{"id":3268,"date":"2025-06-03T15:44:38","date_gmt":"2025-06-04T08:23:38","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3268"},"modified":"2025-06-04T15:44:38","modified_gmt":"2025-06-04T08:23:38","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84property%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84property%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u7684 property() \u51fd\u6578\uff1a2025 \u6700\u65b0\u8a9e\u6cd5\u8207\u5be6\u4f5c\u7bc4\u4f8b"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Python \u7684 property() \u51fd\u6578<\/h1>\n

Python \u4e2d\u7684 `property()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u5f37\u5927\u7684\u5de5\u5177\uff0c\u5b83\u5141\u8a31\u6211\u5011\u5c07\u7279\u5b9a\u7684\u5c6c\u6027\u8a2d\u7f6e\u70ba\u53ef\u8b80\u53d6\u6216\u53ef\u5beb\u5165\uff0c\u800c\u4e0d\u9700\u8981\u4f7f\u7528\u7279\u5b9a\u7684\u51fd\u6578\u4f86\u7372\u53d6\u6216\u8a2d\u7f6e\u5c6c\u6027\u503c\u3002\u9019\u7a2e\u5c01\u88dd\u7684\u6982\u5ff5\u80fd\u5e6b\u52a9\u6211\u5011\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n

<\/p>\n

property() \u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n

`property()` \u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

“`python
\nproperty(fget=None, fset=None, fdel=None, doc=None)
\n“`<\/p>\n

– `fget`\uff1a\u7528\u65bc\u7372\u53d6\u5c6c\u6027\u503c\u7684\u51fd\u6578\u3002
\n– `fset`\uff1a\u7528\u65bc\u8a2d\u7f6e\u5c6c\u6027\u503c\u7684\u51fd\u6578\u3002
\n– `fdel`\uff1a\u7528\u65bc\u522a\u9664\u5c6c\u6027\u7684\u51fd\u6578\u3002
\n– `doc`\uff1a\u7528\u65bc\u63d0\u4f9b\u5c6c\u6027\u7684\u6587\u6a94\u8aaa\u660e\u3002<\/p>\n

\u4f7f\u7528 property() \u51fd\u6578\u7684\u7bc4\u4f8b<\/h2>\n

\u4e0b\u9762\u662f\u4e00\u500b\u4f7f\u7528 `property()` \u51fd\u6578\u7684\u5b8c\u6574\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5b9a\u7fa9\u5177\u6709 getter\u3001setter \u548c deleter \u7684\u5c6c\u6027\uff1a<\/p>\n

“`python
\nclass Person:
\n def __init__(self, name):
\n self._name = name # \u6ce8\u610f\u9019\u88e1\u4f7f\u7528\u4e86\u79c1\u6709\u8b8a\u6578<\/p>\n

# getter
\n @property
\n def name(self):
\n return self._name<\/p>\n

# setter
\n @name.setter
\n def name(self, value):
\n if not isinstance(value, str):
\n raise TypeError(‘Expected a string’)
\n self._name = value<\/p>\n

# deleter
\n @name.deleter
\n def name(self):
\n raise AttributeError(“Can’t delete attribute”)<\/p>\n

# \u5be6\u4f5c\u7bc4\u4f8b
\np = Person(‘John’)
\nprint(p.name) # \u8f38\u51fa: John<\/p>\n

p.name = ‘Jack’
\nprint(p.name) # \u8f38\u51fa: Jack<\/p>\n

try:
\n del p.name
\nexcept AttributeError as e:
\n print(e) # \u8f38\u51fa: Can’t delete attribute
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b `Person` \u985e\u5225\uff0c\u4e26\u5b9a\u7fa9\u4e86\u4e00\u500b `name` \u5c6c\u6027\u3002\u9019\u500b\u5c6c\u6027\u53ef\u4ee5\u88ab\u8b80\u53d6\u548c\u5beb\u5165\uff0c\u4f46\u4e0d\u80fd\u88ab\u522a\u9664\uff0c\u9019\u6a23\u7684\u8a2d\u8a08\u589e\u52a0\u4e86\u5c6c\u6027\u7684\u5b89\u5168\u6027\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664\u63d0\u793a<\/h2>\n

1. **TypeError**\uff1a\u7576\u4f60\u5617\u8a66\u5c07\u975e\u5b57\u7b26\u4e32\u985e\u578b\u7684\u503c\u8ce6\u7d66 `name` \u5c6c\u6027\u6642\uff0c\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u8acb\u78ba\u4fdd\u8ce6\u503c\u70ba\u5b57\u4e32\u985e\u578b\u3002
\n2. **AttributeError**\uff1a\u5982\u679c\u5617\u8a66\u522a\u9664 `name` \u5c6c\u6027\uff0c\u5c07\u5f15\u767c\u6b64\u932f\u8aa4\uff0c\u56e0\u70ba\u6211\u5011\u5728 deleter \u4e2d\u660e\u78ba\u7981\u6b62\u522a\u9664\u3002<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h2>\n

– `property()` \u51fd\u6578\u53ef\u7528\u65bc\u4efb\u4f55\u985e\u5225\u4e2d\uff0c\u4e0d\u50c5\u9650\u65bc\u57fa\u672c\u6578\u64da\u985e\u578b\u3002\u4f60\u53ef\u4ee5\u5c07\u5176\u61c9\u7528\u65bc\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\u6216\u7528\u65bc\u6578\u64da\u9a57\u8b49\u3002
\n– \u5c07 `property()` \u8207\u8cc7\u6599\u5eab\u6a21\u578b\u7d50\u5408\u4f7f\u7528\uff0c\u53ef\u4ee5\u512a\u5316\u6578\u64da\u7684\u8b80\u53d6\u548c\u5beb\u5165\u904e\u7a0b\u3002<\/p>\n

\u60f3\u4e86\u89e3\u66f4\u591a Python \u4e3b\u984c\u6216\u6709\u8208\u8da3\u7684\u6559\u5b78\u6587\u7ae0\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u88e1\u7684 [Python \u6559\u5b78\u8cc7\u6e90](https:\/\/vocus.cc)\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

`property()` \u51fd\u6578\u662f\u4e00\u500b\u6975\u5177\u50f9\u503c\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u8b93\u6211\u5011\u66f4\u9748\u6d3b\u5730\u64cd\u63a7\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u589e\u5f37\u4ee3\u78bc\u7684\u5c01\u88dd\u6027\u8207\u53ef\u7dad\u8b77\u6027\u3002\u901a\u904e\u4f7f\u7528 getter\u3001setter \u548c deleter\uff0c\u6211\u5011\u53ef\u4ee5\u66f4\u7cbe\u78ba\u5730\u63a7\u5236\u5c6c\u6027\u7684\u884c\u70ba\u3002<\/p>\n

\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff08Q&A\uff09<\/h2>\n

**Q1: \u70ba\u4ec0\u9ebc\u8981\u4f7f\u7528 property() \u51fd\u6578\u800c\u4e0d\u662f\u76f4\u63a5\u8a2a\u554f\u5c6c\u6027\uff1f**
\nA1: \u4f7f\u7528 `property()` \u51fd\u6578\u53ef\u4ee5\u589e\u5f37\u4ee3\u78bc\u7684\u5c01\u88dd\u6027\uff0c\u8b93\u4f60\u53ef\u4ee5\u5728\u4e0d\u6539\u8b8a\u5916\u90e8\u63a5\u53e3\u7684\u60c5\u6cc1\u4e0b\u6dfb\u52a0\u908f\u8f2f\uff0c\u6bd4\u5982\u6578\u64da\u9a57\u8b49\u3002<\/p>\n

**Q2: property() \u51fd\u6578\u7684\u6027\u80fd\u6703\u53d7\u5230\u5f71\u97ff\u55ce\uff1f**
\nA2: \u4f7f\u7528 `property()` \u51fd\u6578\u6703\u5e36\u4f86\u5fae\u5c0f\u7684\u6027\u80fd\u958b\u92b7\uff0c\u4f46\u9019\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\u662f\u53ef\u4ee5\u5ffd\u7565\u7684\uff0c\u5c24\u5176\u662f\u8207\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u76f8\u6bd4\u3002<\/p>\n

**Q3: \u6211\u53ef\u4ee5\u5728\u591a\u500b\u5c6c\u6027\u4e0a\u4f7f\u7528 property() \u55ce\uff1f**
\nA3: \u7576\u7136\u53ef\u4ee5\uff01\u4f60\u53ef\u4ee5\u5728\u540c\u4e00\u500b\u985e\u4e2d\u70ba\u591a\u500b\u5c6c\u6027\u5b9a\u7fa9 `property()`\uff0c\u9019\u6a23\u53ef\u4ee5\u9748\u6d3b\u5730\u63a7\u5236\u5b83\u5011\u7684\u884c\u70ba\u3002<\/p>\n

—<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e86\u89e3Python\u4e2d\u7684property()\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u8b93\u4f60\u5c07\u7279\u5b9a\u7684\u5c6c\u6027\u8a2d\u7f6e\u70ba\u53ef\u8b80\u53d6\u3001\u53ef\u5beb\u5165\u6216\u53ef\u522a\u9664\u7684\u5c6c\u6027\uff0c\u4e26\u63d0\u4f9b\u66f4\u591a\u7684\u63a7\u5236\u548c\u5b89\u5168\u6027\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u8a73\u7d30\u4ecb\u7d39property()\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5b83\u5982\u4f55\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u7ba1\u7406\u4f60\u7684Python\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3268","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-QI","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3268","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3268"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3268\/revisions"}],"predecessor-version":[{"id":3269,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3268\/revisions\/3269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3268"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3268"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3268"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}