{"id":3244,"date":"2025-05-31T16:00:32","date_gmt":"2025-06-04T08:29:32","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3244"},"modified":"2025-06-04T16:00:32","modified_gmt":"2025-06-04T08:29:32","slug":"python%e4%b8%ad%e7%9a%84%e4%bd%8d%e5%85%83%e9%9b%86%ef%bc%9a%e4%bd%bf%e7%94%a8bitset%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/python%e4%b8%ad%e7%9a%84%e4%bd%8d%e5%85%83%e9%9b%86%ef%bc%9a%e4%bd%bf%e7%94%a8bitset%e5%87%bd%e6%95%b8\/","title":{"rendered":"2025\u5e74\u5168\u65b0Python\u4f4d\u5143\u96c6\u6559\u5b78\uff1a\u6df1\u5165\u4e86\u89e3\u8207\u5be6\u4f5c\u7bc4\u4f8b"},"content":{"rendered":"

<\/p>\n

2025\u5e74\u5168\u65b0Python\u4f4d\u5143\u96c6\u6559\u5b78<\/h1>\n

\u4f4d\u5143\u96c6\uff08Bitset\uff09\u662f\u4e00\u7a2e\u9ad8\u6548\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u80fd\u5920\u5728\u4f4d\u5143\u5c64\u7d1a\u4e0a\u5132\u5b58\u548c\u64cd\u4f5c\u8cc7\u6599\u3002\u5b83\u5141\u8a31\u958b\u767c\u8005\u5feb\u901f\u6aa2\u67e5\u67d0\u500b\u4f4d\u5143\u662f\u5426\u88ab\u8a2d\u5b9a\u70ba1\u62160\u3002\u96a8\u8457Python\u7684\u6301\u7e8c\u66f4\u65b0\uff0c\u672c\u6587\u5c07\u4ecb\u7d392025\u5e74\u6700\u65b0\u7684\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\uff0c\u5e6b\u52a9\u60a8\u638c\u63e1Python\u4e2d\u7684\u4f4d\u5143\u96c6\u64cd\u4f5c\u3002<\/p>\n

\u4f4d\u5143\u96c6\u7684\u5efa\u7acb<\/h2>\n

\u5728Python\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528`bitarray`\u6a21\u7d44\u4f86\u5efa\u7acb\u4f4d\u5143\u96c6\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88dd\u9019\u500b\u6a21\u7d44\uff1a<\/p>\n

“`bash
\npip install bitarray
\n“`<\/p>\n

\u7136\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u5f0f\u4f86\u5efa\u7acb\u4f4d\u5143\u96c6\uff1a<\/p>\n

“`python
\nfrom bitarray import bitarray<\/p>\n

# \u5efa\u7acb\u4e00\u500b\u7a7a\u7684bitset\uff0c\u9810\u8a2d\u5927\u5c0f\u70ba10
\nbitset1 = bitarray(10)<\/p>\n

# \u4f7f\u7528\u5b57\u4e32\u521d\u59cb\u5316bitset
\nbitset2 = bitarray(‘10101’)<\/p>\n

# \u4f7f\u7528\u53ef\u8fed\u4ee3\u7269\u4ef6\u521d\u59cb\u5316bitset
\nbitset3 = bitarray([1, 0, 1, 0, 1])
\n“`<\/p>\n

\u5efa\u7acb\u5b8c\u4f4d\u5143\u96c6\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528`len()`\u51fd\u5f0f\u4f86\u53d6\u5f97\u5176\u9577\u5ea6\uff1a<\/p>\n

“`python
\n# \u53d6\u5f97bitset1\u7684\u9577\u5ea6
\nlength1 = len(bitset1)<\/p>\n

# \u53d6\u5f97bitset2\u7684\u9577\u5ea6
\nlength2 = len(bitset2)<\/p>\n

# \u53d6\u5f97bitset3\u7684\u9577\u5ea6
\nlength3 = len(bitset3)
\n“`<\/p>\n

\u4f4d\u5143\u96c6\u7684\u64cd\u4f5c<\/h2>\n

\u4f4d\u5143\u96c6\u63d0\u4f9b\u4e86\u5e7e\u500b\u5be6\u7528\u7684\u64cd\u4f5c\u51fd\u5f0f\uff0c\u8b93\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u7ba1\u7406\u4f4d\u5143\u96c6\u7684\u72c0\u614b\uff1a<\/p>\n

– **set()**\uff1a\u5c07\u6307\u5b9a\u7684\u4f4d\u5143\u8a2d\u5b9a\u70ba1\u3002
\n– **clear()**\uff1a\u5c07\u6307\u5b9a\u7684\u4f4d\u5143\u8a2d\u5b9a\u70ba0\u3002
\n– **test()**\uff1a\u6aa2\u67e5\u6307\u5b9a\u7684\u4f4d\u5143\u662f\u5426\u70ba1\u3002
\n– **count()**\uff1a\u8a08\u7b97\u4f4d\u5143\u96c6\u4e2d\u88ab\u8a2d\u5b9a\u70ba1\u7684\u4f4d\u5143\u6578\u91cf\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u64cd\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\n# \u8a2d\u5b9a\u7b2c3\u500b\u4f4d\u5143\u70ba1
\nbitset2[3] = 1<\/p>\n

# \u6e05\u9664\u7b2c3\u500b\u4f4d\u5143
\nbitset2[3] = 0<\/p>\n

# \u6aa2\u67e5\u7b2c3\u500b\u4f4d\u5143\u662f\u5426\u70ba1
\nresult = bitset2[3]\n

# \u8a08\u7b97\u88ab\u8a2d\u5b9a\u70ba1\u7684\u4f4d\u5143\u6578\u91cf
\ncount = bitset2.count()
\n“`<\/p>\n

\u4f4d\u5143\u96c6\u7684\u61c9\u7528<\/h2>\n

\u4f4d\u5143\u96c6\u53ef\u7528\u65bc\u591a\u7a2e\u5834\u666f\uff0c\u4f8b\u5982\uff1a<\/p>\n

1. **\u5b57\u4e32\u6aa2\u67e5**\uff1a\u5c07\u5b57\u4e32\u4e2d\u7684\u6bcf\u500b\u5b57\u5143\u8f49\u63db\u70ba\u4f4d\u5143\uff0c\u5feb\u901f\u6aa2\u67e5\u67d0\u5b57\u5143\u662f\u5426\u5b58\u5728\u3002
\n “`python
\n bitset = bitarray(‘Hello World’)
\n result = bitset[bitset.index(‘o’)] # \u6aa2\u67e5\u5b57\u5143’o’\u662f\u5426\u5b58\u5728
\n “`<\/p>\n

2. **\u5e03\u6797\u503c\u5132\u5b58**\uff1a\u5132\u5b58\u5e03\u6797\u503c\u4e26\u5feb\u901f\u6aa2\u67e5\u3002
\n “`python
\n bool_set = bitarray([True, False, True])
\n result = bool_set[2] # \u6aa2\u67e5\u7b2c3\u500b\u5e03\u6797\u503c\u662f\u5426\u70baTrue
\n “`<\/p>\n

3. **\u6574\u6578\u548c\u6d6e\u9ede\u6578\u7684\u64cd\u4f5c**\uff1a\u5c07\u6574\u6578\u6216\u6d6e\u9ede\u6578\u8f49\u63db\u70ba\u4f4d\u5143\u96c6\uff0c\u9032\u884c\u5feb\u901f\u6aa2\u67e5\u3002
\n “`python
\n int_set = bitarray(‘00001010’) # \u4f8b\u5982\uff1a\u5341\u9032\u523610
\n result = int_set[2] # \u6aa2\u67e5\u7b2c3\u500b\u4f4d\u5143\u662f\u5426\u88ab\u8a2d\u5b9a\u70ba1
\n “`<\/p>\n

\u4f4d\u5143\u96c6\u7684\u9ad8\u6548\u6027\u4f7f\u5176\u5728\u9700\u8981\u5feb\u901f\u67e5\u8a62\u7684\u61c9\u7528\u4e2d\u975e\u5e38\u6709\u7528\uff0c\u4f8b\u5982\u8cc7\u6599\u5eab\u7d22\u5f15\u3001\u5716\u5f62\u8655\u7406\u7b49\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664\u8207\u5ef6\u4f38\u61c9\u7528<\/h2>\n

\u5728\u4f7f\u7528\u4f4d\u5143\u96c6\u6642\uff0c\u60a8\u53ef\u80fd\u9047\u5230\u4e9b\u8a31\u554f\u984c\uff0c\u4f8b\u5982\uff1a<\/p>\n

– **IndexError**\uff1a\u5982\u679c\u60a8\u5617\u8a66\u8a2a\u554f\u7684\u4f4d\u5143\u8d85\u51fa\u7bc4\u570d\uff0c\u8acb\u78ba\u4fdd\u4f4d\u5143\u96c6\u7684\u5927\u5c0f\u8db3\u5920\u3002
\n– **TypeError**\uff1a\u7576\u60a8\u5617\u8a66\u5c07\u975e\u6574\u6578\u578b\u5225\u7684\u503c\u8ce6\u7d66\u4f4d\u5143\u6642\uff0c\u8acb\u78ba\u8a8d\u8cc7\u6599\u578b\u5225\u7684\u6b63\u78ba\u6027\u3002<\/p>\n

\u6b64\u5916\uff0c\u60a8\u9084\u53ef\u4ee5\u8003\u616e\u5c07\u4f4d\u5143\u96c6\u7528\u65bc\u66f4\u8907\u96dc\u7684\u61c9\u7528\uff0c\u5982\u4f4d\u5143\u5716\uff08bitmap\uff09\u6216\u7528\u65bc\u58d3\u7e2e\u8cc7\u6599\u7684\u6f14\u7b97\u6cd5\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u4f4d\u5143\u96c6\u662f\u4e00\u500b\u9ad8\u6548\u4e14\u9748\u6d3b\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u80fd\u5920\u5feb\u901f\u64cd\u4f5c\u548c\u67e5\u8a62\u8cc7\u6599\u3002Python\u7684`bitarray`\u6a21\u7d44\u4f7f\u5f97\u4f4d\u5143\u96c6\u7684\u4f7f\u7528\u8b8a\u5f97\u7c21\u55ae\u800c\u5f37\u5927\uff0c\u7121\u8ad6\u662f\u8655\u7406\u5b57\u4e32\u3001\u5e03\u6797\u503c\u3001\u6574\u6578\u9084\u662f\u6d6e\u9ede\u6578\uff0c\u4f4d\u5143\u96c6\u5747\u80fd\u63d0\u4f9b\u51fa\u8272\u7684\u6027\u80fd\u3002<\/p>\n

\u5982\u9700\u6df1\u5165\u4e86\u89e3Python\u76f8\u95dc\u7684\u5176\u4ed6\u4e3b\u984c\uff0c\u5efa\u8b70\u53c3\u8003[\u9019\u88e1](https:\/\/vocus.cc\/article\/615d5a5df4c9b40001ff8e8f)\u9032\u884c\u9032\u4e00\u6b65\u5b78\u7fd2\u3002<\/p>\n

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

**Q1\uff1aPython\u4e2d\u7684\u4f4d\u5143\u96c6\u53ef\u4ee5\u7528\u4f86\u505a\u4ec0\u9ebc\uff1f**
\nA1\uff1a\u4f4d\u5143\u96c6\u53ef\u4ee5\u7528\u65bc\u5132\u5b58\u548c\u5feb\u901f\u6aa2\u67e5\u8cc7\u6599\uff0c\u5982\u5b57\u4e32\u4e2d\u7684\u5b57\u5143\u3001\u5e03\u6797\u503c\u3001\u6574\u6578\u7b49\uff0c\u9069\u5408\u7528\u65bc\u9ad8\u6548\u7684\u8cc7\u6599\u8655\u7406\u548c\u67e5\u8a62\u3002<\/p>\n

**Q2\uff1a\u5982\u4f55\u64f4\u5c55\u4f4d\u5143\u96c6\u7684\u5927\u5c0f\uff1f**
\nA2\uff1a\u60a8\u53ef\u4ee5\u4f7f\u7528`bitarray`\u7684`extend()`\u65b9\u6cd5\u4f86\u64f4\u5c55\u4f4d\u5143\u96c6\u7684\u5927\u5c0f\uff0c\u6216\u662f\u76f4\u63a5\u521d\u59cb\u5316\u4e00\u500b\u66f4\u5927\u7684\u4f4d\u5143\u96c6\u3002<\/p>\n

**Q3\uff1a\u4f4d\u5143\u96c6\u548c\u5217\u8868\u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f**
\nA3\uff1a\u4f4d\u5143\u96c6\u5c08\u6ce8\u65bc\u4f4d\u5143\u64cd\u4f5c\uff0c\u80fd\u63d0\u4f9b\u66f4\u9ad8\u6548\u7684\u5132\u5b58\u548c\u67e5\u8a62\uff0c\u800c\u5217\u8868\u5247\u662f\u66f4\u901a\u7528\u7684\u8cc7\u6599\u7d50\u69cb\uff0c\u9069\u5408\u5132\u5b58\u5404\u985e\u578b\u7684\u8cc7\u6599\u3002<\/p>\n

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

bitset()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u51fd\u6578\uff0c\u53ef\u4ee5\u7528\u65bc\u64cd\u4f5c\u4f4d\u5143\u96c6\uff0c\u63d0\u4f9b\u4e86\u4e00\u7a2e\u9ad8\u6548\u7684\u65b9\u6cd5\u4f86\u64cd\u4f5c\u4f4d\u5143\u96c6\u3002\u672c\u6587\u5c07\u4ecb\u7d39bitset()\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4ee5\u53ca\u5b83\u5728Python\u4e2d\u7684\u61c9\u7528\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-3244","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-Qk","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3244","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=3244"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3244\/revisions"}],"predecessor-version":[{"id":12891,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3244\/revisions\/12891"}],"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=3244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}