
<\/p>\n\n\n\n
from abc import ABC, abstractmethod\n\nclass Logger(ABC):\n @abstractmethod\n def log(self, message: str):\n pass\n\nclass ConsoleLogger(Logger):\n def log(self, message: str):\n print(f\"Console: {message}\")\n\nclass FileLogger(Logger):\n def __init__(self, filename: str):\n self.filename = filename\n\n def log(self, message: str):\n with open(self.filename, 'a') as f:\n f.write(f\"File: {message}\\n\")<\/code><\/pre>\n\n\n\n\u5b9a\u4e49\u62bd\u8c61\u5de5\u5382\u548c\u5177\u4f53\u5de5\u5382<\/p>\n\n\n\n
class LoggerFactory(ABC):\n @abstractmethod\n def create_logger(self) -> Logger:\n pass\n\nclass ConsoleLoggerFactory(LoggerFactory):\n def create_logger(self) -> Logger:\n return ConsoleLogger()\n\nclass FileLoggerFactory(LoggerFactory):\n def __init__(self, filename: str):\n self.filename = filename\n\n def create_logger(self) -> Logger:\n return FileLogger(self.filename)\n<\/code><\/pre>\n\n\n\n\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f<\/p>\n\n\n\n
def main():\n # \u521b\u5efa\u63a7\u5236\u53f0\u65e5\u5fd7\u8bb0\u5f55\u5668\n console_factory = ConsoleLoggerFactory()\n console_logger = console_factory.create_logger()\n console_logger.log(\"This is a console log message.\")\n\n # \u521b\u5efa\u6587\u4ef6\u65e5\u5fd7\u8bb0\u5f55\u5668\n file_factory = FileLoggerFactory(\"app.log\")\n file_logger = file_factory.create_logger()\n file_logger.log(\"This is a file log message.\")\n\nif __name__ == \"__main__\":\n main()<\/code><\/pre>\n\n\n\n\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cLogger\u662f\u62bd\u8c61\u4ea7\u54c1\uff0cConsoleLogger\u548cFileLogger\u662f\u5177\u4f53\u4ea7\u54c1\u3002LoggerFactory\u662f\u62bd\u8c61\u5de5\u5382\uff0cConsoleLoggerFactory\u548cFileLoggerFactory\u662f\u5177\u4f53\u5de5\u5382\u3002\u901a\u8fc7\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u7075\u6d3b\u5730\u9009\u62e9\u548c\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u7684\u65e5\u5fd7\u8bb0\u5f55\u5668\uff0c\u800c\u4e0d\u9700\u8981\u4fee\u6539\u5ba2\u6237\u7aef\u4ee3\u7801\u3002<\/p>\n\n\n\n
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u7684\u4f18\u7f3a\u70b9
\u4f18\u70b9
\u9075\u5faa\u5f00\u95ed\u539f\u5219\uff1a\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u73b0\u6709\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u65b0\u4ea7\u54c1\u3002
\u63d0\u9ad8\u7075\u6d3b\u6027\uff1a\u53ef\u4ee5\u6839\u636e\u9700\u8981\u5728\u8fd0\u884c\u65f6\u9009\u62e9\u548c\u521b\u5efa\u5177\u4f53\u7684\u4ea7\u54c1\u3002
\u5c01\u88c5\u5bf9\u8c61\u521b\u5efa\u8fc7\u7a0b\uff1a\u5c06\u5bf9\u8c61\u7684\u521b\u5efa\u8fc7\u7a0b\u5c01\u88c5\u5728\u5de5\u5382\u7c7b\u4e2d\uff0c\u51cf\u5c11\u4e86\u5ba2\u6237\u7aef\u4ee3\u7801\u7684\u590d\u6742\u6027\u3002
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\u96be\u4ee5\u7ba1\u7406\uff1a\u5f53\u4ea7\u54c1\u79cd\u7c7b\u589e\u591a\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5de5\u5382\u7c7b\u7684\u6570\u91cf\u589e\u52a0\uff0c\u7ba1\u7406\u8d77\u6765\u8f83\u4e3a\u56f0\u96be\u3002
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u7684\u9002\u7528\u573a\u666f
\u521b\u5efa\u5bf9\u8c61\u9700\u8981\u8f83\u590d\u6742\u7684\u8fc7\u7a0b\uff1a\u5bf9\u8c61\u7684\u521b\u5efa\u8fc7\u7a0b\u8f83\u4e3a\u590d\u6742\uff0c\u5305\u542b\u591a\u4e2a\u6b65\u9aa4\u6216\u6d89\u53ca\u591a\u4e2a\u4f9d\u8d56\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u3002
\u9700\u8981\u7075\u6d3b\u5730\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\uff1a\u6839\u636e\u4e0d\u540c\u7684\u6761\u4ef6\u6216\u73af\u5883\uff0c\u5728\u8fd0\u884c\u65f6\u9009\u62e9\u548c\u521b\u5efa\u4e0d\u540c\u7c7b\u578b\u7684\u5bf9\u8c61\u3002
\u9075\u5faa\u5f00\u95ed\u539f\u5219\uff1a\u9700\u8981\u5728\u4e0d\u4fee\u6539\u73b0\u6709\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u65b0\u4ea7\u54c1\u3002
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u4e0e\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u7684\u533a\u522b
\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\uff1a\u7531\u4e00\u4e2a\u5de5\u5382\u7c7b\u8d1f\u8d23\u521b\u5efa\u6240\u6709\u4ea7\u54c1\uff0c\u5de5\u5382\u7c7b\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u6839\u636e\u4f20\u5165\u7684\u53c2\u6570\u6765\u521b\u5efa\u5177\u4f53\u4ea7\u54c1\u3002\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u4e0d\u7b26\u5408\u5f00\u95ed\u539f\u5219\u3002
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff1a\u5c06\u5bf9\u8c61\u521b\u5efa\u7684\u804c\u8d23\u5206\u6563\u5230\u591a\u4e2a\u5177\u4f53\u5de5\u5382\u7c7b\u4e2d\uff0c\u6bcf\u4e2a\u5177\u4f53\u5de5\u5382\u7c7b\u8d1f\u8d23\u521b\u5efa\u4e00\u79cd\u5177\u4f53\u4ea7\u54c1\u3002\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u7b26\u5408\u5f00\u95ed\u539f\u5219\u3002
\u603b\u7ed3
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u662f\u4e00\u79cd\u521b\u5efa\u578b\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u901a\u8fc7\u5b9a\u4e49\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u5c06\u5bf9\u8c61\u7684\u521b\u5efa\u8fc7\u7a0b\u5ef6\u8fdf\u5230\u5b50\u7c7b\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u7075\u6d3b\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u901a\u8fc7\u4f7f\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5728\u4e0d\u4fee\u6539\u73b0\u6709\u4ee3\u7801\u7684\u60c5\u51b5\u4e0b\u589e\u52a0\u65b0\u4ea7\u54c1\uff0c\u51cf\u5c11\u4e86\u4ee3\u7801\u8026\u5408\uff0c\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u53ef\u7ef4\u62a4\u6027\u3002\u5408\u7406\u5e94\u7528\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff0c\u53ef\u4ee5\u663e\u8457\u63d0\u5347\u4ee3\u7801\u8d28\u91cf\u548c\u8bbe\u8ba1\u6c34\u5e73\u3002
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\u539f\u6587\u94fe\u63a5\uff1ahttps:\/\/blog.csdn.net\/weixin_55252589\/article\/details\/139072230<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\uff08Factory Method Pattern\uff09\u662f\u4e00\u79cd\u521b\u5efa\u578b\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u5b83\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u7684\u63a5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-2084","post","type-post","status-publish","format-standard","hentry","category-10"],"_links":{"self":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2084","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2084"}],"version-history":[{"count":1,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2084\/revisions"}],"predecessor-version":[{"id":2085,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/posts\/2084\/revisions\/2085"}],"wp:attachment":[{"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2084"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2084"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blog.xtaa.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2084"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}