{"id":322,"date":"2018-10-11T22:00:36","date_gmt":"2018-10-11T14:00:36","guid":{"rendered":"http:\/\/develop-note.com\/blog\/?p=322"},"modified":"2022-02-16T22:18:14","modified_gmt":"2022-02-16T14:18:14","slug":"2019ironman-flask-restful-day10","status":"publish","type":"post","link":"https:\/\/www.develop-note.com\/blog\/2018\/10\/11\/2019ironman-flask-restful-day10\/","title":{"rendered":"\u7b2c\u5341\u5c46\u9435\u4eba\u8cfd flask-restful DAY10-\u641e\u61c2Python\u88dd\u98fe\u5668\u7684\u9032\u968e\u5167\u5bb9"},"content":{"rendered":"

\u88dd\u98fe\u5668\u9032\u968e\u8ab2\u7a0b<\/h1>\n

\u5728\u4e0a\u4e00\u7ae0\u7684\u8ab2\u7a0b\u4ecb\u7d39\u4e86\u88dd\u98fe\u5668\u7684\u57fa\u672c\u8a9e\u6cd5\u8207\u61c9\u7528\uff0c\u9084\u6709\u4ecb\u7d39\u975e\u7279\u5b9a\u53c3\u6578\u7684\u50b3\u5165\u65b9\u5f0f\u4ee5\u53ca@<\/code><\/code>\u8a9e\u6cd5\u7cd6\u7684\u6982\u5ff5\uff0c\u63a5\u4e0b\u4f86\u8981\u4ecb\u7d39\u4e00\u4e9b\u9032\u968e\u7684\u5167\u5bb9\u3002<\/p>\n

\u975c\u614b\u65b9\u6cd5\u3001\u985e\u5225\u65b9\u6cd5<\/h1>\n

\u5728\u4ecb\u7d39\u5b8c@<\/code>`\u8a9e\u6cd5\u7cd6\u4ee5\u53ca\u985e\u5225\u5f8c\u5c31\u53ef\u4ee5\u9032\u4e00\u6b65\u4ecb\u7d39<\/code>`@staticmethod<\/code>`\u8207<\/code>`@classmethod<\/code>`\uff0c\u5176\u5be6\u770b\u5230<\/code>`@<\/code><\/code>\u8b80\u8005\u5011\u5c31\u77e5\u9053\u770b\u5230\u88dd\u98fe\u5668\u4e86\uff0c\u81f3\u65bc\u9019\u5169\u500b\u88dd\u98fe\u5668\u6709\u4f55\u4f5c\u7528\u5462?<\/p>\n

@staticmethod<\/h2>\n

\u9019\u662f\u975c\u614b\u51fd\u5f0f\u7684\u88dd\u98fe\u5668\uff0c\u7576\u6709\u4e9b\u985e\u5225\u7684\u65b9\u6cd5\u60f3\u8981\u76f4\u63a5\u4f7f\u7528\u6642\u6703\u9047\u5230\u4e00\u500b\u7a98\u5883\uff0c\u9084\u8a18\u5f97\u985e\u5225\u65b9\u6cd5\u662f\u5ba3\u544a\u7684\u55ce\uff0c\u770b\u770b\u4e0b\u5217\u5f0f\u5b50\u5427\uff1a<\/p>\n

class ObjectA:\n    def func(self, *args, **kwargs):\n        print('do some thing')<\/code><\/pre>\n
\u597d\u4e86\u554f\u984c\u4f86\u4e86\uff0c\u5927\u5bb6\u9084\u8a18\u5f97\u985e\u5225\u65b9\u6cd5\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u751a\u9ebc\u55ce?\u90a3\u5c31\u662f\u985e\u5225\u7684\u5be6\u9ad4\u672c\u8eab\uff0c\u56e0\u6b64\u8981\u4f7f\u7528\u6b64\u985e\u5225\u7684\u65b9\u6cd5\u5be6\u969b\u5c31\u8981\u4f9d\u7167\u4e0b\u5217\u5f0f\u5b50\u7684\u65b9\u5f0f\u4f86\u4f7f\u7528\uff1a<\/p>\n
var = ObjectA()\nvar.func()<\/code><\/pre>\n
\u4e0d\u904e\u8b80\u8005\u6703\u554f\u8aaa\uff0c\u6211\u50c5\u662f\u8981\u4f7f\u7528\u8a72\u65b9\u6cd5\uff0c\u70ba\u4ec0\u9ebc\u8981\u7522\u751f\u8a72\u7269\u4ef6\u7684\u5be6\u9ad4\u5462?\u9019\u6642\u5019@staticmethod<\/code><\/code>\u5c31\u9700\u8981\u51fa\u99ac\u4e86\uff0c\u6700\u4e0a\u9762\u985e\u5225\u7684\u5ba3\u544a\u8981\u6539\u6210\u4ee5\u4e0b\u65b9\u5f0f\uff1a<\/p>\n
class ObjectA:\n    @staticmethod\n    def func(*args, **kwargs):\n        print('do some thing')<\/code><\/pre>\n
\u5982\u6b64\u8981\u4f7f\u7528\u8a72\u975c\u614b\u65b9\u6cd5\u5c31\u4e0d\u9700\u8981\u7522\u751f\u985e\u5225\u7684\u5be6\u9ad4\u4e86\u3002<\/p>\n
@classmethod<\/h2>\n
\u76f8\u8f03\u65bc\u975c\u614b\u65b9\u65b9\u6cd5\uff0c\u9084\u6709\u53e6\u5916\u4e00\u7a2e\u88dd\u98fe\u5668\u5c31\u662f\u985e\u5225\u65b9\u6cd5@classmethod<\/code><\/code>\uff0c\u76f8\u5c0d\u65bc\u975c\u614b\u65b9\u6cd5\u7684\u88dd\u98fe\u5668\u53ef\u4ee5\u4f7f\u985e\u5225\u65b9\u6cd5\u4e0d\u9700\u8981\u7d81\u5b9a\u5728\u7269\u4ef6\u5be6\u9ad4\u672c\u8eab\u4e0a\uff0c\u985e\u5225\u65b9\u6cd5\u88dd\u98fe\u5668\u5247\u662f\u5c07\u985e\u5225\u65b9\u6cd5\u5f37\u5236\u7d66\u4e88\u4e00\u500b\u985e\u5225\u5be6\u9ad4\uff0c\u8acb\u5404\u4f4d\u5148\u770b\u770b\u4ee5\u4e0b\u5ba3\u544a\u7684\u65b9\u5f0f\uff1a<\/p>\n
class ObjectB:\n    @classmethod\n    def func(cls, *args, **kwargs):\n        print('do some thing')<\/code><\/pre>\n
\u96d6\u7136\u89c0\u5ff5\u4e0d\u592a\u4e00\u6a23\uff0c\u4f46\u662f\u985e\u5225\u65b9\u6cd5\u7684\u4f7f\u7528\u65b9\u5f0f\u8207\u975c\u614b\u65b9\u6cd5\u4e00\u6a23\uff0c\u5c31\u662f\u900f\u904e\u985e\u5225\u540d\u7a31.\u985e\u5225\u65b9\u6cd5\u7684\u65b9\u5f0f\u76f4\u63a5\u4f7f\u7528\uff0c\u7121\u9808\u7522\u751f\u985e\u5225\u5be6\u9ad4\u3002<\/p>\n
\u5169\u8005\u5dee\u7570<\/h2>\n
\u540c\u6642\u8b1b\u4e86\u975c\u614b\u65b9\u6cd5\u8207\u985e\u5225\u65b9\u6cd5\uff0c\u8b80\u8005\u61c9\u8a72\u6703\u641e\u6df7\uff0c\u9019\u5169\u500b\u88dd\u98fe\u5668\u7528\u4e0b\u53bb\u8a72\u65b9\u6cd5\u90fd\u4e0d\u9700\u8981\u7d81\u5b9a\u7269\u4ef6\u7684\u5be6\u9ad4\uff0c\u90a3\u9019\u5169\u500b\u88dd\u98fe\u5668\u5dee\u5225\u5728\u54ea\u88e1\uff0c\u751a\u9ebc\u6642\u5019\u8981\u7528\u54ea\u4e00\u500b\u5462?\u9019\u6642\u5019\u628a\u5169\u500b\u5ba3\u544a\u65b9\u5f0f\u64fa\u518d\u4e00\u8d77\u770b\u4e00\u770b\uff1a<\/p>\n
# \u975c\u614b\u65b9\u6cd5\n    @staticmethod\n    def func(*args, **kwargs):\n# \u985e\u5225\u65b9\u6cd5\n    @classmethod\n    def func(cls, *args, **kwargs):<\/code><\/pre>\n
\u5176\u5be6\u7b54\u6848\u5c31\u5728\u65b9\u6cd5\u7684\u5ba3\u544a\u4e0a\uff0c\u975c\u614b\u65b9\u6cd5\u88dd\u98fe\u5668\u4e0a\u6c92\u6709\u7d66\u4e88\u985e\u5225\u7684\u5be6\u9ad4\uff0c\u800c\u985e\u5225\u65b9\u6cd5\u88dd\u98fe\u5668\u7b2c\u4e00\u500b\u53c3\u6578\u5c31\u662f\u7d81\u8a02\u5728\u4e00\u500b\u985e\u5225\u7269\u4ef6\u7684\u5be6\u9ad4cls<\/code><\/code>\uff0c\u9019\u6642\u5019\u4e0d\u7ba1\u7522\u751f\u591a\u5c11\u985e\u5225\u7269\u4ef6\u7684\u5be6\u9ad4\uff0c\u4ed6\u6240\u7528\u5230\u7684\u985e\u5225\u65b9\u6cd5\u6240\u7d81\u5b9a\u7684\u985e\u5225\u7269\u4ef6\u5be6\u9ad4\u90fd\u6703\u662f\u540c\u4e00\u500b\uff0c\u6240\u4ee5\u8aaa\u9700\u8981\u7528\u5230\u4e00\u500b\u5171\u7528\u7684\u985e\u5225\u7269\u4ef6\u7684\u5be6\u9ad4\u6642\u5c31\u9700\u8981\u4f7f\u7528\u985e\u5225\u65b9\u6cd5\u3002<\/p>\n
\u985e\u5225\u88dd\u98fe\u5668<\/h1>\n
\u88dd\u98fe\u5668\u4e0d\u50c5\u53ef\u4ee5\u4ee5\u65b9\u6cd5\u7684\u65b9\u5f0f\u4f86\u5275\u5efa\uff0c\u4ea6\u53ef\u4ee5\u4ee5\u985e\u5225\u7684\u65b9\u5f0f\u4f86\u5275\u5efa\uff0c\u8acb\u5927\u5bb6\u770b\u770b\u4e0b\u5217\u4f8b\u5b50\uff1a<\/p>\n
import types\n\nclass ClassDecorator:\n    def __init__(self, func):\n        self.numberOfCalls = 0\n        self.func = func\n\n    def __call__(self, *args, **kwargs):\n        self.numberOfCalls += 1\n        return self.func(*args, **kwargs)\n\n    def __get__(self, instance, cls):\n        if instance is None:\n            return self\n        else:\n            return types.MethodType(self, instance)<\/code><\/pre>\n
\u4ee5\u4e0a\u4f8b\u5b50\u5c31\u662f\u5982\u4f55\u5275\u5efa\u4e00\u500b\u5217\u5225\u88dd\u98fe\u5668\uff0c\u773c\u5c16\u7684\u8b80\u8005\u770b\u5230\u5169\u500b\u65b0\u7684\u95dc\u9375\u5b57__call__<\/code>`\u8207<\/code>`__get__<\/code><\/code>\uff0c\u5728\u89e3\u91cb\u9019\u5169\u500b\u95dc\u9375\u5b57\u4e4b\u524d\u5148\u770b\u770b\u985e\u5225\u88dd\u98fe\u5668\u5982\u4f55\u4f7f\u7528\uff1a<\/p>\n
@ClassDecorator\ndef add(x, y):\n    return x + y\n\nclass Decorated:\n    @ClassDecorator\n    def bar(self, x):\n        print(self, x)\n\nprint(add(2, 3))\nprint(add(4, 5))\nprint(add.numberOfCalls)\ns = Decorated()\ns.bar(1)\ns.bar(2)\ns.bar(3)\nprint(Decorated.bar.numberOfCalls)<\/code><\/pre>\n
\u7531\u4f8b\u5b50\u53ef\u4ee5\u770b\u5230__call__<\/code>`\u662f\u5b9a\u7fa9\u7576\u8a72\u65b9\u6cd5\u88ab\u547c\u53eb\u5230\u6642\u7684\u8655\u7f6e\u65b9\u5f0f\uff0c\u90a3\u8a31\u591a\u8b80\u8005\u5c31\u6703\u554f\u8aaa<\/code>`__get__<\/code>`\u662f\u505a\u751a\u9ebc\u7528\u7684\u5462\uff0c\u4ed6\u662f\u6709\u5fc5\u8981\u5b58\u5728\u7684\u55ce\u3002\u9019\u6642\u8b80\u8005\u5011\u53ef\u4ee5\u81ea\u884c\u628a<\/code>`__get__<\/code><\/code>\u53bb\u9664\u6389\u662f\u662f\u770b\uff0c\u76f8\u4fe1\u6c92\u4e86\u9019\u6771\u897f\u61c9\u8a72\u6703\u770b\u8abf\u4e0b\u5217\u932f\u8aa4\u8a0a\u606f\uff1a<\/p>\n
TypeError: bar() missing 1 required positional argument: 'x'<\/code><\/pre>\n
\u7531\u6b64\u53ef\u77e5__get__<\/code>`\u65b9\u6cd5\u662f\u4e3a\u4e86\u78ba\u4fdd\u7d81\u5b9a\u65b9\u6cd5\u5c0d\u8c61\u80fd\u88ab\u6b63\u78ba\u7684\u5275\u5efa\u3002\u4e0d\u904e\u82e5\u662f<\/code>`@ClassDecorator<\/code>`\u50c5\u4f7f\u7528\u65bc\u65b9\u6cd5\u4e0a\u5247<\/code>`__get__<\/code>`\u53ef\u6709\u53ef\u7121\uff0c\u4e0d\u904e\u82e5\u662f\u8981\u4f7f\u7528\u5728\u985e\u5225\u7684\u65b9\u6cd5\u4e0a\uff0c\u5247<\/code>`__get__<\/code><\/code>\u5c31\u4e00\u5b9a\u9700\u8981\u5be6\u4f5c\u4e86\u3002\u95dc\u65bc\u9019\u90e8\u5206\u7684\u77e5\u8b58\u6709\u8208\u8da3\u7684\u8b80\u8005\u53ef\u4ee5\u53c3\u8003python3-cookbook->9.9 \u5c06\u88c5\u9970\u5668\u5b9a\u4e49\u4e3a\u7c7b<\/a>\u3002<\/p>\n
\u591a\u88dd\u98fe\u5e7e\u5c64<\/h1>\n
\u5728\u7406\u89e3@<\/code><\/code>\u8a9e\u6cd5\u7cd6\u5f8c\u76f8\u4fe1\u4e0b\u5217\u5f0f\u5b50\u61c9\u8a72\u4e0d\u96e3\u7406\u89e3\uff1a<\/p>\n
@a\n@b\n@c\ndef d():\n    pass<\/code><\/pre>\n
\u4e0d\u77e5\u9053\u6240\u6709\u7684\u8b80\u8005\u662f\u5426\u6709\u7b54\u6848\u4e86\u5462\uff0c\u5982\u679c\u6c92\u6709\u7b54\u6848\u7684\u8a71\u53ef\u4ee5\u770b\u770b\u4e0b\u5217\u66f4\u9032\u4e00\u6b65\u7684\u89e3\u91cb\uff1a<\/p>\n
d = a(b(c(d)))<\/code><\/pre>\n
\u5176\u5be6\u6700\u524d\u9762\u7684\u5f0f\u5b50\u8207\u4e0a\u8ff0\u5f0f\u5b50\u5f0f\u7b49\u50f9\u7684\uff0c\u6240\u4ee5\u7531\u6b64\u53ef\u77e5\u591a\u88dd\u5e7e\u5c64\u88dd\u98fe\u5668\u5b83\u662f\u7531\u4e0a\u800c\u4e0b\u7684\u5305\u88dd\u8d77\u4f86\u7684\uff0c\u6240\u4ee5\u57f7\u884c\u6642\u6703\u7531\u4e0a\u800c\u4e0b\u7684\u57f7\u884c\u5b8c\u88dd\u98fe\u5668\u5f8c\u518d\u57f7\u884c\u65b9\u6cd5\u672c\u8eab\u3002<\/p>\n
\u5c0f\u7d50<\/h1>\n
\u597d\u4e86\uff0c\u88dd\u98fe\u5668\u7684\u9032\u968e\u5167\u5bb9\u8aaa\u660e\u5b8c\u4e86\uff0c\u63a5\u4e0b\u4f86\u8981\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528\u5225\u4eba\u5beb\u7684\u51fd\u5f0f\u5eab\u4ee5\u53ca\u5982\u4f55\u81ea\u5df1\u64b0\u5beb\u51fd\u5f0f\u5eab\uff0c\u656c\u8acb\u671f\u5f85\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u88dd\u98fe\u5668\u9032\u968e\u8ab2\u7a0b \u5728\u4e0a\u4e00\u7ae0\u7684\u8ab2\u7a0b\u4ecb\u7d39\u4e86\u88dd\u98fe\u5668\u7684\u57fa\u672c\u8a9e\u6cd5\u8207\u61c9\u7528\uff0c\u9084\u6709\u4ecb\u7d39\u975e\u7279\u5b9a\u53c3\u6578\u7684\u50b3\u5165\u65b9\u5f0f\u4ee5\u53ca@\u8a9e\u6cd5\u7cd6\u7684\u6982\u5ff5\uff0c\u63a5 … <\/p>\n
\u95b1\u8b80\u5168\u6587\u3008\u7b2c\u5341\u5c46\u9435\u4eba\u8cfd flask-restful DAY10-\u641e\u61c2Python\u88dd\u98fe\u5668\u7684\u9032\u968e\u5167\u5bb9\u3009<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[2],"tags":[162,4,5,3],"class_list":["post-322","post","type-post","status-publish","format-standard","hentry","category-develop","tag-2018ironman","tag-flask","tag-flask-restful","tag-python"],"_links":{"self":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/comments?post=322"}],"version-history":[{"count":11,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/322\/revisions"}],"predecessor-version":[{"id":2759,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/322\/revisions\/2759"}],"wp:attachment":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/media?parent=322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/categories?post=322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/tags?post=322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}