{"id":2968,"date":"2025-05-28T16:24:51","date_gmt":"2025-06-04T09:16:51","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2968"},"modified":"2025-06-04T16:24:51","modified_gmt":"2025-06-04T09:16:51","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84bytearray%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%84bytearray%e5%87%bd%e6%95%b8\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 `bytearray()` \u51fd\u6578\uff1a2025 \u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

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

\u5728 Python \u4e2d\uff0c`bytearray()` \u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u7528\u65bc\u5275\u5efa\u53ef\u8b8a\u7684\u4f4d\u5143\u7d44\u5e8f\u5217\u3002\u9019\u500b\u529f\u80fd\u5728\u8655\u7406\u4e8c\u9032\u5236\u6578\u64da\u6642\u7279\u5225\u6709\u7528\uff0c\u5982\u6587\u4ef6\u64cd\u4f5c\u3001\u7db2\u8def\u901a\u4fe1\u7b49\u3002\u672c\u6587\u5c07\u4ecb\u7d39 `bytearray()` \u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\u3001\u5be6\u4f5c\u7bc4\u4f8b\u4ee5\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u5e6b\u52a9\u4f60\u5728 2025 \u5e74\u7684 Python \u958b\u767c\u4e2d\u66f4\u6709\u6548\u7387\u5730\u61c9\u7528\u6b64\u51fd\u6578\u3002<\/p>\n

\u4ec0\u9ebc\u662f `bytearray()` \u51fd\u6578\uff1f<\/h2>\n

`bytearray()` \u51fd\u6578\u53ef\u4ee5\u63a5\u53d7\u4ee5\u4e0b\u53c3\u6578\uff1a
\n– **\u9577\u5ea6**\uff1a\u6307\u5b9a\u4f4d\u5143\u7d44\u5e8f\u5217\u7684\u9577\u5ea6\uff0c\u9810\u8a2d\u70ba 0\u3002
\n– **\u5e8f\u5217**\uff1a\u53ef\u4ee5\u662f\u4e00\u500b\u53ef\u8fed\u4ee3\u5c0d\u8c61\uff0c\u5982\u5217\u8868\u6216\u5b57\u4e32\uff0c\u9810\u8a2d\u70ba\u7a7a\u3002
\n– **\u7de8\u78bc**\uff1a\u5982\u679c\u5e8f\u5217\u662f\u5b57\u4e32\uff0c\u5247\u6307\u5b9a\u7de8\u78bc\u65b9\u5f0f\uff0c\u9810\u8a2d\u70ba UTF-8\u3002<\/p>\n

\u4ee5\u4e0b\u662f `bytearray()` \u51fd\u6578\u7684\u4e00\u500b\u7c21\u55ae\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5275\u5efa\u4e00\u500b\u9577\u5ea6\u70ba 10 \u7684\u4f4d\u5143\u7d44\u5e8f\u5217\u4e26\u5c07\u5176\u503c\u8a2d\u70ba 0\uff1a<\/p>\n

\u4f7f\u7528\u7bc4\u4f8b<\/h2>\n

“`python
\n# \u5efa\u7acb\u4e00\u500b\u9577\u5ea6\u70ba 10 \u7684\u4f4d\u5143\u7d44\u5e8f\u5217
\nba = bytearray(10)<\/p>\n

# \u5c07\u4f4d\u5143\u7d44\u5e8f\u5217\u7684\u503c\u8a2d\u70ba 0
\nba[:] = 0<\/p>\n

# \u5370\u51fa\u4f4d\u5143\u7d44\u5e8f\u5217
\nprint(ba)
\n“`<\/p>\n

\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\uff0c\u5c07\u6703\u5f97\u5230\u4ee5\u4e0b\u7684\u7d50\u679c\uff1a
\n“`python
\nbytearray(b’\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00′)
\n“`<\/p>\n

\u4f60\u9084\u53ef\u4ee5\u4f7f\u7528 `bytearray()` \u51fd\u6578\u4f86\u5275\u5efa\u4e00\u500b\u4f4d\u5143\u7d44\u5e8f\u5217\u4e26\u5c07\u5176\u503c\u8a2d\u70ba\u5b57\u4e32\uff1a<\/p>\n

“`python
\n# \u5c07\u4f4d\u5143\u7d44\u5e8f\u5217\u7684\u503c\u8a2d\u70ba\u5b57\u4e32
\nba = bytearray(10)
\nba[:] = “Hello”<\/p>\n

# \u5370\u51fa\u4f4d\u5143\u7d44\u5e8f\u5217
\nprint(ba)
\n“`<\/p>\n

\u57f7\u884c\u5f8c\u7684\u7d50\u679c\u6703\u662f\uff1a
\n“`python
\nbytearray(b’Hello\\x00\\x00\\x00\\x00′)
\n“`<\/p>\n

\u6b64\u5916\uff0c`bytearray()` \u4e5f\u80fd\u63a5\u6536\u6574\u6578\u4f5c\u70ba\u503c\uff1a<\/p>\n

“`python
\n# \u5c07\u4f4d\u5143\u7d44\u5e8f\u5217\u7684\u503c\u8a2d\u70ba\u6574\u6578
\nba = bytearray(10)
\nba[:] = 123<\/p>\n

# \u5370\u51fa\u4f4d\u5143\u7d44\u5e8f\u5217
\nprint(ba)
\n“`<\/p>\n

\u9019\u6a23\u7684\u7d50\u679c\u5c07\u662f\uff1a
\n“`python
\nbytearray(b'{\\x7f\\x7f\\x7f\\x7f\\x7f\\x7f\\x7f\\x7f\\x7f\\x7f’)
\n“`<\/p>\n

\u4f7f\u7528 `bytearray()` \u7684\u512a\u9ede<\/h2>\n

`bytearray()` \u51fd\u6578\u7684\u512a\u9ede\u5728\u65bc\u5176\u53ef\u8b8a\u6027\uff0c\u9019\u4f7f\u5f97\u4f60\u53ef\u4ee5\u96a8\u6642\u4fee\u6539\u4f4d\u5143\u7d44\u5e8f\u5217\u7684\u5167\u5bb9\uff0c\u800c\u7121\u9700\u91cd\u65b0\u5275\u5efa\u4e00\u500b\u65b0\u7684\u7269\u4ef6\u3002\u9019\u7a2e\u9748\u6d3b\u6027\u5728\u8655\u7406\u5927\u578b\u6578\u64da\u96c6\u6642\u7279\u5225\u6709\u7528\u3002<\/p>\n

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

1. **TypeError**\uff1a\u5982\u679c\u4f60\u5617\u8a66\u5c07\u4e0d\u517c\u5bb9\u7684\u985e\u578b\u8ce6\u503c\u7d66 `bytearray`\uff0c\u4f8b\u5982\u5c07\u5b57\u4e32\u4e2d\u7684\u975e ASCII \u5b57\u7b26\u8ce6\u503c\uff0c\u5c07\u6703\u5f15\u767c\u932f\u8aa4\u3002\u78ba\u4fdd\u4f60\u4f7f\u7528\u7684\u5b57\u4e32\u662f\u6b63\u78ba\u7de8\u78bc\u7684\u3002<\/p>\n

2. **IndexError**\uff1a\u7576\u4f60\u8a66\u5716\u8a2a\u554f\u8d85\u51fa `bytearray` \u9577\u5ea6\u7684\u7d22\u5f15\u6642\uff0c\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u6aa2\u67e5\u4f60\u7684\u7d22\u5f15\u7bc4\u570d\u4ee5\u907f\u514d\u6b64\u554f\u984c\u3002<\/p>\n

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

`bytearray()` \u5728\u591a\u7a2e\u60c5\u5883\u4e0b\u90fd\u53ef\u4ee5\u5927\u653e\u7570\u5f69\uff0c\u4f8b\u5982\uff1a
\n– \u8655\u7406\u7db2\u8def\u6578\u64da\uff1a\u63a5\u6536\u6216\u767c\u9001\u4e8c\u9032\u5236\u6578\u64da\u3002
\n– \u6587\u4ef6\u8655\u7406\uff1a\u8b80\u53d6\u548c\u5beb\u5165\u4e8c\u9032\u5236\u6587\u4ef6\u3002
\n– \u6578\u64da\u8f49\u63db\uff1a\u5728\u4e0d\u540c\u683c\u5f0f\u4e4b\u9593\u8f49\u63db\u6578\u64da\u3002<\/p>\n

\u9019\u4e9b\u61c9\u7528\u80fd\u5920\u63d0\u5347\u4f60\u7684\u7a0b\u5f0f\u8a2d\u8a08\u80fd\u529b\uff0c\u4e26\u4f7f\u4f60\u7684\u7a0b\u5f0f\u66f4\u52a0\u9ad8\u6548\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

Python \u7684 `bytearray()` \u51fd\u6578\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u65b9\u5f0f\u4f86\u5275\u5efa\u548c\u64cd\u4f5c\u4f4d\u5143\u7d44\u5e8f\u5217\u3002\u7121\u8ad6\u662f\u5728\u6578\u64da\u8655\u7406\u9084\u662f\u7db2\u8def\u901a\u4fe1\u4e2d\uff0c\u5408\u7406\u4f7f\u7528 `bytearray()` \u90fd\u80fd\u63d0\u5347\u4f60\u7684\u958b\u767c\u6548\u7387\u548c\u7a0b\u5f0f\u6027\u80fd\u3002<\/p>\n

\u5982\u9700\u6df1\u5165\u4e86\u89e3\u66f4\u591a Python \u6559\u5b78\uff0c\u8acb\u53c3\u8003 [\u9019\u88e1](https:\/\/vocus.cc) \u7684\u76f8\u95dc\u6587\u7ae0\u3002<\/p>\n

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

**Q1: `bytearray()` \u548c `bytes` \u6709\u4ec0\u9ebc\u5340\u5225\uff1f**
\nA1: `bytes` \u662f\u4e0d\u53ef\u8b8a\u7684\u4f4d\u5143\u7d44\u5e8f\u5217\uff0c\u800c `bytearray` \u662f\u53ef\u8b8a\u7684\u3002\u9019\u610f\u5473\u8457\u4f60\u53ef\u4ee5\u5728\u5275\u5efa\u5f8c\u4fee\u6539 `bytearray` \u7684\u5167\u5bb9\uff0c\u4f46\u7121\u6cd5\u4fee\u6539 `bytes`\u3002<\/p>\n

**Q2: `bytearray()` \u53ef\u4ee5\u7528\u4f86\u8655\u7406\u54ea\u4e9b\u6578\u64da\u985e\u578b\uff1f**
\nA2: `bytearray()` \u53ef\u4ee5\u8655\u7406\u6574\u6578\u3001\u5b57\u4e32\u53ca\u5176\u4ed6\u53ef\u8fed\u4ee3\u5c0d\u8c61\uff0c\u5982\u5217\u8868\u3002<\/p>\n

**Q3: \u5982\u4f55\u5c07 `bytearray` \u8f49\u63db\u70ba\u5176\u4ed6\u6578\u64da\u985e\u578b\uff1f**
\nA3: \u4f60\u53ef\u4ee5\u4f7f\u7528 `bytes()` \u51fd\u6578\u5c07 `bytearray` \u8f49\u63db\u70ba\u4e0d\u53ef\u8b8a\u7684 `bytes`\uff0c\u6216\u8005\u4f7f\u7528 `str()` \u51fd\u6578\u5c07\u5176\u8f49\u63db\u70ba\u5b57\u4e32\uff08\u9700\u8981\u6307\u5b9a\u7de8\u78bc\uff09\u3002<\/p>\n

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

\u4e86\u89e3Python\u4e2d\u7684bytearray()\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u5c07\u5b57\u7b26\u4e32\u8f49\u63db\u70ba\u5b57\u7bc0\u9663\u5217\uff0c\u4e26\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u7684\u65b9\u6cd5\u4f86\u64cd\u4f5c\u5b57\u7bc0\u9663\u5217\u3002\u672c\u6587\u5c07\u4ecb\u7d39bytearray()\u51fd\u6578\u7684\u7528\u6cd5\uff0c\u4ee5\u53ca\u5b83\u7684\u512a\u9ede\u548c\u7f3a\u9ede\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-2968","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-LS","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2968","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=2968"}],"version-history":[{"count":2,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2968\/revisions"}],"predecessor-version":[{"id":12997,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2968\/revisions\/12997"}],"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=2968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}