{"id":69297,"date":"2024-01-23T11:05:59","date_gmt":"2024-01-23T03:05:59","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=69297"},"modified":"2024-01-23T11:05:59","modified_gmt":"2024-01-23T03:05:59","slug":"python%e4%b8%ad__dict__%e7%9a%84%e4%bd%9c%e7%94%a8%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/69297.html","title":{"rendered":"python\u4e2d__dict__\u7684\u4f5c\u7528\u662f\u4ec0\u4e48"},"content":{"rendered":"

\u5728Python\u4e2d\uff0c__dict__<\/strong>\u662f\u4e00\u4e2a\u5b9e\u4f8b\u5c5e\u6027\uff0c\u5305\u542b\u4e86\u8be5\u5b9e\u4f8b\u5bf9\u8c61\u7684\u6240\u6709\u5c5e\u6027\uff08\u5305\u62ec\u5176\u7c7b\u7684\u5c5e\u6027\uff09\u548c\u5bf9\u5e94\u7684\u503c\uff0c\u5b9e\u8d28\u4e0a\u662f\u4e00\u4e2a\u5b57\u5178\u3002\u8fd9\u4e2a\u7279\u6027\u4e0d\u4ec5\u8ba9\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u67e5\u8be2\u3001\u4fee\u6539\u3001\u5220\u9664\u5bf9\u8c61\u7684\u5c5e\u6027\uff0c\u8fd8\u80fd\u7528\u6765\u5b58\u50a8\u5bf9\u8c61\u7684\u53ef\u53d8\u72b6\u6001\u3002<\/p>\n

\u8be6\u7ec6\u89e3\u8bf4\uff0c\u5f53\u8bf7\u6c42\u7279\u5b9a\u5c5e\u6027\u65f6\uff0cPython\u4f1a\u9996\u5148\u5728__dict__\u5b57\u5178\u4e2d\u5bfb\u627e\u3002\u5047\u5982\u5728\u8fd9\u4e2a\u5b57\u5178\u5185\u627e\u5230\u4e86\u5c5e\u6027\u540d\u79f0\u5bf9\u5e94\u7684\u952e\uff0c\u90a3\u4e48\u4f1a\u76f4\u63a5\u8fd4\u56de\u952e\u5bf9\u5e94\u7684\u503c\u3002\u8fd9\u4e00\u884c\u4e3a\u4f53\u73b0\u4e86Python\u7684\u52a8\u6001\u6027\u8d28\uff0c\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u5730\u6539\u53d8\u5bf9\u8c61\u7684\u72b6\u6001\u3002<\/p>\n

\u4e00\u3001PYTHON\u5bf9\u8c61\u5c5e\u6027\u7684\u5b58\u50a8\u65b9\u5f0f<\/strong><\/p>\n

\u5bf9\u4e8ePython\u7684\u6bcf\u4e00\u4e2a\u5bf9\u8c61\uff0c\u5176\u5c5e\u6027\u90fd\u53ef\u4ee5\u901a\u8fc7\u5bf9\u5e94\u7684__dict__\u6765\u5b58\u50a8\u548c\u8bbf\u95ee\u3002\u4f8b\u5982\uff0c\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7c7b\u5b9e\u4f8b\u540e\uff0c\u901a\u8fc7\u5b9e\u4f8b\u7684__dict__\u53ef\u4ee5\u83b7\u53d6\u5176\u6240\u6709\u5c5e\u6027\u7684\u5b57\u5178\u8868\u793a\u3002<\/p>\n

“`<\/p>\n

class MyObject:<\/p>\n

def __init__(self, attr1, attr2):<\/p>\n

self.attr1 = attr1<\/p>\n

self.attr2 = attr2<\/p>\n

obj = MyObject(10, 20)<\/p>\n

print(obj.__dict__)<\/p>\n

“`<\/p>\n

\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u8f93\u51fa\u7ed3\u679c\u4f1a\u662f{‘attr1’: 10, ‘attr2’: 20}\uff0c\u8fd9\u5c31\u5c55\u73b0\u4e86__dict__\u7684\u57fa\u672c\u529f\u80fd\u3002<\/p>\n

\u4e8c\u3001\u901a\u8fc7__DICT__\u4fee\u6539\u548c\u8bbf\u95ee\u5c5e\u6027<\/strong><\/p>\n

__dict__\u7684\u53e6\u4e00\u5927\u4f5c\u7528\u662f\u53ef\u4ee5\u7528\u6765\u4fee\u6539\u548c\u8bbf\u95ee\u5bf9\u8c61\u5c5e\u6027\u3002\u901a\u8fc7\u5b57\u5178\u7684\u65b9\u6cd5\u6765\u5bf9\u5bf9\u8c61\u7684\u72b6\u6001\u8fdb\u884c\u66f4\u65b0\u662f\u4e00\u4e2a\u975e\u5e38\u76f4\u63a5\u7684\u624b\u6bb5\u3002<\/p>\n

“`<\/p>\n

obj.__dict__[‘attr1’] = 100<\/p>\n

print(obj.attr1) # \u8f93\u51fa\u7ed3\u679c\u4e3a100<\/p>\n

“`<\/p>\n

\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u76f4\u63a5\u5bf9obj\u5bf9\u8c61\u7684attr1\u5c5e\u6027\u8fdb\u884c\u4e86\u4fee\u6539\u3002<\/p>\n

\u4e09\u3001\u7c7b\u548c\u5b9e\u4f8b\u7684__DICT__<\/strong><\/p>\n

\u4e0d\u4ec5\u5b9e\u4f8b\u6709__dict__\u5c5e\u6027\uff0cPython\u4e2d\u7684\u7c7b\u4e5f\u540c\u6837\u62e5\u6709__dict__\u5c5e\u6027\u3002\u901a\u8fc7\u7c7b\u7684__dict__\uff0c\u53ef\u4ee5\u67e5\u770b\u7c7b\u4e2d\u6240\u6709\u7684\u7c7b\u5c5e\u6027\uff0c\u800c\u8fd9\u4e9b\u5c5e\u6027\u5728\u6240\u6709\u5b9e\u4f8b\u4e2d\u901a\u5e38\u662f\u5171\u4eab\u7684\u3002<\/p>\n

\u56db\u3001__DICT__\u4e0e\u5c5e\u6027\u67e5\u627e<\/strong><\/p>\n

\u5f53\u8bbf\u95ee\u67d0\u4e2a\u5c5e\u6027\u65f6\uff0cPython\u4f1a\u9996\u5148\u5728\u5b9e\u4f8b\u7684__dict__\u4e2d\u67e5\u627e\uff1b\u5982\u679c\u6ca1\u6709\u627e\u5230\uff0c\u63a5\u7740\u4f1a\u5728\u7c7b\u7684__dict__\u4e2d\u67e5\u627e\uff0c\u6700\u540e\u624d\u662f\u6cbf\u7740\u57fa\u7c7b\u7684\u5c42\u6b21\u5411\u4e0a\u67e5\u627e\u3002<\/p>\n

\u4e94\u3001\u6027\u80fd\u8003\u91cf<\/strong><\/p>\n

\u4f7f\u7528__dict__\u5c5e\u6027\u53ef\u63d0\u4f9b\u5f88\u591a\u4fbf\u6377\u7684\u64cd\u4f5c\uff0c\u4f46\u662f\u4f7f\u7528\u4e0d\u5f53\u4e5f\u53ef\u80fd\u5bfc\u81f4\u610f\u5916\u7684\u95ee\u9898\u3002\u4f8b\u5982\uff0c\u76f4\u63a5\u4fee\u6539__dict__\u53ef\u80fd\u4f1a\u7ed5\u8fc7\u5c5e\u6027\u8bbe\u7f6e\u65f6\u7684\u4e00\u4e9b\u7279\u6b8a\u903b\u8f91\uff0c\u6bd4\u5982@property\u88c5\u9970\u5668\u5b9a\u4e49\u7684\u5c5e\u6027\u3002<\/p>\n

\u603b\u4f53\u800c\u8a00\uff0c__dict__\u5728Python\u4e2d\u62c5\u8d27\u884c\u4f7f\u5173\u952e\u4f5c\u7528\uff0c\u662f\u5bf9\u8c61\u5c5e\u6027\u7ba1\u7406\u7684\u6838\u5fc3\u3002\u901a\u8fc7\u5b83\uff0c\u6211\u4eec\u80fd\u66f4\u597d\u5730\u7406\u89e3Python\u4e2d\u5c5e\u6027\u7684\u52a8\u6001\u5b58\u50a8\u65b9\u5f0f\u548c\u8bbf\u95ee\u673a\u5236\uff0c\u8fd9\u5bf9\u4e8e\u6df1\u5165\u5b66\u4e60Python\u8bed\u8a00\u7279\u6027\u548c\u4f18\u5316\u5bf9\u8c61\u6a21\u578b\u8bbe\u8ba1\u90fd\u6709\u7740\u91cd\u8981\u4ef7\u503c\u3002<\/p>\n

\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong>Python\u4e2d__dict__\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n

__dict__\u662fPython\u4e2d\u6bcf\u4e2a\u7c7b\u5b9e\u4f8b\u7684\u4e00\u4e2a\u7279\u6b8a\u5c5e\u6027\uff0c\u5b83\u662f\u4e00\u4e2a\u5b57\u5178\uff0c\u7528\u4e8e\u5b58\u50a8\u5b9e\u4f8b\u7684\u6240\u6709\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n

__dict__\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff1f<\/strong><\/p>\n

__dict__\u5c5e\u6027\u5141\u8bb8\u6211\u4eec\u52a8\u6001\u5730\u5411\u5b9e\u4f8b\u6dfb\u52a0\u65b0\u5c5e\u6027\uff0c\u4e5f\u53ef\u4ee5\u67e5\u770b\u5f53\u524d\u5b9e\u4f8b\u7684\u6240\u6709\u5c5e\u6027\u3002\u8fd9\u4f7f\u5f97Python\u7684\u5bf9\u8c61\u5177\u6709\u975e\u5e38\u5f3a\u5927\u7684\u7075\u6d3b\u6027\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528__dict__\u5c5e\u6027\uff1f<\/strong><\/p>\n

\u901a\u8fc7\u76f4\u63a5\u8bbf\u95ee__dict__\u5c5e\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u52a8\u6001\u5730\u5411\u5b9e\u4f8b\u6dfb\u52a0\u5c5e\u6027\u6216\u8005\u4fee\u6539\u5c5e\u6027\u7684\u503c\u3002\u6211\u4eec\u4e5f\u53ef\u4ee5\u901a\u8fc7\u904d\u5386__dict__\u7684\u952e\u503c\u5bf9\u6765\u67e5\u770b\u5b9e\u4f8b\u7684\u6240\u6709\u5c5e\u6027\u3002\u4f46\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6ee5\u7528__dict__\u53ef\u80fd\u4f1a\u5bfc\u81f4\u4ee3\u7801\u53d8\u5f97\u96be\u4ee5\u7ef4\u62a4\u548c\u7406\u89e3\uff0c\u56e0\u6b64\u9700\u8981\u8c28\u614e\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c__dict__\u662f\u4e00\u4e2a\u5b9e\u4f8b\u5c5e\u6027\uff0c\u5305\u542b\u4e86\u8be5\u5b9e\u4f8b\u5bf9\u8c61\u7684\u6240\u6709\u5c5e\u6027\uff08\u5305\u62ec\u5176\u7c7b\u7684\u5c5e\u6027\uff09\u548c\u5bf9\u5e94\u7684\u503c\uff0c\u5b9e\u8d28 […]","protected":false},"author":1,"featured_media":69298,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/69297"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=69297"}],"version-history":[{"count":0,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/69297\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/69298"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=69297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=69297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=69297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}