{"id":3450,"date":"2025-05-30T15:41:29","date_gmt":"2025-06-04T07:43:28","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3450"},"modified":"2025-06-04T15:41:29","modified_gmt":"2025-06-04T07:43:28","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84getnewargs%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%84getnewargs%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 getnewargs() \u51fd\u6578\uff1a\u7528\u6cd5\u3001\u7bc4\u4f8b\u8207\u6700\u4f73\u5be6\u8e10\uff082025 \u6700\u65b0\u7248\uff09"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 getnewargs() \u51fd\u6578<\/h1>\n

Python \u662f\u4e00\u7a2e\u6d41\u884c\u4e14\u529f\u80fd\u5f37\u5927\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u5b83\u63d0\u4f9b\u4e86\u8a31\u591a\u5be6\u7528\u7684\u5167\u5efa\u51fd\u6578\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f `getnewargs()` \u51fd\u6578\u3002\u9019\u500b\u51fd\u6578\u4e3b\u8981\u7528\u65bc\u5f9e\u7269\u4ef6\u4e2d\u7372\u53d6\u53c3\u6578\uff0c\u4e26\u5c07\u5b83\u5011\u8f49\u63db\u70ba\u65b0\u7684\u53c3\u6578\u683c\u5f0f\uff0c\u4ee5\u4fbf\u5728\u5176\u4ed6\u51fd\u6578\u4e2d\u4f7f\u7528\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39 `getnewargs()` \u7684\u529f\u80fd\u3001\u4f7f\u7528\u65b9\u6cd5\u3001\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u932f\u8aa4\u6392\u9664\u6280\u5de7\uff0c\u5e6b\u52a9\u4f60\u5728 2025 \u5e74\u7684 Python \u958b\u767c\u4e2d\u638c\u63e1\u9019\u500b\u51fd\u6578\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

getnewargs() \u51fd\u6578\u7684\u529f\u80fd<\/h2>\n

`getnewargs()` \u51fd\u6578\u7684\u4e3b\u8981\u529f\u80fd\u662f\u7372\u53d6\u7269\u4ef6\u7684\u53c3\u6578\u4e26\u5c07\u5176\u8f49\u63db\u70ba\u9069\u5408\u50b3\u905e\u7d66\u5176\u4ed6\u51fd\u6578\u7684\u65b0\u53c3\u6578\u3002\u9019\u5728\u9700\u8981\u5c0d\u7269\u4ef6\u9032\u884c\u5e8f\u5217\u5316\u6216\u91cd\u65b0\u69cb\u5efa\u6642\u7279\u5225\u6709\u7528\u3002\u5b83\u901a\u5e38\u8207\u81ea\u8a02\u7269\u4ef6\u548c\u5e8f\u5217\u5316\u6709\u95dc\u3002<\/p>\n

getnewargs() \u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5<\/h2>\n

\u4f7f\u7528 `getnewargs()` \u51fd\u6578\u7684\u65b9\u6cd5\u76f8\u5c0d\u76f4\u63a5\u3002\u4f60\u53ea\u9700\u5c07\u7269\u4ef6\u4f5c\u70ba\u53c3\u6578\u50b3\u5165\u51fd\u6578\uff0c\u7136\u5f8c\u7372\u53d6\u8f49\u63db\u5f8c\u7684\u65b0\u53c3\u6578\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nimport pickle<\/p>\n

class MyClass:
\n def __init__(self, x, y):
\n self.x = x
\n self.y = y<\/p>\n

def __getnewargs__(self):
\n return (self.x, self.y)<\/p>\n

def my_function(obj):
\n new_args = obj.__getnewargs__() # \u4f7f\u7528 getnewargs() \u65b9\u6cd5
\n print(f”\u65b0\u7372\u53d6\u7684\u53c3\u6578\uff1a{new_args}”)
\n # do something with new_args<\/p>\n

# \u5be6\u4f5c\u7bc4\u4f8b
\nmy_obj = MyClass(10, 20)
\nmy_function(my_obj)
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba `MyClass` \u7684\u985e\u5225\uff0c\u4e26\u5be6\u4f5c\u4e86 `__getnewargs__` \u65b9\u6cd5\u3002\u7576\u6211\u5011\u547c\u53eb `my_function` \u4e26\u50b3\u5165 `my_obj` \u6642\uff0c\u51fd\u6578\u6703\u6253\u5370\u51fa\u65b0\u7372\u53d6\u7684\u53c3\u6578\u3002<\/p>\n

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

\u5728\u4f7f\u7528 `getnewargs()` \u51fd\u6578\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u78ba\u4fdd\u7269\u4ef6\u5be6\u4f5c\u4e86 `__getnewargs__` \u65b9\u6cd5\uff0c\u5426\u5247\u5c07\u5f15\u767c `AttributeError`\u3002\u6b64\u5916\uff0c\u78ba\u4fdd\u50b3\u5165\u7684\u7269\u4ef6\u662f\u6b63\u78ba\u985e\u578b\uff0c\u5426\u5247\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u5916\u884c\u70ba\u3002<\/p>\n

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

`getnewargs()` \u53ef\u4ee5\u8207\u5176\u4ed6\u5e8f\u5217\u5316\u6280\u8853\u7d50\u5408\u4f7f\u7528\uff0c\u4f8b\u5982\u8207 `pickle` \u6a21\u7d44\u642d\u914d\uff0c\u65b9\u4fbf\u5c07\u7269\u4ef6\u5b58\u5132\u5230\u6a94\u6848\u4e2d\u6216\u901a\u904e\u7db2\u8def\u50b3\u905e\u3002\u9019\u4f7f\u5f97\u5728 Python \u9805\u76ee\u4e2d\u8655\u7406\u8907\u96dc\u7269\u4ef6\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\u9ad8\u6548\u3002<\/p>\n

\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3 Python \u7684\u5404\u7a2e\u529f\u80fd\u8207\u4f7f\u7528\u6280\u5de7\uff0c\u6b61\u8fce\u53c3\u8003 [\u9019\u88e1\u7684\u6559\u5b78\u6587](https:\/\/vocus.cc\/article\/your-article-link)\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

`getnewargs()` \u51fd\u6578\u8b93 Python \u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u5f9e\u7269\u4ef6\u7372\u53d6\u53c3\u6578\uff0c\u4e26\u5c07\u5b83\u5011\u8f49\u63db\u70ba\u65b0\u7684\u53c3\u6578\u683c\u5f0f\u3002\u96a8\u8457 Python \u7684\u4e0d\u65b7\u767c\u5c55\uff0c\u638c\u63e1\u9019\u4e9b\u51fd\u6578\u7684\u4f7f\u7528\u5c0d\u65bc\u63d0\u5347\u7a0b\u5f0f\u8a2d\u8a08\u6280\u80fd\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: `getnewargs()` \u51fd\u6578\u548c `__getnewargs__` \u6709\u4ec0\u9ebc\u5340\u5225\uff1f**
\nA1: `getnewargs()` \u662f\u4e00\u500b\u793a\u7bc4\u65b9\u6cd5\uff0c\u901a\u5e38\u662f\u901a\u904e\u7269\u4ef6\u7684 `__getnewargs__` \u65b9\u6cd5\u4f86\u5be6\u4f5c\u3002`__getnewargs__` \u662f\u7528\u4f86\u5b9a\u7fa9\u7269\u4ef6\u5982\u4f55\u8fd4\u56de\u65b0\u53c3\u6578\u7684\u5177\u9ad4\u5be6\u73fe\u3002<\/p>\n

**Q2: \u5982\u4f55\u8655\u7406 `AttributeError` \u7576\u7269\u4ef6\u6c92\u6709\u5be6\u4f5c `__getnewargs__`\uff1f**
\nA2: \u53ef\u4ee5\u5728\u51fd\u6578\u5167\u90e8\u4f7f\u7528 `hasattr()` \u6aa2\u67e5\u7269\u4ef6\u662f\u5426\u6709 `__getnewargs__` \u65b9\u6cd5\uff0c\u82e5\u6c92\u6709\u5247\u7d66\u4e88\u9069\u7576\u7684\u932f\u8aa4\u63d0\u793a\u3002<\/p>\n

**Q3: `getnewargs()` \u51fd\u6578\u80fd\u5426\u8207\u5176\u4ed6\u5e8f\u5217\u5316\u65b9\u6cd5\u7d50\u5408\u4f7f\u7528\uff1f**
\nA3: \u662f\u7684\uff0c`getnewargs()` \u53ef\u4ee5\u8207 Python \u7684 `pickle` \u6a21\u7d44\u7b49\u5176\u4ed6\u5e8f\u5217\u5316\u65b9\u6cd5\u7d50\u5408\uff0c\u4ee5\u4fbf\u6709\u6548\u5730\u5132\u5b58\u548c\u50b3\u905e\u7269\u4ef6\u3002<\/p>\n

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

getnewargs()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u65bc\u6aa2\u67e5\u51fd\u6578\u7684\u53c3\u6578\u548c\u8fd4\u56de\u503c\uff0c\u4e26\u63d0\u4f9b\u66f4\u591a\u7684\u7d30\u7bc0\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7406\u89e3\u51fd\u6578\u7684\u529f\u80fd\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-3450","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-TE","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3450","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=3450"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3450\/revisions"}],"predecessor-version":[{"id":3451,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3450\/revisions\/3451"}],"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=3450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}