{"id":2946,"date":"2025-06-01T16:29:43","date_gmt":"2025-06-04T09:19:43","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2946"},"modified":"2025-06-04T16:29:43","modified_gmt":"2025-06-04T09:19:43","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84vars%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%84vars%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u5168\u9762\u4e86\u89e3 Python \u7684 vars() \u51fd\u6578\uff1a\u6700\u65b0\u7528\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\uff082025\u7248\uff09"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Python, vars(), \u5c6c\u6027\u5b57\u5178, Python \u6559\u5b78, Python \u51fd\u6578\"><\/p>\n<p>Python \u662f\u4e00\u7a2e\u975e\u5e38\u6d41\u884c\u4e14\u5f37\u5927\u7684\u7a0b\u5f0f\u8a9e\u8a00\u3002\u5b83\u63d0\u4f9b\u4e86\u8a31\u591a\u6709\u7528\u7684\u529f\u80fd\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f `vars()` \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u7528\u4f86\u8fd4\u56de\u5c0d\u8c61\u7684\u5c6c\u6027\u5b57\u5178\uff0c\u5e6b\u52a9\u6211\u5011\u5feb\u901f\u4e86\u89e3\u5c0d\u8c61\u7684\u7d50\u69cb\u3002<\/p>\n<h2>\u4ec0\u9ebc\u662f vars() \u51fd\u6578\uff1f<\/h2>\n<p>`vars()` \u51fd\u6578\u662f Python \u4e2d\u7684\u4e00\u500b\u5167\u7f6e\u51fd\u6578\uff0c\u7528\u65bc\u8fd4\u56de\u5c0d\u8c61\u7684\u5c6c\u6027\u5b57\u5178\u3002\u5b83\u53ef\u4ee5\u63a5\u53d7\u4efb\u4f55\u5c0d\u8c61\u985e\u578b\uff0c\u5305\u62ec\u6a21\u584a\u3001\u51fd\u6578\u3001\u985e\u4ee5\u53ca\u5be6\u4f8b\u7b49\u3002\u9019\u4e9b\u5c6c\u6027\u5b57\u5178\u5305\u542b\u4e86\u5c0d\u8c61\u7684\u6240\u6709\u5c6c\u6027\u53ca\u5176\u5c0d\u61c9\u7684\u503c\uff0c\u662f\u9032\u884c\u8abf\u8a66\u8207\u958b\u767c\u7684\u91cd\u8981\u5de5\u5177\u3002<\/p>\n<h2>vars() \u51fd\u6578\u7684\u4f7f\u7528<\/h2>\n<p>\u4f7f\u7528 `vars()` \u51fd\u6578\u975e\u5e38\u7c21\u55ae\u3002\u60a8\u53ea\u9700\u5c07\u5c0d\u8c61\u4f5c\u70ba\u53c3\u6578\u50b3\u905e\u7d66\u5b83\u5373\u53ef\u3002\u4e0b\u9762\u662f\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\uff1a<\/p>\n<p>**\u4f8b\u5b50 1\uff1a\u7372\u53d6\u5b57\u5178\u7684\u5c6c\u6027\u5b57\u5178**<\/p>\n<p>&#8220;`python<br \/>\nobj = {&#8216;name&#8217;: &#8216;John&#8217;, &#8216;age&#8217;: 20}<br \/>\nattrs = vars(obj)<br \/>\nprint(attrs)<br \/>\n&#8220;`<\/p>\n<p>\u8f38\u51fa\u7d50\u679c\uff1a<\/p>\n<p>&#8220;`python<br \/>\n{&#8216;name&#8217;: &#8216;John&#8217;, &#8216;age&#8217;: 20}<br \/>\n&#8220;`<\/p>\n<p>**\u4f8b\u5b50 2\uff1a\u7372\u53d6\u6a21\u584a\u7684\u5c6c\u6027\u5b57\u5178**<\/p>\n<p>&#8220;`python<br \/>\nimport math<br \/>\nattrs = vars(math)<br \/>\nprint(attrs)<br \/>\n&#8220;`<\/p>\n<p>\u8f38\u51fa\u7d50\u679c\u6703\u986f\u793a `math` \u6a21\u584a\u7684\u6240\u6709\u5c6c\u6027\u53ca\u5176\u503c\uff1a<\/p>\n<p>&#8220;`python<br \/>\n{&#8216;__name__&#8217;: &#8216;math&#8217;, &#8216;__doc__&#8217;: &#8216;This module is always available.  It provides access to the mathematical functions defined by the C standard.&#8217;, &#8230;}<br \/>\n&#8220;`<\/p>\n<p>\u9019\u4e9b\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 `vars()` \u51fd\u6578\u4f86\u6aa2\u67e5\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u5c0d\u65bc\u8abf\u8a66\u548c\u7406\u89e3\u5c0d\u8c61\u7684\u7d50\u69cb\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<h2>\u5e38\u898b\u932f\u8aa4\u6392\u9664<\/h2>\n<p>1. **TypeError**\uff1a\u5982\u679c\u60a8\u5617\u8a66\u5c0d\u4e0d\u652f\u6301\u5c6c\u6027\u5b57\u5178\u7684\u5c0d\u8c61\u4f7f\u7528 `vars()`\uff0c\u5c07\u6703\u5f15\u767c `TypeError`\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc `int` \u6216 `str` \u985e\u578b\u7684\u5c0d\u8c61\uff0c\u9019\u6a23\u7684\u4ee3\u78bc\u5c07\u6703\u5931\u6557\uff1a<br \/>\n   &#8220;`python<br \/>\n   num = 10<br \/>\n   attrs = vars(num)  # \u9019\u6703\u5f15\u767c TypeError<br \/>\n   &#8220;`<\/p>\n<p>2. **Attribute Error**\uff1a\u5982\u679c\u60a8\u5c0d\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u6a21\u584a\u6216\u5c0d\u8c61\u8abf\u7528 `vars()`\uff0c\u5c07\u6703\u5f15\u767c `AttributeError`\u3002\u78ba\u4fdd\u6a21\u584a\u5df2\u6b63\u78ba\u5c0e\u5165\u3002<\/p>\n<h2>\u5ef6\u4f38\u61c9\u7528<\/h2>\n<p>\u9664\u4e86\u6aa2\u67e5\u5c0d\u8c61\u7684\u5c6c\u6027\u5916\uff0c`vars()` \u51fd\u6578\u9084\u53ef\u4ee5\u8207\u5176\u4ed6 Python \u7279\u6027\u7d50\u5408\u4f7f\u7528\uff0c\u4f8b\u5982 `dataclasses`\u3002\u5728\u4f7f\u7528 `dataclasses` \u6642\uff0c\u60a8\u53ef\u4ee5\u5229\u7528 `vars()` \u4f86\u8f15\u9b06\u7372\u53d6\u6578\u64da\u985e\u7684\u5c6c\u6027\u3002<\/p>\n<p>&#8220;`python<br \/>\nfrom dataclasses import dataclass<\/p>\n<p>@dataclass<br \/>\nclass Person:<br \/>\n    name: str<br \/>\n    age: int<\/p>\n<p>person = Person(&#8220;Alice&#8221;, 30)<br \/>\nprint(vars(person))  # \u5c07\u8f38\u51fa {&#8216;name&#8217;: &#8216;Alice&#8217;, &#8216;age&#8217;: 30}<br \/>\n&#8220;`<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>`vars()` \u51fd\u6578\u662f Python \u4e2d\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u5de5\u5177\uff0c\u80fd\u8b93\u958b\u767c\u8005\u8f15\u9b06\u67e5\u770b\u5c0d\u8c61\u7684\u5c6c\u6027\u5b57\u5178\u3002\u7121\u8ad6\u662f\u5728\u8abf\u8a66\u9084\u662f\u958b\u767c\u65b0\u529f\u80fd\u6642\uff0c\u7406\u89e3\u4e26\u5584\u7528 `vars()` \u90fd\u662f\u63d0\u5347\u7de8\u7a0b\u6548\u7387\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a Python \u6559\u5b78\uff0c\u8acb\u53c3\u8003 [\u9019\u88e1](https:\/\/vocus.cc) \u7684\u76f8\u95dc\u6587\u7ae0\u3002<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<p>**Q1\uff1avars() \u51fd\u6578\u53ef\u4ee5\u7528\u65bc\u6240\u6709\u985e\u578b\u7684\u5c0d\u8c61\u55ce\uff1f**<br \/>\nA1\uff1a\u4e0d\u53ef\u4ee5\uff0c`vars()` \u51fd\u6578\u50c5\u9069\u7528\u65bc\u652f\u6301 `__dict__` \u5c6c\u6027\u7684\u5c0d\u8c61\u3002\u5c0d\u65bc\u57fa\u672c\u6578\u64da\u985e\u578b\u5982 `int` \u548c `str`\uff0c\u5247\u7121\u6cd5\u4f7f\u7528\u8a72\u51fd\u6578\u3002<\/p>\n<p>**Q2\uff1a\u5982\u4f55\u67e5\u8a62\u4e00\u500b\u6a21\u584a\u7684\u6240\u6709\u5c6c\u6027\uff1f**<br \/>\nA2\uff1a\u60a8\u53ef\u4ee5\u4f7f\u7528 `vars()` \u51fd\u6578\u914d\u5408\u6a21\u584a\u540d\u4f86\u7372\u53d6\u6240\u6709\u5c6c\u6027\uff0c\u4f8b\u5982 `vars(math)`\uff0c\u9019\u5c07\u8fd4\u56de `math` \u6a21\u584a\u7684\u5c6c\u6027\u5b57\u5178\u3002<\/p>\n<p>**Q3\uff1a\u4f7f\u7528 vars() \u6642\u6709\u4ec0\u9ebc\u6700\u4f73\u5be6\u8e10\u55ce\uff1f**<br \/>\nA3\uff1a\u5728\u4f7f\u7528 `vars()` \u6642\uff0c\u5efa\u8b70\u5148\u78ba\u8a8d\u5c0d\u8c61\u662f\u5426\u652f\u6301\u5c6c\u6027\u5b57\u5178\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u932f\u8aa4\u3002\u5982\u679c\u60a8\u4e0d\u78ba\u5b9a\u5c0d\u8c61\u7684\u985e\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 `isinstance()` \u9032\u884c\u6aa2\u67e5\u3002<\/p>\n<p>&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3Python\u4e2d\u7684vars()\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u8fd4\u56de\u5c0d\u8c61\u7684\u5c6c\u6027\u5b57\u5178\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u5c0d\u8c61\u7684\u5c6c\u6027\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39vars()\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5b83\u7684\u512a\u9ede\u548c\u7f3a\u9ede\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-2946","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-Lw","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2946","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=2946"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2946\/revisions"}],"predecessor-version":[{"id":2947,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2946\/revisions\/2947"}],"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=2946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}