{"id":6840,"date":"2021-11-01T22:00:27","date_gmt":"2021-11-01T14:00:27","guid":{"rendered":"https:\/\/vip.fxxkpython.com\/?p=6840"},"modified":"2021-11-01T22:00:29","modified_gmt":"2021-11-01T14:00:29","slug":"%e2%80%8bpython-%e8%bf%99%e5%87%a0%e4%b8%aa%e9%ad%94%e6%b3%95%e6%96%b9%e6%b3%95%ef%bc%8c%e6%9c%89%e7%82%b9%e4%b8%9c%e8%a5%bf%e5%95%8a","status":"publish","type":"post","link":"https:\/\/vip.fxxkpython.com\/?p=6840","title":{"rendered":"\u200bPython \u8fd9\u51e0\u4e2a\u9b54\u6cd5\u65b9\u6cd5\uff0c\u6709\u70b9\u4e1c\u897f\u554a"},"content":{"rendered":"\n

\u4f5c\u8005\uff1a\u5c0f\u5e05b\uff0c\u5fae\u4fe1\uff1axsb_pro<\/p>

\u672c\u6587\u9605\u8bfb\u9700\u7ea6 3 \u5206\u949f<\/p><\/blockquote>\n\n\n\n

\u200b\u4f60\u5728\u5199 Python \u4ee3\u7801\u7684\u65f6\u5019\uff0c\u5e94\u8be5\u65f6\u5e38\u4f1a\u770b\u5230\u4e00\u4e9b\u6bd4\u8f83\u7279\u6b8a\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u662f\u7528\u4e24\u6839\u6760\u6760\u4f5c\u4e3a\u5f00\u5934\u548c\u7ed3\u5c3e\u7684\uff0c\u6bd4\u5982\u4f60\u6700\u5e38\u89c1\u5230\u7684\u521d\u59cb\u5316\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5f53\u4f60\u53bb\u5b9e\u4f8b\u5316\u8fd9\u4e2a\u5bf9\u8c61\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a init \u65b9\u6cd5\u5c31\u7279\u4e48\u76f4\u63a5\u88ab\u6267\u884c\u4e86\u3002<\/p>\n\n\n\n

\u8fd9\u662f\u4e3a\u5565\u5462\uff1f\u5c31\u662f\u56e0\u4e3a\u5b83\u6709\u300c\u9b54\u6cd5\u300d\u3002<\/p>\n\n\n\n

\u4f60\u53ef\u4ee5\u4f7f\u7528 dir() \u5c06\u4f60\u7684\u5bf9\u8c61\u4f20\u8fdb\u53bb\u8c03\u7528\u4e00\u6ce2\uff0c\u4f60\u4f1a\u53d1\u73b0\u8fd9\u4e48\u4e00\u4e2a\u73b0\u8c61\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u770b\u5230\u6ca1\uff0c\u6211\u4eec\u5728\u5199\u7c7b\u7684\u65f6\u5019\uff0c\u5e76\u6ca1\u6709\u53bb\u5199\u8fd9\u4e9b\u65b9\u6cd5\u554a\uff0c\u4e3a\u4ec0\u4e48\u4f1a\u6709\u8fd9\u4e9b\u73a9\u610f\u554a\uff1f<\/p>\n\n\n\n

\u5176\u5b9e\u8fd9\u4e9b\u662f Python \u5df2\u7ecf\u5185\u7f6e\u597d\u4e86\u7684\u65b9\u6cd5\uff0c\u800c\u4e14\u90fd\u662f\u7528\u300c\u4e24\u6839\u6760\u6760\u300d\u4f5c\u4e3a\u5f00\u5934\u548c\u7ed3\u5c3e\u7684\uff0c\u8fd9\u6837\u80fd\u5f70\u663e\u51fa\u5b83\u4eec\u7684\u7279\u6b8a\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u4eec\u90fd\u5177\u6709\u300c\u9b54\u6cd5\u300d\u3002<\/p>\n\n\n\n

\u90a3\u4e48\u5b83\u4eec\u7684\u7279\u6b8a\u4e4b\u5904\u5728\u54ea\uff1f<\/p>\n\n\n\n

\u5176\u5b9e\u4f60\u4e00\u5f00\u59cb\u5c31\u5df2\u7ecf\u770b\u5230\u4e86\uff0c\u8fd9\u4e9b\u9b54\u6cd5\u65b9\u6cd5\u6211\u4eec\u538b\u6839\u4e0d\u9700\u8981\u81ea\u5df1\u53bb\u8c03\u7528\uff0cPython \u4f1a\u81ea\u52a8\u53bb\u8c03\u7528\u5b83\u4eec\u3002<\/strong><\/p>\n\n\n\n

\u6bd4\u5982\u6211\u4eec\u521a\u521a\u5199\u7684 init<\/strong> \u65b9\u6cd5\uff0c\u6211\u4eec\u53ea\u662f\u5b9e\u4f8b\u5316\u4e00\u4e0b\u5bf9\u8c61\uff0c\u5b83\u5c31\u81ea\u52a8\u6267\u884c\u4e86\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u6211\u4eec\u5e76\u6ca1\u6709 dog.__init__<\/strong>()\uff0c\u5bf9\u5417\uff1f<\/p>\n\n\n\n

\u5176\u5b9e\uff0c\u5b9e\u4f8b\u5316\u5bf9\u8c61\u6700\u5148\u6267\u884c\u7684\u4e0d\u662f init \u9b54\u6cd5\u65b9\u6cd5\uff0c\u8fd8\u6709\u4e00\u4e2a\u5728\u5b83\u524d\u9762\u6267\u884c\uff0c\u90a3\u5c31\u662f new<\/strong> \u8fd9\u4e2a\u9b54\u6cd5\u65b9\u6cd5\uff0c\u6bd4\u5982\u8fd9\u4e2a\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5f53\u4f60\u5b9e\u4f8b\u5316\u65f6\uff1adog = Dog(‘\u70ed\u72d7’)\uff0c\u8fd9\u65f6\u5019\u6267\u884c\u7ed3\u679c\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n\n\n\n

>>>\u6267\u884c\u4e86 cls \u65b9\u6cd5 <\/p>

>>>cls–<class’__main__.Dog’>, arg–\u70ed\u72d7 <\/p>

>>>\u6267\u884c\u4e86 init \u65b9\u6cd5<\/p><\/blockquote>\n\n\n\n

\u4e5f\u5c31\u662f\u8bf4\uff0c new \u8fd9\u4e2a\u9b54\u6cd5\u65b9\u6cd5\u5728\u7c7b\u88ab\u5b9e\u4f8b\u5316\u65f6\u4f1a\u88ab\u4f18\u5148\u81ea\u52a8\u8c03\u7528\uff0c\u5176\u4e2d\u7b2c\u4e00\u4e2a\u53c2\u6570\u53ef\u4ee5\u62ff\u5230\u5f53\u524d\u7c7b\uff0c\u7b2c\u4e8c\u4e2a\u53ef\u4ee5\u62ff\u5230\u6784\u9020\u5bf9\u8c61\u4f20\u6765\u7684\u53c2\u6570\u3002<\/p>\n\n\n\n

\u4e00\u822c\u5728 new \u65b9\u6cd5\u4e2d\u53ef\u4ee5\u751f\u6210\u65b0\u7684\u5b9e\u4f8b\uff0c\u5b83\u4f1a\u5c06\u53c2\u6570\u4f20\u7ed9\u5b9e\u4f8b\u7684 init \u65b9\u6cd5\u3002\u3002\u3002<\/p>\n\n\n\n

\u662f\u4e0d\u662f\u6709\u70b9\u61f5\u903c\uff1f<\/p>\n\n\n\n

\u6ca1\u5173\u7cfb\uff0c\u6211\u53ea\u662f\u4e3e\u4e2a\u4f8b\u5b50\u8ddf\u4f60\u8bf4\u9b54\u6cd5\u65b9\u6cd5\u662f\u4ec0\u4e48\uff0cnew<\/strong> \u8fd9\u4e2a\u9b54\u6cd5\u65b9\u6cd5\u57fa\u672c\u4e0a\u5f88\u5c11\u4f7f\u7528\u3002<\/p>\n\n\n\n

\u5173\u4e8e Python \u7684\u9b54\u6cd5\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5728\u8fd9\u91cc\u627e\u5230\uff1a<\/p>\n\n\n\n

https:\/\/docs.python.org\/3\/reference\/datamodel.html#special-method-names<\/p><\/blockquote>\n\n\n\n

\u6240\u4ee5\u6211\u4eec\u6bcf\u6b21\u5728\u5b9a\u4e49\u7c7b\u7684\u65f6\u5019\uff0c\u90fd\u4f1a\u5bf9\u5df2\u7ecf\u5185\u7f6e\u597d\u4e86\u7684\u9b54\u6cd5\u65b9\u6cd5\u8fdb\u884c\u300c\u91cd\u8f7d\u300d\uff0c\u8ba9\u9b54\u6cd5\u65b9\u6cd5\u6309\u6211\u4eec\u9700\u8981\u7684\u65b9\u5f0f\u53bb\u6267\u884c\u76f8\u5e94\u7684\u4e1c\u897f\uff0c\u5c31\u50cf\u4f60\u5f00\u5934\u770b\u5230\u7684\u90a3\u6837\uff0c\u6211\u4eec\u6700\u5e38\u91cd\u8f7d\u7684\u9b54\u6cd5\u65b9\u6cd5\u5c31\u662f init<\/strong> \u3002<\/p>\n\n\n\n

\u6bd4\u5982\u4f60\u60f3\u8981\u8ba9\u4e24\u4e2a\u72d7\u5bf9\u8c61\u4f7f\u7528 + \u64cd\u4f5c\u5c31\u53ef\u4ee5\u8fd4\u56de\u5b83\u4eec\u7684\u5e74\u9f84\u4e4b\u548c\uff0c\u90a3\u4e48\u4f60\u5c31\u53ef\u4ee5\u91cd\u8f7d\u8fd9\u4e2a + \u7684\u64cd\u4f5c\uff0c\u56e0\u4e3a + \u5bf9\u5e94\u7684\u9b54\u6cd5\u65b9\u6cd5\u662f add<\/strong>, \u6240\u4ee5\u4f60\u53ef\u4ee5\u8fd9\u6837\u91cd\u8f7d\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u540c\u6837\u7684\uff0c\u4f60\u60f3\u8981\u8ba9\u5bf9\u8c61\u505a\u4e00\u4e9b\u7279\u6b8a\u7684\u683c\u5f0f\u8f93\u51fa\uff0c\u90a3\u4e48\u4f60\u5c31\u53ef\u4ee5\u91cd\u8f7d str<\/strong> \u9b54\u6cd5\u65b9\u6cd5\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

OK, \u4eca\u5929\u60f3\u7ed9\u4f60\u5206\u4eab\u7684\u662f\u77e5\u9053\u4ec0\u4e48\u662f\u9b54\u6cd5\u65b9\u6cd5\u4ee5\u53ca\u5982\u4f55\u53bb\u4f7f\u7528\uff0c\u4ee5\u4e0a\u51e0\u4e2a\u662f\u6bd4\u8f83\u5e38\u7528\u7684\u9b54\u6cd5\u65b9\u6cd5\uff0c\u8fd8\u6709\u66f4\u591a\u7684\u9b54\u6cd5\u65b9\u6cd5\u8be6\u60c5\u4f60\u53ef\u4ee5\u770b\u770b\u6587\u4e2d\u6211\u7ed9\u4f60\u53d1\u7684\u6587\u6863\u94fe\u63a5\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff0c\u90a3\u4e48\u6211\u4eec\u4e0b\u56de\u89c1\uff0cpeace\uff01<\/p>\n\n\n\n

\u63a8\u8350\u9605\u8bfb\uff1a<\/strong><\/p>\n\n\n\n

Python\u5404\u79cd\u4e0b\u5212\u7ebf\u7684\u9a9a\u64cd\u4f5c<\/a><\/p>\n\n\n\n

\u4f60\u5e38\u770b\u5230\u7684 __init__.py \u662f\u5565<\/a>\uff1f<\/p>\n\n\n\n

\u656c\u8bf7\u5173\u6ce8\uff1a<\/strong>\u5c0f\u5e05b\u540c\u5b66<\/strong><\/p>\n\n\n\n

\u8d76\u7d27\u52a0\u5165\uff1a<\/strong><\/p>\n\n\n\n

\u6b22\u8fce\u52a0\u5165\u5c0f\u5e05b\u7684VIP(fxxkpython.com) \uff1a\u67e5\u770b\u5c0f\u5e05b\u7cbe\u5fc3\u5199\u7684\u52a0\u5bc6\u5e72\u8d27\u5185\u5bb9\uff01<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u4f5c\u8005\uff1a\u5c0f\u5e05b\uff0c\u5fae\u4fe1\uff1axsb_pro \u672c\u6587\u9605\u8bfb\u9700\u7ea6 3 \u5206\u949f \u200b\u4f60\u5728\u5199 Python \u4ee3\u7801\u7684\u65f6\u5019\uff0c\u5e94\u8be5\u65f6\u5e38\u4f1a\u770b\u5230\u4e00\u4e9b\u6bd4\u8f83\u7279\u6b8a\u7684\u51fd\u6570\uff0c\u5b83\u4eec\u662f\u7528\u4e24\u6839\u6760\u6760\u4f5c\u4e3a\u5f00\u5934\u548c\u7ed3\u5c3e\u7684\uff0c\u6bd4\u5982\u4f60\u6700\u5e38\u89c1\u5230\u7684\u521d\u59cb\u5316\u65b9\u6cd5\uff1a \u5f53\u4f60\u53bb\u5b9e\u4f8b\u5316\u8fd9\u4e2a\u5bf9\u8c61\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a init \u65b9…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[303],"tags":[],"_links":{"self":[{"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/posts\/6840"}],"collection":[{"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6840"}],"version-history":[{"count":1,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/posts\/6840\/revisions"}],"predecessor-version":[{"id":6847,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=\/wp\/v2\/posts\/6840\/revisions\/6847"}],"wp:attachment":[{"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vip.fxxkpython.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}