<\/p>\n
Python \u4e2d\u7684 `hash()` \u51fd\u5f0f\u662f\u4e00\u500b\u975e\u5e38\u91cd\u8981\u7684\u5de5\u5177\uff0c\u5b83\u80fd\u5c07\u4efb\u4f55\u7269\u4ef6\u8f49\u63db\u70ba\u4e00\u500b\u6574\u6578\uff0c\u9019\u500b\u6574\u6578\u7528\u4f86\u8868\u793a\u8a72\u7269\u4ef6\u7684\u552f\u4e00\u6027\u3002`hash()` \u51fd\u5f0f\u5728\u6578\u64da\u7d50\u69cb\u4e2d\u5c24\u5176\u6709\u7528\uff0c\u4f8b\u5982\u5728\u5b57\u5178\u548c\u96c6\u5408\u4e2d\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u5feb\u901f\u5730\u9032\u884c\u641c\u5c0b\u8207\u6bd4\u8f03\u3002<\/p>\n
## hash() \u51fd\u5f0f\u7684\u57fa\u672c\u7528\u6cd5<\/p>\n
`hash()` \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u8cc7\u6599\u578b\u5225\uff0c\u5305\u62ec\u5b57\u4e32\u3001\u6578\u5b57\u3001\u5217\u8868\u3001\u5b57\u5178\u7b49\u3002\u6b64\u51fd\u5f0f\u6703\u5c07\u7269\u4ef6\u8f49\u63db\u70ba\u4e00\u500b\u6574\u6578\uff0c\u9019\u500b\u6574\u6578\u80fd\u5920\u6709\u6548\u5730\u8868\u793a\u8a72\u7269\u4ef6\u7684\u552f\u4e00\u6027\u3002<\/p>\n
### \u5be6\u4f5c\u7bc4\u4f8b<\/p>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u7bc4\uff0c\u986f\u793a\u5982\u4f55\u4f7f\u7528 `hash()` \u5c07\u5b57\u4e32\u8f49\u63db\u70ba\u6574\u6578\uff1a<\/p>\n
“`python
\nstr_value = “Hello World”
\nh = hash(str_value)
\nprint(h)
\n“`<\/p>\n
\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5f97\u5230\u4e00\u500b\u6574\u6578\uff0c\u9019\u500b\u6574\u6578\u4ee3\u8868\u4e86\u5b57\u4e32 “Hello World” \u7684\u552f\u4e00\u6027\u3002<\/p>\n
### \u4f7f\u7528 hash() \u9032\u884c\u5feb\u901f\u641c\u5c0b<\/p>\n
`hash()` \u51fd\u5f0f\u4e5f\u53ef\u4ee5\u7528\u65bc\u5feb\u901f\u641c\u5c0b\u8cc7\u6599\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u5b57\u4e32\u5217\u8868\uff0c\u4e26\u5e0c\u671b\u5feb\u901f\u627e\u5230\u7279\u5b9a\u5b57\u4e32\uff1a<\/p>\n
“`python
\nmy_list = [“Hello World”, “Foo”, “Bar”]\nh = hash(“Hello World”)
\nindex = h % len(my_list)
\nprint(my_list[index])
\n“`<\/p>\n
\u57f7\u884c\u8a72\u7a0b\u5f0f\u78bc\u5c07\u6703\u8f38\u51fa “Hello World”\uff0c\u9019\u8868\u793a\u6211\u5011\u5df2\u6210\u529f\u5730\u627e\u5230\u8a72\u5b57\u4e32\u3002<\/p>\n
## \u932f\u8aa4\u6392\u9664<\/p>\n
\u5728\u4f7f\u7528 `hash()` \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u554f\u984c\uff1a<\/p>\n
1. **\u7121\u6cd5 hash \u7684\u7269\u4ef6**\uff1a\u67d0\u4e9b\u7269\u4ef6\uff08\u5982\u5217\u8868\uff09\u662f\u4e0d\u53ef hash \u7684\uff0c\u56e0\u70ba\u5b83\u5011\u662f\u53ef\u8b8a\u7684\u3002\u8981\u89e3\u6c7a\u6b64\u554f\u984c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0d\u53ef\u8b8a\u7684\u8cc7\u6599\u7d50\u69cb\uff08\u5982\u5143\u7d44\uff09\u3002<\/p>\n
2. **\u78b0\u649e**\uff1a\u4e0d\u540c\u7684\u7269\u4ef6\u53ef\u80fd\u6703\u7522\u751f\u76f8\u540c\u7684 hash \u503c\uff0c\u9019\u7a31\u70ba\u78b0\u649e\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u5fc5\u9808\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\u4f86\u9a57\u8b49\u7269\u4ef6\u7684\u552f\u4e00\u6027\u3002<\/p>\n
## \u5ef6\u4f38\u61c9\u7528<\/p>\n
`hash()` \u51fd\u5f0f\u7684\u61c9\u7528\u4e0d\u50c5\u50c5\u5c40\u9650\u65bc\u641c\u5c0b\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\uff1a<\/p>\n
– **\u5efa\u7acb\u54c8\u5e0c\u8868**\uff1a\u5728\u8cc7\u6599\u7d50\u69cb\u4e2d\uff0c`hash()` \u5e38\u7528\u65bc\u5efa\u7acb\u54c8\u5e0c\u8868\uff0c\u63d0\u4f9b\u5feb\u901f\u7684\u5b58\u53d6\u6642\u9593\u3002
\n– **\u8cc7\u6599\u5b8c\u6574\u6027\u6aa2\u67e5**\uff1a\u53ef\u4ee5\u7528\u65bc\u6aa2\u67e5\u8cc7\u6599\u7684\u5b8c\u6574\u6027\uff0c\u901a\u904e\u6bd4\u8f03 hash \u503c\u4f86\u78ba\u4fdd\u8cc7\u6599\u672a\u88ab\u7be1\u6539\u3002<\/p>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0cPython \u4e2d\u7684 `hash()` \u51fd\u5f0f\u662f\u4e00\u500b\u5f37\u5927\u4e14\u9748\u6d3b\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5c07\u4efb\u610f\u7269\u4ef6\u8f49\u63db\u70ba\u6574\u6578\uff0c\u4e26\u5728\u8a31\u591a\u5be6\u969b\u61c9\u7528\u4e2d\u767c\u63ee\u4f5c\u7528\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5feb\u901f\u641c\u5c0b\u548c\u6bd4\u8f03\u7684\u60c5\u5883\u4e2d\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a Python \u7684\u9032\u968e\u529f\u80fd\uff0c\u60a8\u53ef\u4ee5\u53c3\u8003 [\u9019\u7bc7\u6559\u5b78\u6587\u7ae0](https:\/\/vocus.cc\/article\/5e5f1f3bfd8978000121d5aa) \u4f86\u64f4\u5c55\u60a8\u7684\u77e5\u8b58\u3002<\/p>\n
## Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: hash() \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u54ea\u4e9b\u8cc7\u6599\u578b\u5225\uff1f**
\nA1: `hash()` \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u5b57\u4e32\u3001\u6578\u5b57\u3001\u5143\u7d44\u7b49\u4e0d\u53ef\u8b8a\u8cc7\u6599\u578b\u5225\uff0c\u4f46\u7121\u6cd5\u7528\u65bc\u53ef\u8b8a\u8cc7\u6599\u578b\u5225\uff0c\u5982\u5217\u8868\u548c\u5b57\u5178\u3002<\/p>\n
**Q2: \u5982\u679c\u5169\u500b\u4e0d\u540c\u7684\u7269\u4ef6\u8fd4\u56de\u76f8\u540c\u7684 hash \u503c\uff0c\u8a72\u600e\u9ebc\u8fa6\uff1f**
\nA2: \u9019\u7a2e\u60c5\u6cc1\u7a31\u70ba hash \u78b0\u649e\uff0c\u901a\u5e38\u9700\u8981\u901a\u904e\u984d\u5916\u7684\u6aa2\u67e5\u4f86\u78ba\u5b9a\u7269\u4ef6\u7684\u552f\u4e00\u6027\u3002<\/p>\n
**Q3: hash() \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u6703\u96a8\u8457 Python \u7248\u672c\u8b8a\u5316\u55ce\uff1f**
\nA3: \u662f\u7684\uff0c`hash()` \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u5728\u4e0d\u540c\u7684 Python \u7248\u672c\u9593\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u6b64\u4e0d\u61c9\u4f9d\u8cf4 hash \u503c\u5728\u4e0d\u540c\u74b0\u5883\u9593\u7684\u4e00\u81f4\u6027\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2Python\u4e2d\u7684Hash\u51fd\u6578\uff0c\u4e86\u89e3\u5b83\u7684\u529f\u80fd\u548c\u7528\u6cd5\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u52a0\u5f37\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0ePython\u4e2d\u7684Hash\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u6709\u95dc\u5b83\u7684\u6709\u7528\u4fe1\u606f\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-3302","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-Rg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3302","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=3302"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3302\/revisions"}],"predecessor-version":[{"id":3303,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3302\/revisions\/3303"}],"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=3302"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3302"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3302"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}