{"id":205251,"date":"2025-05-29T10:33:43","date_gmt":"2025-05-29T02:33:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205251\/"},"modified":"2025-05-29T10:33:43","modified_gmt":"2025-05-29T02:33:43","slug":"python-%e4%b8%ad%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%e5%a4%9a%e9%87%8d%e7%bb%a7%e6%89%bf%e4%b8%8b%e6%8c%87%e5%90%91%e7%b1%bb%e5%ae%9e%e4%be%8b%e6%97%a0%e6%b3%95%e8%b0%83%e7%94%a8%e8%a2%ab%e6%8c%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205251\/","title":{"rendered":"Python \u4e2d\u5982\u4f55\u89e3\u51b3\u591a\u91cd\u7ee7\u627f\u4e0b\u6307\u5411\u7c7b\u5b9e\u4f8b\u65e0\u6cd5\u8c03\u7528\u88ab\u6307\u5411\u5bf9\u8c61\u9b54\u6cd5\u65b9\u6cd5\u7684\u95ee\u9898\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Python \u4e2d\u5982\u4f55\u89e3\u51b3\u591a\u91cd\u7ee7\u627f\u4e0b\u6307\u5411\u7c7b\u5b9e\u4f8b\u65e0\u6cd5\u8c03\u7528\u88ab\u6307\u5411\u5bf9\u8c61\u9b54\u6cd5\u65b9\u6cd5\u7684\u95ee\u9898\uff1f<\/h1>\n

\u4ece\u73b0\u5728\u5f00\u59cb\uff0c\u6211\u4eec\u8981\u52aa\u529b\u5b66\u4e60\u5566\uff01\u4eca\u5929\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u8bf7\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427\uff01\u4e0b\u6587\u4e2d\u7684\u5185\u5bb9\u6211\u4eec\u4e3b\u8981\u4f1a\u6d89\u53ca\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5728\u9605\u8bfb\u672c\u6587\u8fc7\u7a0b\u4e2d\u6709\u9047\u5230\u4e0d\u6e05\u695a\u7684\u5730\u65b9\uff0c\u6b22\u8fce\u7559\u8a00\u5440\uff01\u6211\u4eec\u4e00\u8d77\u8ba8\u8bba\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n

<\/p>\n

pointer\u7c7b\u7684\u52a8\u6001\u9b54\u6cd5\u65b9\u6cd5\u4fee\u6539<\/strong><\/p>\n

\u5728python\u4e2d\uff0c\u591a\u91cd\u7ee7\u627f\u662f\u4e00\u4e2a\u590d\u6742\u7684\u529f\u80fd\uff0c\u5c24\u5176\u5728\u6d89\u53ca\u5230\u9b54\u6cd5\u65b9\u6cd5\u65f6\u3002\u5f53\u6307\u5411\u4e00\u4e2a\u88ab\u7ee7\u627f\u7684\u5bf9\u8c61\u65f6\uff0c\u6307\u5411\u7c7b\u7684\u5b9e\u4f8b\u53ef\u80fd\u65e0\u6cd5\u8c03\u7528\u88ab\u6307\u5411\u5bf9\u8c61\u7684\u9b54\u6cd5\u65b9\u6cd5\u3002<\/p>\n

\u8981\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u9700\u8981\u52a8\u6001\u4fee\u6539pointer\u7c7b\u7684\u9b54\u6cd5\u65b9\u6cd5\u3002\u5176\u601d\u8def\u662f\u5c06\u88ab\u6307\u5411\u5bf9\u8c61\u7684\u9b54\u6cd5\u65b9\u6cd5\u590d\u5236\u5230\u6307\u5411\u5bf9\u8c61\u4e2d\uff0c\u4ec5\u5728\u5916\u90e8\u8c03\u7528\u6307\u5411\u5bf9\u8c61\u65f6\u624d\u53d1\u751f\uff0c\u8fd9\u6837\u53ef\u4ee5\u4fdd\u7559\u591a\u91cd\u7ee7\u627f\u7684\u4ee3\u7801\u63d0\u793a\u3002<\/p>\n

\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\uff1a<\/p>\n

class pointer:\n  def __init__(self, value=none, *, cls_=none):\n      ...\n      self.__interior = false  # \u6307\u793a\u5185\u90e8\u521d\u59cb\u5316\u5b8c\u6210\n      for i in dir(value):\n          if i != '__class__':\n              if self.__interior:\n                  # \u4ec5\u5728\u5185\u90e8\u521d\u59cb\u5316\u65f6\u8bbe\u7f6e\u5c5e\u6027\n                  setattr(self, i, none)\n              else:\n                  # \u5bf9\u4e8eself.__interior\u4e3afalse\u7684\u5916\u90e8\u8c03\u7528\uff0c\u52a8\u6001\u8bbe\u7f6e\u5c5e\u6027\n                  setattr(self, i, getattr(value, i))<\/pre>\n
\u5728\u6307\u5411\u7c7b\uff08\u4f8b\u5982strpointer\uff09\u7684\u6784\u9020\u51fd\u6570\u4e2d\uff0c\u5c06\u5176\u9b54\u6cd5\u65b9\u6cd5\u52a8\u6001\u6dfb\u52a0\u5230\u6307\u5411\u5bf9\u8c61\u4e2d\uff1a<\/p>\n
class StrPointer(Pointer, str):\n  def __init__(self, value=None, *, cls_=None):\n      super().__init__(value=value, cls_=cls_)\n      if value is not None and cls_ is not None:\n          for i in cls_.__dict__:\n              # \u4ec5\u6dfb\u52a0\u6ca1\u6709\u5728\u6307\u5411\u5bf9\u8c61\u4e2d\u5b9a\u4e49\u7684\u9b54\u6cd5\u65b9\u6cd5\n              if i.startswith('__') and i.endswith('__') and not hasattr(type(self), i):\n                  setattr(self, i, getattr(cls_, i))<\/pre>\n
\u8fd9\u6837\uff0c\u5f53\u5916\u90e8\u8c03\u7528\u6307\u5411\u5bf9\u8c61\u7684\u9b54\u6cd5\u65b9\u6cd5\uff08\u4f8b\u5982print(s)\uff09\u65f6\uff0c\u5c06\u89e6\u53d1\u5176\u5185\u90e8\u7684\u52a8\u6001\u5c5e\u6027\u8bbe\u7f6e\uff0c\u5141\u8bb8\u5b83\u8bbf\u95ee\u88ab\u6307\u5411\u5bf9\u8c61\u7684\u9b54\u6cd5\u65b9\u6cd5\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300aPython \u4e2d\u5982\u4f55\u89e3\u51b3\u591a\u91cd\u7ee7\u627f\u4e0b\u6307\u5411\u7c7b\u5b9e\u4f8b\u65e0\u6cd5\u8c03\u7528\u88ab\u6307\u5411\u5bf9\u8c61\u9b54\u6cd5\u65b9\u6cd5\u7684\u95ee\u9898\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Python \u4e2d\u5982\u4f55\u89e3\u51b3\u591a\u91cd\u7ee7\u627f...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205251","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205251"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205251\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}