{"id":3586,"date":"2025-05-29T15:46:08","date_gmt":"2025-06-04T08:01:07","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3586"},"modified":"2025-06-04T15:46:08","modified_gmt":"2025-06-04T08:01:07","slug":"%e8%a7%a3%e6%b1%bapython%e4%b8%ad%e7%9a%84floatingpointerror","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e8%a7%a3%e6%b1%bapython%e4%b8%ad%e7%9a%84floatingpointerror\/","title":{"rendered":"\u6df1\u5165\u89e3\u6790 Python \u7684 FloatingPointError\uff1a\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u8207\u6700\u4f73\u5be6\u8e10\uff082025 \u6700\u65b0\uff09"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u89e3\u6790 Python \u7684 FloatingPointError\uff1a\u539f\u56e0\u3001\u89e3\u6c7a\u65b9\u6848\u8207\u6700\u4f73\u5be6\u8e10\uff082025 \u6700\u65b0\uff09<\/h1>\n

\u5728 Python \u7a0b\u5f0f\u8a2d\u8a08\u4e2d\uff0cFloatingPointError \u662f\u4e00\u500b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u53ef\u80fd\u767c\u751f\u5728\u6d6e\u9ede\u6578\u904b\u7b97\u904e\u7a0b\u4e2d\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u6d6e\u9ede\u6578\u7684\u7cbe\u5ea6\u554f\u984c\u6709\u95dc\uff0c\u53ef\u80fd\u662f\u7531\u65bc\u8a08\u7b97\u6a5f\u786c\u9ad4\u7684\u9650\u5236\u9020\u6210\u7684\u3002<\/p>\n

\u4ec0\u9ebc\u662f FloatingPointError\uff1f<\/h2>\n

FloatingPointError \u662f Python \u4e2d\u7684\u4e00\u7a2e\u4f8b\u5916\uff08Exception\uff09\uff0c\u5b83\u6703\u5728\u6d6e\u9ede\u6578\u904b\u7b97\u5931\u6557\u6642\u5f15\u767c\u3002\u4f8b\u5982\uff0c\u7576\u904b\u7b97\u7d50\u679c\u8d85\u51fa\u4e86\u6d6e\u9ede\u6578\u80fd\u5920\u8868\u793a\u7684\u7bc4\u570d\u6642\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u9019\u985e\u554f\u984c\u5728\u9032\u884c\u6578\u5b78\u8a08\u7b97\u6216\u79d1\u5b78\u8a08\u7b97\u6642\u5c24\u5176\u5e38\u898b\uff0c\u56e0\u70ba\u9019\u4e9b\u8a08\u7b97\u901a\u5e38\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u6578\u503c\u8655\u7406\u3002<\/p>\n

FloatingPointError \u7684\u767c\u751f\u539f\u56e0<\/h2>\n

FloatingPointError \u7684\u767c\u751f\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u7a2e\uff1a<\/p>\n

1. **\u6d6e\u9ede\u6578\u7cbe\u5ea6\u554f\u984c**\uff1a\u7531\u65bc\u8a08\u7b97\u6a5f\u4f7f\u7528\u6709\u9650\u7684\u4f4d\u5143\u7d44\u4f86\u8868\u793a\u6d6e\u9ede\u6578\uff0c\u9019\u53ef\u80fd\u5c0e\u81f4\u8a08\u7b97\u7d50\u679c\u7684\u8aa4\u5dee\u3002
\n2. **\u4e0d\u6b63\u78ba\u7684\u6578\u5b78\u904b\u7b97**\uff1a\u4f8b\u5982\uff0c\u5c0d\u65bc\u975e\u5e38\u5927\u7684\u6216\u975e\u5e38\u5c0f\u7684\u6578\u9032\u884c\u76f8\u52a0\u6216\u76f8\u6e1b\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u503c\u6ea2\u51fa\u3002
\n3. **\u8edf\u9ad4\u908f\u8f2f\u932f\u8aa4**\uff1a\u5982\u679c\u5728\u7a0b\u5f0f\u78bc\u4e2d\u4f7f\u7528\u4e86\u4e0d\u6b63\u78ba\u7684\u6d6e\u9ede\u6578\u904b\u7b97\uff0c\u5247\u53ef\u80fd\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n

\u5982\u4f55\u89e3\u6c7a FloatingPointError\uff1f<\/h2>\n

\u89e3\u6c7a FloatingPointError \u7684\u6700\u4f73\u5be6\u8e10\u5982\u4e0b\uff1a<\/p>\n

1. **\u6aa2\u67e5\u4e26\u4fee\u6b63\u7a0b\u5f0f\u78bc**\uff1a
\n – \u78ba\u4fdd\u6d6e\u9ede\u6578\u904b\u7b97\u4e2d\u7684\u6578\u503c\u5408\u7406\uff0c\u907f\u514d\u904e\u5927\u6216\u904e\u5c0f\u7684\u6578\u5b57\u3002
\n – \u4f7f\u7528\u689d\u4ef6\u8a9e\u53e5\u4f86\u6aa2\u67e5\u904b\u7b97\u7d50\u679c\u662f\u5426\u5728\u53ef\u63a5\u53d7\u7684\u7bc4\u570d\u5167\u3002<\/p>\n

2. **\u4f7f\u7528 decimal \u6a21\u7d44**\uff1a
\n – Python \u7684 `decimal` \u6a21\u7d44\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u6578\u503c\u7cbe\u5ea6\uff0c\u9069\u5408\u7528\u65bc\u9700\u8981\u7cbe\u78ba\u8a08\u7b97\u7684\u5834\u5408\u3002
\n – \u4f8b\u5982\uff1a
\n “`python
\n from decimal import Decimal<\/p>\n

a = Decimal(‘0.1’)
\n b = Decimal(‘0.2’)
\n result = a + b
\n print(result) # \u6b63\u78ba\u8f38\u51fa 0.3
\n “`<\/p>\n

3. **\u932f\u8aa4\u8655\u7406**\uff1a
\n – \u5728\u95dc\u9375\u7684\u904b\u7b97\u5340\u57df\u4f7f\u7528 `try-except` \u584a\u4f86\u6355\u6349\u548c\u8655\u7406 FloatingPointError\u3002
\n “`python
\n try:
\n # \u9032\u884c\u6d6e\u9ede\u6578\u904b\u7b97
\n result = some_floating_point_operation()
\n except FloatingPointError:
\n print(“\u767c\u751f\u6d6e\u9ede\u6578\u904b\u7b97\u932f\u8aa4\uff0c\u8acb\u6aa2\u67e5\u6578\u64da\u3002”)
\n “`<\/p>\n

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

\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u9032\u884c\u66f4\u8907\u96dc\u7684\u6578\u5b78\u904b\u7b97\uff0c\u9019\u53ef\u4ee5\u5229\u7528 NumPy \u6216 SciPy \u7b49\u6578\u5b78\u5eab\u4f86\u8655\u7406\u3002\u9019\u4e9b\u5eab\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u6578\u503c\u8a08\u7b97\u529f\u80fd\uff0c\u4e26\u4e14\u901a\u5e38\u6bd4\u539f\u751f\u7684 Python \u5be6\u73fe\u6548\u7387\u66f4\u9ad8\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

FloatingPointError \u662f\u4e00\u500b\u5e38\u898b\u7684 Python \u932f\u8aa4\uff0c\u4e3b\u8981\u51fa\u73fe\u5728\u6d6e\u9ede\u6578\u904b\u7b97\u4e2d\u3002\u900f\u904e\u6aa2\u67e5\u7a0b\u5f0f\u78bc\u3001\u4f7f\u7528 `decimal` \u6a21\u7d44\u4ee5\u53ca\u9069\u7576\u7684\u932f\u8aa4\u8655\u7406\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u6b64\u932f\u8aa4\u7684\u767c\u751f\u3002\u60f3\u6df1\u5165\u4e86\u89e3\u66f4\u591a Python \u7684\u932f\u8aa4\u8655\u7406\u6280\u5de7\uff0c\u53ef\u4ee5\u53c3\u8003 [\u9019\u88e1](https:\/\/vocus.cc) \u7684\u76f8\u95dc\u6559\u5b78\u6587\u7ae0\u3002<\/p>\n

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

**Q1: \u5982\u4f55\u5224\u65b7\u6211\u7684\u7a0b\u5f0f\u78bc\u662f\u5426\u6703\u5f15\u767c FloatingPointError\uff1f**
\nA1: \u60a8\u53ef\u4ee5\u4f7f\u7528\u55ae\u5143\u6e2c\u8a66\u4f86\u6aa2\u67e5\u908a\u754c\u689d\u4ef6\uff0c\u7279\u5225\u662f\u91dd\u5c0d\u6d6e\u9ede\u6578\u904b\u7b97\u7684\u7d50\u679c\u9032\u884c\u9a57\u8b49\u3002<\/p>\n

**Q2: \u4f7f\u7528 decimal \u6a21\u7d44\u6703\u5f71\u97ff\u6211\u7684\u7a0b\u5f0f\u6548\u80fd\u55ce\uff1f**
\nA2: \u662f\u7684\uff0c\u4f7f\u7528 `decimal` \u6a21\u7d44\u6703\u6bd4\u4f7f\u7528\u6d6e\u9ede\u6578\u904b\u7b97\u7a0d\u6162\uff0c\u4f46\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7684\u7cbe\u78ba\u5ea6\uff0c\u9069\u5408\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u61c9\u7528\u3002<\/p>\n

**Q3: \u6709\u5176\u4ed6\u65b9\u6cd5\u53ef\u4ee5\u8655\u7406\u6d6e\u9ede\u6578\u904b\u7b97\u7684\u7cbe\u5ea6\u554f\u984c\u55ce\uff1f**
\nA3: \u9664\u4e86\u4f7f\u7528 `decimal` \u6a21\u7d44\u5916\uff0c\u60a8\u4e5f\u53ef\u4ee5\u8003\u616e\u4f7f\u7528 NumPy \u5eab\u4e2d\u7684\u9ad8\u7cbe\u5ea6\u6578\u64da\u985e\u578b\uff0c\u5982 `float128`\uff0c\u4f86\u9032\u884c\u66f4\u7cbe\u78ba\u7684\u904b\u7b97\u3002<\/p>\n

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

\u672c\u6587\u5c07\u4ecb\u7d39Python\u4e2d\u7684FloatingPointError\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6848\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8655\u7406\u6d6e\u9ede\u6578\u932f\u8aa4\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-3586","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-VQ","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3586","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=3586"}],"version-history":[{"count":3,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3586\/revisions"}],"predecessor-version":[{"id":12787,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3586\/revisions\/12787"}],"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=3586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3586"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}