{"id":203965,"date":"2025-05-22T08:46:16","date_gmt":"2025-05-22T00:46:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203965\/"},"modified":"2025-05-22T08:46:16","modified_gmt":"2025-05-22T00:46:16","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88%e6%95%b4%e5%9e%8b%e5%8f%98%e9%87%8f%e7%9a%84%e6%9c%80%e5%b0%8f%e8%b4%9f%e6%95%b0%e7%9a%84%e7%bb%9d%e5%af%b9%e5%80%bc%e6%af%94%e6%9c%80%e5%a4%a7%e6%ad%a3%e6%95%b0%e5%a4%a7-1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203965\/","title":{"rendered":"\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1\uff1f<\/h1>\n

\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300a\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6587\u7ae0<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n

<\/p>\n

2020-12-20\uff1a\u4e3a\u4ec0\u4e48\u6700\u5c0f\u8d1f\u6570\u548c\u6700\u5927\u6b63\u6570\u4e4b\u5dee\u4e3a 1<\/strong><\/p>\n

\u95ee\u9898\uff1a<\/strong>\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1\uff1f<\/p>\n

\u7b54\u6848\uff1a<\/strong>0 \u662f\u4ecb\u4e8e\u6700\u5c0f\u8d1f\u6570\u548c\u6700\u5927\u6b63\u6570\u4e4b\u95f4\u7684\u4e2d\u95f4\u70b9\u3002<\/p>\n

\u5728\u8ba1\u7b97\u673a\u4e2d\uff0c\u6574\u578b\u53d8\u91cf\u4f7f\u7528\u6709\u7b26\u53f7\u4e8c\u8fdb\u5236\u8868\u793a\u6cd5\u5b58\u50a8\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u65e2\u53ef\u4ee5\u5305\u542b\u6b63\u6570\uff0c\u4e5f\u53ef\u4ee5\u5305\u542b\u8d1f\u6570\u3002\u6b63\u6570\u4ee5\u6b63\u4e8c\u8fdb\u5236\u4f4d\u8868\u793a\uff0c\u800c\u8d1f\u6570\u4ee5\u8d1f\u4e8c\u8fdb\u5236\u4f4d\u8868\u793a\u3002<\/p>\n

\u6574\u578b\u53d8\u91cf\u53ef\u8868\u793a\u7684\u6700\u5c0f\u8d1f\u6570\u662f -2^(n-1)\uff0c\u5176\u4e2d n \u662f\u53d8\u91cf\u7684\u4f4d\u6570\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a 32 \u4f4d\u7684\u6574\u578b\u53d8\u91cf\uff0c\u6700\u5c0f\u8d1f\u6570\u4e3a -2^(32-1) = -2^31\u3002<\/p>\n

\u6574\u578b\u53d8\u91cf\u53ef\u8868\u793a\u7684\u6700\u5927\u6b63\u6570\u662f 2^(n-1) – 1\u3002\u5bf9\u4e8e 32 \u4f4d\u7684\u6574\u578b\u53d8\u91cf\uff0c\u6700\u5927\u6b63\u6570\u4e3a 2^(32-1) – 1 = 2^31 – 1\u3002<\/p>\n

\u4ece 0 \u5f00\u59cb\u8ba1\u6570\uff0c\u6b63\u6570\u548c\u8d1f\u6570\u7684\u8303\u56f4\u5927\u5c0f\u76f8\u540c\uff0c\u4e3a 2^(n-1)\u3002\u4e0d\u8fc7\uff0c\u7531\u4e8e 0 \u672c\u8eab\u4e5f\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u56e0\u6b64\u6b63\u6570\u548c\u8d1f\u6570\u7684\u603b\u6570\u4e3a 2^(n-1) + 1\u3002<\/p>\n

\u56e0\u6b64\uff0c\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1 \u662f\u56e0\u4e3a 0 \u4f5c\u4e3a\u4e2d\u70b9\u5c06\u6b63\u6570\u548c\u8d1f\u6570\u8303\u56f4\u5206\u9694\u5f00\u3002<\/p>\n

\u4eca\u5929\u5173\u4e8e\u300a\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c\u6bd4\u6700\u5927\u6b63\u6570\u5927 1\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e3a\u4ec0\u4e48\u6574\u578b\u53d8\u91cf\u7684\u6700\u5c0f\u8d1f\u6570\u7684\u7edd\u5bf9\u503c...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203965","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203965","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203965"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203965\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203965"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203965"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203965"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}