{"id":7627,"date":"2021-07-08T12:54:35","date_gmt":"2021-07-08T04:54:35","guid":{"rendered":"https:\/\/kyle.ai\/blog\/?p=7627"},"modified":"2021-07-08T12:54:35","modified_gmt":"2021-07-08T04:54:35","slug":"1234-%ef%bc%8c%e7%ad%89%e4%ba%8e%e8%b4%9f%e5%8d%81%e4%ba%8c%e5%88%86%e4%b9%8b%e4%b8%80","status":"publish","type":"post","link":"https:\/\/kyle.ai\/blog\/7627.html","title":{"rendered":"1+2+3+4+&#8230;\uff0c\u7b49\u4e8e\u8d1f\u5341\u4e8c\u5206\u4e4b\u4e00"},"content":{"rendered":"<p>\u5148\u6765\u770b\u7ed3\u8bba\uff1a<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/kyle.ai\/blog\/wp-content\/uploads\/2021\/07\/12_1.svg\" alt=\"\" \/><\/p>\n<p>\u8fd9\u4e2a\u7ed3\u8bba\u88ab\u591a\u4f4d\u6570\u5b66\u5927\u5e08\u53d1\u73b0\uff1a<\/p>\n<ul>\n<li>\u6700\u65e9\u7531\u5927\u6570\u5b66\u5bb6\u6b27\u62c9\u53d1\u73b0\uff0c\u5e76\u8bb0\u5f55\u5728\u4ed6\u7684\u624b\u7a3f\u5f53\u4e2d\u3002<\/li>\n<li>\u6570\u5b66\u5bb6\u9ece\u66fc\u63d0\u51fa\u5927\u540d\u9f0e\u9f0e\u7684\u9ece\u66fc\u51fd\u6570\uff0c\u800c \u201c\u5168\u4f53\u81ea\u7136\u6570\u4e4b\u548c\u7b49\u4e8e -1\/12\u201d \u6b63\u662f\u9ece\u66fc\u51fd\u6570\u81ea\u53d8\u91cf\u53d6 -1 \u7684\u7ed3\u679c\u3002<\/li>\n<li>\u5370\u5ea6\u6570\u5b66\u5bb6\u62c9\u9a6c\u52aa\u91d1\u5b9a\u4e49 \u201c\u62c9\u9a6c\u52aa\u91d1\u548c\u201d\uff0c\u6839\u636e \u201c\u62c9\u9a6c\u52aa\u91d1\u548c\u201d \u4e5f\u53ef\u4ee5\u5f97\u51fa \u201c\u5168\u4f53\u81ea\u7136\u6570\u4e4b\u548c\u7b49\u4e8e -1\/12\u201d \u7684\u7ed3\u8bba\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e2a\u516c\u5f0f\u5728\u7269\u7406\u5b66\u4e2d\u6709\u5b9e\u9645\u7684\u5e94\u7528\uff0c\u5728\u9ed1\u6d1e\u8ba1\u7b97\u3001\u91cf\u5b50\u529b\u5b66\u3001\u8d85\u5f26\u7406\u8bba\u4e2d\u90fd\u6709\u4f7f\u7528\u5230\u3002\u8d85\u5f26\u7406\u8bba\u7b97\u51fa\u4e86\u6211\u4eec\u7684\u5b87\u5b99\u6709\u5341\u4e00\u4e2a\u7ef4\u5ea6\uff0c\u800c\u8981\u5f97\u51fa\u5341\u4e00\u7ef4\u7a7a\u95f4\u8fd9\u4e2a\u7ed3\u8bba\uff0c\u5c31\u5fc5\u987b\u4f9d\u9760\u8fd9\u4e2a\u7b49\u5f0f\u3002<\/p>\n<h2>\u8bc1\u660e\u65b9\u6cd5<\/h2>\n<p>\u4e25\u8c28\u7684\u6570\u5b66\u8bc1\u660e\u65b9\u6cd5\u6bd4\u8f83\u6df1\u5965\uff0c\u53ef\u53c2\u8003<a class=\"wp-editor-md-post-content-link\" href=\"https:\/\/zhuanlan.zhihu.com\/p\/35397224\">\u77e5\u4e4e\u4e0a\u7684\u6587\u7ae0<\/a> \u3002<\/p>\n<p>\u8fd9\u91cc\u8bb0\u5f55\u4e00\u4e0b\u53e6\u4e00\u79cd\u5de7\u5999\u7684\u8bc1\u660e\u65b9\u5f0f\u3002<\/p>\n<p>\u4ee4<\/p>\n<ul>\n<li>S = 1+2+3+4+5+6+\u2026\u2026<\/li>\n<li>S1 = 1-1+1-1+1-1+\u2026\u2026<\/li>\n<\/ul>\n<p>\u4e8e\u662f<\/p>\n<p>1-S1 = 1-1+1-1+1-1+\u2026\u2026 = S1<\/p>\n<p>S1 = 1\/2<\/p>\n<p>\u518d\u4ee4<\/p>\n<ul>\n<li>S2 = 1-2+3-4+5-6+7-\u2026\u2026<\/li>\n<\/ul>\n<p>2 * S2 =\uff081-2+3-4+5-6+7-\u2026\u2026\uff09+\uff080+1-2+3-4+5-6+7-\u2026\u2026\uff09<br \/>\n=  1-1+1-1+1-1+\u2026\u2026 = S1<\/p>\n<p>\u4e8e\u662f<\/p>\n<p>S2 = 1\/2 * S1 = 1\/4<\/p>\n<p>S-S2 =\uff081+2+3+4+5+6+\u2026\u2026\uff09-\uff081-2+3-4+5-6+7-\u2026\u2026\uff09<br \/>\n= 0+4+0+8+0+12+0+\u2026\u2026<br \/>\n= 4 &#42;\uff081+2+3+4+5+6+\u2026\u2026\uff09<br \/>\n= 4S<\/p>\n<p>\u4e8e\u662f<\/p>\n<p>S =\uff08-1\/3\uff09S2 = -1\/12<\/p>\n<p>\u5373\u662f 1+2+3+4+5+6+\u2026\u2026 = -1\/12<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5148\u6765\u770b\u7ed3\u8bba\uff1a \u8fd9\u4e2a\u7ed3\u8bba\u88ab\u591a\u4f4d\u6570\u5b66\u5927\u5e08\u53d1\u73b0\uff1a \u6700\u65e9\u7531\u5927\u6570\u5b66\u5bb6\u6b27\u62c9\u53d1\u73b0\uff0c\u5e76\u8bb0\u5f55\u5728\u4ed6\u7684\u624b\u7a3f\u5f53\u4e2d\u3002 \u6570\u5b66\u5bb6\u9ece\u66fc\u63d0\u51fa\u5927\u540d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-7627","post","type-post","status-publish","format-standard","hentry","category-skill"],"_links":{"self":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/7627","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/comments?post=7627"}],"version-history":[{"count":1,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/7627\/revisions"}],"predecessor-version":[{"id":7629,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/posts\/7627\/revisions\/7629"}],"wp:attachment":[{"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/media?parent=7627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/categories?post=7627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kyle.ai\/blog\/wp-json\/wp\/v2\/tags?post=7627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}