{"id":1595,"date":"2023-02-28T07:31:41","date_gmt":"2023-02-28T07:31:41","guid":{"rendered":"https:\/\/www.liutianfeng.com\/?p=1595"},"modified":"2023-02-28T07:34:12","modified_gmt":"2023-02-28T07:34:12","slug":"%e6%96%b9%e6%b3%95-%e6%b1%82%e5%91%a8%e9%95%bf","status":"publish","type":"post","link":"https:\/\/www.liutianfeng.com\/?p=1595","title":{"rendered":"\u65b9\u6cd5 &#8211; \u6c42\u5468\u957f"},"content":{"rendered":"\n<p><\/p>\n\n\n<p>\u00a0<\/p>\n<pre class=\"pure-highlightjs\"><code class=\"\">package main\n\nimport (\n    \"fmt\"\n    \"math\"\n)\n\ntype Point struct{ X, Y float64 }\ntype Path []Point\n\nfunc (p Point) Distance(q Point) float64 {\n    return math.Hypot(q.X-p.X, q.Y-p.Y)\n}\n\nfunc (p Path) Distance() float64 {\n    sum := 0.0\n    for i := range p {\n        if i &gt; 0 {\n            sum += p[i-1].Distance(p[i])\n        }\n    }\n    return sum\n}\n\nfunc main() {\n    perim := Path{\n        {1, 1},\n        {5, 1},\n        {5, 4},\n        {1, 1},\n    }\n    fmt.Println(perim.Distance())\n}\n\n# go run main.go \n12<\/code><\/pre>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p><p>\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1a<a href=\"https:\/\/www.liutianfeng.com\">liutianfeng.com<\/a> &raquo; <a href=\"https:\/\/www.liutianfeng.com\/?p=1595\">\u65b9\u6cd5 &#8211; \u6c42\u5468\u957f<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u00a0 package main import ( &#8220;fmt&#8221; &#8220;math&#8221; ) type Point struc [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[72],"tags":[],"_links":{"self":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/1595"}],"collection":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1595"}],"version-history":[{"count":2,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/1595\/revisions"}],"predecessor-version":[{"id":1598,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/1595\/revisions\/1598"}],"wp:attachment":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}