{"id":1388,"date":"2017-09-18T14:25:57","date_gmt":"2017-09-18T06:25:57","guid":{"rendered":"http:\/\/www.xuehelp.cn\/?p=1388"},"modified":"2017-09-18T14:25:57","modified_gmt":"2017-09-18T06:25:57","slug":"%e6%95%b0%e5%ad%a6%e7%82%b9%e9%98%b5%e9%97%ae%e9%a2%98%e8%ae%b0%e5%bf%86%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.xuehelp.cn\/index.php\/archives\/1388","title":{"rendered":"\u6570\u5b66\u70b9\u9635\u95ee\u9898\u8bb0\u5fc6\u65b9\u6cd5"},"content":{"rendered":"<p>\u4e09\u89d2\u70b9\u9635\u4e2d\uff0c\u4ece\u4e0a\u5f80\u4e0b\u6709\u65e0\u6570\u591a\u884c\uff0c\u5176\u4e2d\u7b2c\u4e00\u884c\u6709\u000b1 \u4e2a\u70b9\uff0c\u7b2c\u4e8c\u884c\u6709 2 \u4e2a\u70b9\u2026\u2026\u7b2c n \u884c\u6709 n \u4e2a\u70b9\u2026\u2026<\/p>\n<p>\u8bbe \u00a01+2+&#8230;+n=S<\/p>\n<p>n+(n-1)+&#8230;+1=S<!--more--><\/p>\n<p>\u7531\u4e24\u5f0f\u76f8\u52a0 \u00a02S=(n+1)n \u00a0 S=(n+1)n\/2<\/p>\n<p>\u60f3\u5230\u4e86\u4ec0\u4e48\uff0c\u6ca1\u9519\u5c31\u662f\u68af\u5f62\u9762\u79ef\u516c\u5f0f<\/p>\n<p>S=(\u4e0a\u5e95+\u4e0b\u5e95)*\u9ad8\/2<\/p>\n<p>\u7b49\u5dee\u6570\u5217\u524dn\u9879\u548cS=(\u9996\u9879+\u672b\u9879)*\u9879\u6570\/2<\/p>\n<p>\u6570\u5b66\u6709\u60ca\u4eba\u7684\u76f8\u4f3c\uff0c\u4e0d\u662f\u5417\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e09\u89d2\u70b9\u9635\u4e2d\uff0c\u4ece\u4e0a\u5f80\u4e0b\u6709\u65e0\u6570\u591a\u884c\uff0c\u5176\u4e2d\u7b2c\u4e00\u884c\u6709\u000b1 \u4e2a\u70b9\uff0c\u7b2c\u4e8c\u884c\u6709 2 \u4e2a\u70b9\u2026\u2026\u7b2c n \u884c\u6709 n \u4e2a\u70b9\u2026\u2026 \u8bbe  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[487],"_links":{"self":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1388"}],"collection":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1388"}],"version-history":[{"count":1,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1388\/revisions"}],"predecessor-version":[{"id":1389,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/posts\/1388\/revisions\/1389"}],"wp:attachment":[{"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1388"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1388"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xuehelp.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1388"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}