<\/p>\n
\u5728 Python \u4e2d\uff0c`hash()` \u51fd\u5f0f\u662f\u4e00\u500b\u5f37\u5927\u4e14\u6709\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5c07\u4efb\u4f55\u53ef\u54c8\u5e0c\u7684\u7269\u4ef6\u8f49\u63db\u70ba\u4e00\u500b\u6574\u6578\uff0c\u9019\u500b\u6574\u6578\u901a\u5e38\u7528\u65bc\u8868\u793a\u8a72\u7269\u4ef6\u7684\u552f\u4e00\u6027\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u4ecb\u7d39 `hash()` \u51fd\u5f0f\u7684\u7528\u6cd5\u3001\u5be6\u4f5c\u7bc4\u4f8b\u3001\u932f\u8aa4\u6392\u9664\u65b9\u6cd5\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u5ef6\u4f38\u3002<\/p>\n
## hash() \u51fd\u5f0f\u7684\u57fa\u672c\u6982\u5ff5<\/p>\n
`hash()` \u51fd\u5f0f\u80fd\u5c0d\u591a\u7a2e\u985e\u578b\u7684\u7269\u4ef6\u9032\u884c\u64cd\u4f5c\uff0c\u5305\u62ec\u5b57\u4e32\u3001\u6578\u5b57\u3001\u5217\u8868\u3001\u5b57\u5178\u7b49\u3002\u5b83\u7684\u4e3b\u8981\u529f\u80fd\u662f\u751f\u6210\u4e00\u500b\u6574\u6578\uff0c\u9019\u500b\u6574\u6578\u53ef\u4ee5\u7528\u4f86\u5feb\u901f\u6bd4\u8f03\u7269\u4ef6\u6216\u7528\u65bc\u6578\u64da\u7d50\u69cb\u4e2d\u7684\u641c\u5c0b\u3002<\/p>\n
### \u57fa\u672c\u7bc4\u4f8b<\/p>\n
\u4ee5\u4e0b\u7bc4\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 `hash()` \u51fd\u5f0f\u4f86\u6bd4\u8f03\u5169\u500b\u5b57\u4e32\uff1a<\/p>\n
“`python
\nstr1 = “Hello World”
\nstr2 = “Hello World”<\/p>\n
# \u5c07\u5169\u500b\u5b57\u4e32\u8f49\u63db\u70ba\u6574\u6578
\nhash1 = hash(str1)
\nhash2 = hash(str2)<\/p>\n
# \u6bd4\u8f03\u5169\u500b\u6574\u6578
\nif hash1 == hash2:
\n print(“\u5169\u500b\u5b57\u4e32\u76f8\u540c”)
\nelse:
\n print(“\u5169\u500b\u5b57\u4e32\u4e0d\u540c”)
\n“`<\/p>\n
\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u5169\u500b\u76f8\u540c\u7684\u5b57\u4e32\u6703\u7522\u751f\u76f8\u540c\u7684 hash \u503c\uff0c\u5f9e\u800c\u78ba\u5b9a\u5b83\u5011\u76f8\u7b49\u3002<\/p>\n
## \u4f7f\u7528 hash() \u9032\u884c\u5feb\u901f\u641c\u5c0b<\/p>\n
`hash()` \u51fd\u5f0f\u53ef\u7528\u65bc\u63d0\u9ad8\u641c\u5c0b\u6548\u7387\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5728\u5217\u8868\u4e2d\u641c\u5c0b\u7279\u5b9a\u7269\u4ef6\u7684\u7bc4\u4f8b\uff1a<\/p>\n
“`python
\n# \u5efa\u7acb\u4e00\u500b\u5217\u8868
\nmy_list = [1, 2, 3, 4, 5]\n
# \u5c07\u76ee\u6a19\u7269\u4ef6\u8f49\u63db\u70ba\u6574\u6578
\ntarget = 3
\ntarget_hash = hash(target)<\/p>\n
# \u641c\u5c0b\u8a72\u6574\u6578
\nfor item in my_list:
\n if hash(item) == target_hash:
\n print(“\u627e\u5230\u4e86\u7269\u4ef6”)
\n break
\nelse:
\n print(“\u7269\u4ef6\u672a\u627e\u5230”)
\n“`<\/p>\n
\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u5229\u7528 `hash()` \u51fd\u5f0f\u5728\u5217\u8868\u4e2d\u5feb\u901f\u627e\u51fa\u7279\u5b9a\u5143\u7d20\uff0c\u907f\u514d\u9010\u4e00\u6bd4\u5c0d\u7269\u4ef6\u7684\u5167\u5bb9\u3002<\/p>\n
## \u932f\u8aa4\u6392\u9664<\/p>\n
\u5728\u4f7f\u7528 `hash()` \u51fd\u5f0f\u6642\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\uff1a<\/p>\n
1. **\u4e0d\u53ef\u54c8\u5e0c\u7269\u4ef6**\uff1a\u67d0\u4e9b\u7269\u4ef6\u5982\u5217\u8868\u548c\u5b57\u5178\u662f\u4e0d\u53ef\u54c8\u5e0c\u7684\uff0c\u56e0\u70ba\u5b83\u5011\u662f\u53ef\u8b8a\u7684\u3002\u8acb\u78ba\u4fdd\u4f7f\u7528\u7684\u7269\u4ef6\u662f\u4e0d\u53ef\u8b8a\u7684\uff0c\u4f8b\u5982\u5b57\u4e32\u3001\u5143\u7d44\u6216\u6574\u6578\u3002<\/p>\n
2. **Python \u7248\u672c\u5dee\u7570**\uff1a\u4e0d\u540c\u7248\u672c\u7684 Python \u53ef\u80fd\u5c0d\u67d0\u4e9b\u8cc7\u6599\u985e\u578b\u7684 hash \u503c\u8a08\u7b97\u6709\u6240\u4e0d\u540c\u3002\u8acb\u78ba\u4fdd\u5728\u76f8\u540c\u7684\u74b0\u5883\u4e0b\u9032\u884c\u6bd4\u8f03\u3002<\/p>\n
## \u5ef6\u4f38\u61c9\u7528<\/p>\n
`hash()` \u51fd\u5f0f\u5728\u8a31\u591a\u8cc7\u6599\u7d50\u69cb\u4e2d\u5177\u6709\u91cd\u8981\u7684\u89d2\u8272\uff0c\u4f8b\u5982\u96c6\u5408\uff08set\uff09\u548c\u5b57\u5178\uff08dict\uff09\u3002\u9019\u4e9b\u8cc7\u6599\u7d50\u69cb\u5229\u7528 hash \u503c\u4f86\u5be6\u73fe\u9ad8\u6548\u7684\u67e5\u627e\u3001\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n
## \u7d50\u8ad6<\/p>\n
\u7e3d\u7d50\u4f86\u8aaa\uff0c`hash()` \u51fd\u5f0f\u5728 Python \u4e2d\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u65bc\u7269\u4ef6\u6bd4\u8f03\u3001\u5feb\u901f\u641c\u5c0b\u53ca\u5728\u8cc7\u6599\u7d50\u69cb\u4e2d\u63d0\u9ad8\u6548\u7387\u3002\u638c\u63e1\u5176\u4f7f\u7528\u65b9\u6cd5\uff0c\u5c07\u80fd\u5927\u5e45\u63d0\u5347\u4f60\u7684 Python \u7a0b\u5f0f\u8a2d\u8a08\u80fd\u529b\u3002\u82e5\u60f3\u6df1\u5165\u4e86\u89e3 Python \u7684\u5176\u4ed6\u6280\u5de7\uff0c\u6b61\u8fce\u53c3\u8003 [\u9019\u88e1\u7684\u66f4\u591a\u6559\u5b78](https:\/\/vocus.cc)\uff01<\/p>\n
## \u5e38\u898b\u554f\u984c\u89e3\u7b54\uff08Q&A\uff09<\/p>\n
**Q1: hash() \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u6240\u6709\u8cc7\u6599\u985e\u578b\u55ce\uff1f**
\nA1: \u4e0d\u53ef\u4ee5\u3002`hash()` \u51fd\u5f0f\u53ea\u80fd\u7528\u65bc\u4e0d\u53ef\u8b8a\u7269\u4ef6\uff0c\u5982\u5b57\u4e32\u3001\u5143\u7d44\u548c\u6574\u6578\uff0c\u800c\u4e0d\u53ef\u7528\u65bc\u53ef\u8b8a\u7269\u4ef6\u5982\u5217\u8868\u548c\u5b57\u5178\u3002<\/p>\n
**Q2: hash() \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u662f\u5426\u6703\u96a8\u8457 Python \u7248\u672c\u6539\u8b8a\u800c\u6539\u8b8a\uff1f**
\nA2: \u662f\u7684\uff0c`hash()` \u51fd\u5f0f\u7684\u8fd4\u56de\u503c\u5728\u4e0d\u540c\u7248\u672c\u7684 Python \u4e2d\u53ef\u80fd\u6703\u6709\u6240\u4e0d\u540c\uff0c\u56e0\u6b64\u5728\u4e0d\u540c\u74b0\u5883\u4e2d\u6bd4\u8f03 hash \u503c\u6642\u9700\u8981\u5c0f\u5fc3\u3002<\/p>\n
**Q3: \u5982\u4f55\u8655\u7406\u540c\u4e00\u7269\u4ef6\u5728\u4e0d\u540c\u57f7\u884c\u4e2d\u7684 hash \u503c\u8b8a\u5316\uff1f**
\nA3: Python 3.x \u4e2d\uff0c\u5c0d\u65bc\u5b57\u7b26\u4e32\u548c\u5176\u4ed6\u985e\u578b\uff0chash \u503c\u5728\u4e0d\u540c\u57f7\u884c\u4e2d\u662f\u96a8\u6a5f\u7684\u3002\u82e5\u9700\u8981\u6301\u4e45\u5316\u7684 hash \u503c\uff0c\u5efa\u8b70\u4f7f\u7528\u5176\u4ed6\u65b9\u6cd5\uff08\u4f8b\u5982\uff0c\u4f7f\u7528\u56fa\u5b9a\u7684\u6f14\u7b97\u6cd5\u5982 SHA256\uff09\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\u5bc6\u548c\u89e3\u5bc6\u8cc7\u6599\u3002GoogleSEO\u539f\u5247\u53ef\u4ee5\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u641c\u7d22\u548c\u767c\u73fe\u60a8\u7684\u7db2\u7ad9\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-3048","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-Na","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3048","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=3048"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3048\/revisions"}],"predecessor-version":[{"id":3049,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3048\/revisions\/3049"}],"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=3048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}