<\/p>\n
\u5728 Python \u4e2d\uff0c`buffer()` \u51fd\u5f0f\u662f\u4e00\u500b\u904e\u6642\u7684\u529f\u80fd\uff0c\u5df2\u88ab\u65b0\u7248\u672c\u7684 Python \u6240\u6dd8\u6c70\u3002\u73fe\u5728\u5efa\u8b70\u4f7f\u7528 `memoryview` \u4f86\u8655\u7406\u7de9\u885d\u5340\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528 `memoryview` \u4f86\u64cd\u4f5c\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u4e32\uff0c\u4e26\u5c55\u793a 2025 \u5e74\u6700\u65b0\u7684\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n
## \u4ec0\u9ebc\u662f\u7de9\u885d\u5340\uff1f<\/p>\n
\u7de9\u885d\u5340\u662f\u4e00\u7a2e\u5728\u5167\u5b58\u4e2d\u5b58\u5132\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u5e38\u7528\u65bc\u63d0\u9ad8\u6578\u64da\u8655\u7406\u7684\u6548\u7387\u3002\u5728 Python \u4e2d\uff0c\u7de9\u885d\u5340\u53ef\u4ee5\u7528\u65bc\u5c0d\u5b57\u4e32\u9032\u884c\u8b80\u53d6\u548c\u5beb\u5165\u64cd\u4f5c\uff0c\u4ee5\u53ca\u9032\u884c\u7de8\u78bc\u548c\u89e3\u78bc\u3002<\/p>\n
## \u4f7f\u7528 memoryview \u4f86\u64cd\u4f5c\u7de9\u885d\u5340<\/p>\n
\u5728 Python 3.x \u7248\u672c\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 `memoryview` \u4f86\u5275\u5efa\u4e00\u500b\u5c0d\u8c61\uff0c\u9019\u500b\u5c0d\u8c61\u53ef\u4ee5\u8b93\u4f60\u76f4\u63a5\u64cd\u4f5c\u5b57\u4e32\u3001\u6578\u7d44\u6216\u5176\u4ed6\u53ef\u8b8a\u9577\u5ea6\u7684\u5c0d\u8c61\uff0c\u800c\u4e0d\u9700\u8981\u5275\u5efa\u984d\u5916\u7684\u526f\u672c\u3002<\/p>\n
### `memoryview` \u7684\u8a9e\u6cd5<\/p>\n
“`python
\nmemoryview(obj)
\n“`<\/p>\n
– `obj`\uff1a\u5fc5\u9808\u662f\u652f\u6301\u7de9\u885d\u5340\u5354\u8b70\u7684\u5c0d\u8c61\uff0c\u4f8b\u5982 byte\u3001bytearray \u7b49\u3002<\/p>\n
### \u5be6\u4f5c\u7bc4\u4f8b<\/p>\n
\u4e0b\u9762\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u6f14\u793a\u5982\u4f55\u4f7f\u7528 `memoryview` \u4f86\u64cd\u4f5c\u5b57\u4e32\uff1a<\/p>\n
“`python
\n# \u5b9a\u7fa9\u4e00\u500b\u5b57\u4e32
\nmy_str = b”Hello World!”<\/p>\n
# \u5275\u5efa memoryview \u5c0d\u8c61
\nmv = memoryview(my_str)<\/p>\n
# \u8f38\u51fa\u7de9\u885d\u5340\u7684\u5167\u5bb9
\nprint(mv.tobytes()) # \u8f38\u51fa: b’Hello World!’
\n“`<\/p>\n
\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\uff0c\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n
“`
\nb’Hello World!’
\n“`<\/p>\n
### \u7de8\u78bc\u8207\u89e3\u78bc\u64cd\u4f5c<\/p>\n
`memoryview` \u4e5f\u53ef\u4ee5\u7528\u4f86\u5c0d\u5b57\u4e32\u9032\u884c\u7de8\u78bc\u548c\u89e3\u78bc\u64cd\u4f5c\uff0c\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
“`python
\n# \u5b9a\u7fa9\u4e00\u500b\u5b57\u4e32
\nmy_str = b”Hello World!”<\/p>\n
# \u5275\u5efa memoryview \u5c0d\u8c61
\nmv = memoryview(my_str)<\/p>\n
# \u5c0d\u7de9\u885d\u5340\u9032\u884c\u7de8\u78bc
\nencoded_buf = mv.tobytes().decode(‘utf-8’)<\/p>\n
# \u8f38\u51fa\u7de8\u78bc\u5f8c\u7684\u5167\u5bb9
\nprint(encoded_buf) # \u8f38\u51fa: Hello World!
\n“`<\/p>\n
\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\uff0c\u8f38\u51fa\u7d50\u679c\u5982\u4e0b\uff1a<\/p>\n
“`
\nHello World!
\n“`<\/p>\n
### \u932f\u8aa4\u6392\u9664<\/p>\n
\u5728\u4f7f\u7528 `memoryview` \u6642\uff0c\u8acb\u78ba\u4fdd\u60a8\u7684\u5c0d\u8c61\u652f\u6301\u7de9\u885d\u5340\u5354\u8b70\u3002\u5982\u679c\u60a8\u5617\u8a66\u5c0d\u4e0d\u652f\u6301\u7684\u5c0d\u8c61\u4f7f\u7528 `memoryview`\uff0c\u5c07\u6703\u5f15\u767c `TypeError`\u3002<\/p>\n
## \u5ef6\u4f38\u61c9\u7528<\/p>\n
`memoryview` \u5728\u8655\u7406\u5927\u578b\u6578\u64da\u96c6\u548c\u4e8c\u9032\u5236\u6578\u64da\u6642\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u6642\u3002\u4f8b\u5982\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f86\u8655\u7406\u5716\u50cf\u6578\u64da\u3001\u97f3\u983b\u6d41\u7b49\u3002<\/p>\n
## \u5c0f\u7d50<\/p>\n
\u672c\u6587\u4ecb\u7d39\u4e86 Python \u4e2d\u7684 `memoryview`\uff0c\u4f5c\u70ba `buffer()` \u7684\u66ff\u4ee3\u65b9\u6848\uff0c\u5b83\u53ef\u4ee5\u9ad8\u6548\u5730\u8655\u7406\u53ef\u8b8a\u9577\u5ea6\u7684\u5b57\u4e32\uff0c\u4e26\u4e14\u652f\u6301\u7de8\u78bc\u548c\u89e3\u78bc\u64cd\u4f5c\u3002\u9019\u5c0d\u65bc\u5b57\u4e32\u7684\u8655\u7406\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u9ad8\u6548\u5167\u5b58\u7ba1\u7406\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u5b78\u7fd2 Python \u7684\u5404\u7a2e\u529f\u80fd\uff0c\u60a8\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7\u6587\u7ae0 [Python \u6559\u5b78\u6587\u7ae0](https:\/\/vocus.cc\/article\/5f9b6c0ffdc4f3e2f7c6e6c1)\uff0c\u9019\u88e1\u6709\u66f4\u591a\u7684\u5be6\u7528\u6559\u5b78\u548c\u7bc4\u4f8b\u3002<\/p>\n
## Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: buffer() \u51fd\u5f0f\u9084\u80fd\u7528\u55ce\uff1f**
\nA1: \u5728 Python 3.x \u4e2d\uff0c`buffer()` \u51fd\u5f0f\u5df2\u7d93\u88ab\u6dd8\u6c70\uff0c\u5efa\u8b70\u4f7f\u7528 `memoryview` \u4f86\u66ff\u4ee3\u3002<\/p>\n
**Q2: \u5982\u4f55\u8655\u7406\u7de8\u78bc\u932f\u8aa4\uff1f**
\nA2: \u7576\u9032\u884c\u7de8\u78bc\u6216\u89e3\u78bc\u6642\uff0c\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u7de8\u78bc\u683c\u5f0f\uff0c\u4e26\u6aa2\u67e5\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u4ee5\u9632\u6b62\u51fa\u73fe\u932f\u8aa4\u3002<\/p>\n
**Q3: memoryview \u652f\u6301\u54ea\u4e9b\u5c0d\u8c61\uff1f**
\nA3: `memoryview` \u652f\u6301\u7684\u5c0d\u8c61\u5305\u62ec `bytes`\u3001`bytearray` \u548c\u4efb\u4f55\u652f\u6301\u7de9\u885d\u5340\u5354\u8b70\u7684\u5c0d\u8c61\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3Python\u4e2d\u7684Buffer\u529f\u80fd\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Buffer\u4f86\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6548\u7387\uff0c\u4e26\u77ad\u89e3Buffer\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-3378","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-Su","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3378","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=3378"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3378\/revisions"}],"predecessor-version":[{"id":3379,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3378\/revisions\/3379"}],"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=3378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}