{"id":185874,"date":"2024-11-11T01:13:18","date_gmt":"2024-11-10T17:13:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185874\/"},"modified":"2024-11-11T01:13:19","modified_gmt":"2024-11-10T17:13:19","slug":"%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b%ef%bc%9a%e8%bb%9f%e4%bb%b6%e7%b3%bb%e7%b5%b1%e6%a0%b8%e5%bf%83%e9%83%a8%e4%bb%b6%e5%93%88%e5%b8%8c%e8%a1%a8%ef%bc%8c%e5%85%a7%e5%ad%98%e5%a6%82%e4%bd%95%e4%bd%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185874\/","title":{"rendered":"\u6578\u64da\u7d50\u69cb\uff1a\u8edf\u4ef6\u7cfb\u7d71\u6838\u5fc3\u90e8\u4ef6\u54c8\u5e0c\u8868\uff0c\u5167\u5b58\u5982\u4f55\u4f48\u5c40\uff1f"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b%ef%bc%9a%e8%bb%9f%e4%bb%b6%e7%b3%bb%e7%b5%b1%e6%a0%b8%e5%bf%83%e9%83%a8%e4%bb%b6%e5%93%88%e5%b8%8c%e8%a1%a8%ef%bc%8c%e5%85%a7%e5%ad%98%e5%a6%82%e4%bd%95%e4%bd%88-zogqVaBdgz\">\u6578\u64da\u7d50\u69cb\uff1a\u8edf\u4ef6\u7cfb\u7d71\u6838\u5fc3\u90e8\u4ef6\u54c8\u5e0c\u8868\uff0c\u5167\u5b58\u5982\u4f55\u4f48\u5c40\uff1f<\/h1>\n<p>\u5728\u73fe\u4ee3\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u7d50\u69cb\u7684\u9078\u64c7\u5c0d\u65bc\u7cfb\u7d71\u6027\u80fd\u548c\u6548\u7387\u81f3\u95dc\u91cd\u8981\u3002\u5176\u4e2d\uff0c\u54c8\u5e0c\u8868\uff08Hash Table\uff09\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5982\u6578\u64da\u5eab\u7d22\u5f15\u3001\u7de9\u5b58\u7cfb\u7d71\u548c\u67e5\u627e\u64cd\u4f5c\u7b49\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u54c8\u5e0c\u8868\u7684\u57fa\u672c\u539f\u7406\u3001\u5167\u5b58\u4f48\u5c40\u4ee5\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e5%93%88%e5%b8%8c%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e5%8e%9f%e7%90%86-zogqVaBdgz\">\u54c8\u5e0c\u8868\u7684\u57fa\u672c\u539f\u7406<\/h2>\n<p>\u54c8\u5e0c\u8868\u662f\u4e00\u7a2e\u57fa\u65bc\u9375\u503c\u5c0d\uff08key-value pair\uff09\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u904e\u54c8\u5e0c\u51fd\u6578\u5c07\u9375\u6620\u5c04\u5230\u4e00\u500b\u56fa\u5b9a\u5927\u5c0f\u7684\u6578\u7d44\u4e2d\u3002\u9019\u6a23\u7684\u8a2d\u8a08\u4f7f\u5f97\u67e5\u627e\u3001\u63d2\u5165\u548c\u522a\u9664\u64cd\u4f5c\u7684\u5e73\u5747\u6642\u9593\u8907\u96dc\u5ea6\u70baO(1)\uff0c\u9019\u662f\u5176\u4e3b\u8981\u512a\u52e2\u4e4b\u4e00\u3002<\/p>\n<p>\u54c8\u5e0c\u8868\u7684\u5de5\u4f5c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u7576\u63d2\u5165\u4e00\u500b\u9375\u503c\u5c0d\u6642\uff0c\u54c8\u5e0c\u51fd\u6578\u8a08\u7b97\u51fa\u9375\u7684\u54c8\u5e0c\u503c\uff0c\u4e26\u5c07\u5176\u6620\u5c04\u5230\u6578\u7d44\u7684\u7d22\u5f15\u4f4d\u7f6e\u3002<\/li>\n<li>\u5982\u679c\u8a72\u4f4d\u7f6e\u5df2\u7d93\u88ab\u4f54\u7528\uff0c\u5247\u6703\u767c\u751f\u78b0\u649e\uff08collision\uff09\uff0c\u6b64\u6642\u9700\u8981\u63a1\u7528\u67d0\u7a2e\u78b0\u649e\u89e3\u6c7a\u7b56\u7565\uff0c\u5982\u93c8\u63a5\u6cd5\uff08chaining\uff09\u6216\u958b\u653e\u5730\u5740\u6cd5\uff08open addressing\uff09\u3002<\/li>\n<li>\u67e5\u627e\u64cd\u4f5c\u540c\u6a23\u901a\u904e\u54c8\u5e0c\u51fd\u6578\u8a08\u7b97\u7d22\u5f15\uff0c\u7136\u5f8c\u6aa2\u67e5\u8a72\u4f4d\u7f6e\u7684\u503c\uff0c\u82e5\u767c\u751f\u78b0\u649e\u5247\u9700\u8981\u904d\u6b77\u93c8\u8868\u6216\u63a2\u67e5\u5176\u4ed6\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%85%a7%e5%ad%98%e4%bd%88%e5%b1%80-zogqVaBdgz\">\u5167\u5b58\u4f48\u5c40<\/h2>\n<p>\u54c8\u5e0c\u8868\u7684\u5167\u5b58\u4f48\u5c40\u4e3b\u8981\u7531\u5169\u90e8\u5206\u7d44\u6210\uff1a\u6578\u7d44\u548c\u93c8\u8868\uff08\u6216\u5176\u4ed6\u78b0\u649e\u89e3\u6c7a\u7d50\u69cb\uff09\u3002\u4ee5\u4e0b\u662f\u54c8\u5e0c\u8868\u7684\u5167\u5b58\u4f48\u5c40\u793a\u610f\uff1a<\/p>\n<pre>\n+-------------------+\n|   Hash Table      |\n+-------------------+\n| Index 0 | Value A |\n| Index 1 | Value B |\n| Index 2 | Value C |\n| Index 3 | Value D |\n| Index 4 | Value E |\n| Index 5 | Value F |\n| Index 6 | Value G |\n| Index 7 | Value H |\n+-------------------+\n<\/pre>\n<p>\u5728\u9019\u500b\u793a\u610f\u5716\u4e2d\uff0c\u6bcf\u500b\u7d22\u5f15\u4f4d\u7f6e\u53ef\u4ee5\u5b58\u5132\u4e00\u500b\u503c\u3002\u5982\u679c\u767c\u751f\u78b0\u649e\uff0c\u5247\u53ef\u4ee5\u5728\u8a72\u4f4d\u7f6e\u4f7f\u7528\u93c8\u8868\u4f86\u5b58\u5132\u591a\u500b\u503c\uff1a<\/p>\n<pre>\nIndex 0: Value A -&gt; Value X -&gt; Value Y\nIndex 1: Value B\nIndex 2: Value C\n...\n<\/pre>\n<h2 id=\"%e5%93%88%e5%b8%8c%e8%a1%a8%e7%9a%84%e5%84%aa%e7%bc%ba%e9%bb%9e-zogqVaBdgz\">\u54c8\u5e0c\u8868\u7684\u512a\u7f3a\u9ede<\/h2>\n<p>\u54c8\u5e0c\u8868\u7684\u512a\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5feb\u901f\u67e5\u627e\uff1a<\/strong>\u5e73\u5747\u60c5\u6cc1\u4e0b\uff0c\u67e5\u627e\u6642\u9593\u70baO(1)\u3002<\/li>\n<li><strong>\u9748\u6d3b\u6027\uff1a<\/strong>\u53ef\u4ee5\u52d5\u614b\u8abf\u6574\u5927\u5c0f\u4ee5\u9069\u61c9\u6578\u64da\u91cf\u7684\u8b8a\u5316\u3002<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c\u54c8\u5e0c\u8868\u4e5f\u5b58\u5728\u4e00\u4e9b\u7f3a\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u78b0\u649e\u554f\u984c\uff1a<\/strong>\u7576\u591a\u500b\u9375\u6620\u5c04\u5230\u540c\u4e00\u7d22\u5f15\u6642\uff0c\u6703\u5f71\u97ff\u6027\u80fd\u3002<\/li>\n<li><strong>\u5167\u5b58\u6d6a\u8cbb\uff1a<\/strong>\u70ba\u4e86\u6e1b\u5c11\u78b0\u649e\uff0c\u901a\u5e38\u9700\u8981\u5206\u914d\u6bd4\u5be6\u969b\u6578\u64da\u91cf\u66f4\u5927\u7684\u6578\u7d44\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e4%b8%ad%e7%9a%84%e5%93%88%e5%b8%8c%e8%a1%a8-zogqVaBdgz\">\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u54c8\u5e0c\u8868<\/h2>\n<p>\u54c8\u5e0c\u8868\u5728\u8a31\u591a\u61c9\u7528\u4e2d\u767c\u63ee\u8457\u91cd\u8981\u4f5c\u7528\u3002\u4f8b\u5982\uff0c\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u54c8\u5e0c\u8868\u53ef\u4ee5\u7528\u65bc\u5feb\u901f\u67e5\u627e\u8a18\u9304\uff1b\u5728\u7de9\u5b58\u7cfb\u7d71\u4e2d\uff0c\u54c8\u5e0c\u8868\u53ef\u4ee5\u7528\u65bc\u5b58\u5132\u6700\u8fd1\u4f7f\u7528\u7684\u6578\u64da\uff0c\u4ee5\u63d0\u9ad8\u8a2a\u554f\u901f\u5ea6\u3002\u6b64\u5916\uff0c\u8a31\u591a\u7de8\u7a0b\u8a9e\u8a00\u7684\u6a19\u6e96\u5eab\u4e2d\u90fd\u63d0\u4f9b\u4e86\u54c8\u5e0c\u8868\u7684\u5be6\u73fe\uff0c\u5982Python\u7684\u5b57\u5178\uff08dict\uff09\u548cJava\u7684HashMap\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-zogqVaBdgz\">\u7d50\u8ad6<\/h2>\n<p>\u54c8\u5e0c\u8868\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\uff0c\u56e0\u5176\u5feb\u901f\u7684\u67e5\u627e\u548c\u9748\u6d3b\u7684\u5167\u5b58\u4f48\u5c40\u800c\u53d7\u5230\u5ee3\u6cdb\u61c9\u7528\u3002\u96d6\u7136\u5b58\u5728\u78b0\u649e\u548c\u5167\u5b58\u6d6a\u8cbb\u7b49\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u73fe\uff0c\u9019\u4e9b\u7f3a\u9ede\u53ef\u4ee5\u5f97\u5230\u6709\u6548\u7684\u7de9\u89e3\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u7406\u89e3\u54c8\u5e0c\u8868\u7684\u5de5\u4f5c\u539f\u7406\u53ca\u5176\u5167\u5b58\u4f48\u5c40\u662f\u63d0\u5347\u7cfb\u7d71\u6027\u80fd\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">VPS<\/a> \u548c\u5176\u4ed6\u670d\u52d9\u7684\u4fe1\u606f\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u54c8\u5e0c\u8868\u5728\u6578\u64da\u7d50\u69cb\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u4e86\u89e3\u5176\u5167\u5b58\u4f48\u5c40\u53ca\u5728\u8edf\u4ef6\u7cfb\u7d71\u4e2d\u7684\u6838\u5fc3\u4f5c\u7528\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-185874","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185874","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=185874"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185874\/revisions"}],"predecessor-version":[{"id":185875,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/185874\/revisions\/185875"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=185874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=185874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=185874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}