{"id":128,"date":"2026-08-04T18:50:57","date_gmt":"2026-08-04T10:50:57","guid":{"rendered":"https:\/\/www.cloudnote.cc\/?p=128"},"modified":"2026-08-04T18:50:57","modified_gmt":"2026-08-04T10:50:57","slug":"%e3%80%90python%e3%80%91%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e8%a1%a5%e5%85%85%e5%8a%a8%e6%80%81%e5%a4%9a%e6%80%81","status":"publish","type":"post","link":"https:\/\/www.cloudnote.cc\/index.php\/2026\/08\/04\/%e3%80%90python%e3%80%91%e9%9d%a2%e5%90%91%e5%af%b9%e8%b1%a1%e8%a1%a5%e5%85%85%e5%8a%a8%e6%80%81%e5%a4%9a%e6%80%81\/","title":{"rendered":"\u3010Python\u3011\u9762\u5411\u5bf9\u8c61\u8865\u5145(\u52a8\u6001\u591a\u6001)"},"content":{"rendered":"<p>\u4e3a\u4f55\u8865\u5145\u8fd9\u4e2a\u5462,\u6211\u4eec\u5728\u770b\u4e00\u4e9b\u6846\u67b6\u6e90\u7801\u7684\u65f6\u5019,\u7ecf\u5e38\u5728\u4e00\u4e2a\u7c7b\u7684\u65b9\u6cd5\u4e2d\u770b\u5230\u8c03\u7528\u4e86\u4e00\u4e2a\u65b9\u6cd5,\u8fd9\u4e2a\u65b9\u6cd5\u5728\u672c\u7c7b\u6ca1\u6709\u5b9a\u4e49,\u5728\u7236\u7c7b\u53ca\u4e00\u76f4\u5f80\u4e0a\u90fd\u6ca1\u6709\u5b9a\u4e49,\u53cd\u800c\u5728\u6700\u7ec8\u7684\u5b59\u5b50\u7ee7\u627f\u7c7b\u627e\u5230\u4e86,\u8fd9\u4e2a\u5c31\u662f\u52a8\u6001\u591a\u6001,\u5176\u5b9e\u672c\u8d28\u5c31\u662fMRO\u67e5\u627e\u539f\u7406\u3002\n\u793a\u4f8b:<\/p>\n<pre><code class=\"lang-python language-python python\">class A:\n    pass\n\nclass B(A):\n\n    def f1(self):\n        self.print_info(&quot;\u4f60\u597d&quot;)\n        print(&quot;self\u7684id:&quot;,id(self))\n        print(isinstance(self,D))\n\nclass C(B):\n\n    def print_info(self, msg):\n        print(&quot;msg:&quot;, msg)\n\nclass D(C):\n    pass\n\nd = D()\nd.f1()\nprint(&quot;d\u5bf9\u8c61\u7684id:&quot;,id(d))\nprint(d.__dict__)\n<\/code><\/pre>\n<p>\u6253\u5370\u7ed3\u679c:<\/p>\n<pre><code>msg: \u4f60\u597d\nself\u7684id: 4342261008\nTrue\nd\u5bf9\u8c61\u7684id: 4342261008\n{}<\/code><\/pre>\n<p>d.f1()\u65f6\u5230B\u7684f1\u51fd\u6570\u91ccself\u5c31\u662fd\u5bf9\u8c61\u3002\n\u7528MRO\u5206\u6790\u5b8c\u5168\u4e00\u81f4:<\/p>\n<ul>\n<li>d.f1()\u540e:\u67e5\u627e\u5bf9\u8c61d\u7684<strong>dict<\/strong>\u7a7a\u7684<\/li>\n<li>\u5f80C\u4e2d\u627e,C\u4e2d\u6ca1\u627e\u5230<\/li>\n<li>\u5f80B\u4e2d\u627e,B\u4e2d\u627e\u5230\u4e86<\/li>\n<li>\u8c03\u7528self.print_info(&#8220;\u4f60\u597d&#8221;),\u5176\u5b9e\u5c31\u662fd.print_info(&#8220;\u4f60\u597d&#8221;)<\/li>\n<li>\u53c8\u5f00\u59cb\u4eced.<strong>dict<\/strong>\u627e,\u6ca1\u627e\u5230<\/li>\n<li>\u5f80C\u4e2d\u627e,C\u4e2d\u627e\u5230\u4e86<\/li>\n<li>\u6267\u884cprint_info(&#8220;\u4f60\u597d&#8221;)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>\u4e3a\u4f55\u8865\u5145\u8fd9\u4e2a\u5462,\u6211\u4eec\u5728\u770b\u4e00\u4e9b\u6846\u67b6\u6e90\u7801\u7684\u65f6\u5019,\u7ecf\u5e38\u5728\u4e00\u4e2a\u7c7b\u7684\u65b9\u6cd5\u4e2d\u770b\u5230\u8c03\u7528\u4e86\u4e00\u4e2a\u65b9\u6cd5,\u8fd9\u4e2a\u65b9\u6cd5\u5728\u672c\u7c7b\u6ca1\u6709\u5b9a\u4e49,\u5728\u7236\u7c7b\u53ca\u4e00\u76f4\u5f80\u4e0a\u90fd\u6ca1\u6709\u5b9a\u4e49,\u53cd\u800c\u5728\u6700\u7ec8\u7684\u5b59\u5b50\u7ee7\u627f\u7c7b\u627e&#8230;<\/p>","protected":false},"author":1,"featured_media":106,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[45],"class_list":["post-128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"_links":{"self":[{"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/posts\/128","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/comments?post=128"}],"version-history":[{"count":1,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/posts\/128\/revisions"}],"predecessor-version":[{"id":129,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/posts\/128\/revisions\/129"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/media\/106"}],"wp:attachment":[{"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/media?parent=128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/categories?post=128"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cloudnote.cc\/index.php\/wp-json\/wp\/v2\/tags?post=128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}