{"id":57754,"date":"2024-10-10T20:52:32","date_gmt":"2024-10-10T12:52:32","guid":{"rendered":"https:\/\/server.hk\/cnblog\/57754\/"},"modified":"2024-10-10T20:52:32","modified_gmt":"2024-10-10T12:52:32","slug":"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-big-%e5%8c%85%ef%bc%9a%e5%b0%8d%e6%95%b4%e6%95%b8%e7%9a%84%e9%ab%98%e7%b2%be%e5%ba%a6%e8%a8%88%e7%ae%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/57754\/","title":{"rendered":"GO\u6559\u7a0b: Go \u8a9e\u8a00 big \u5305\uff1a\u5c0d\u6574\u6578\u7684\u9ad8\u7cbe\u5ea6\u8a08\u7b97"},"content":{"rendered":"<h1 id=\"go%e6%95%99%e7%a8%8b-go-%e8%aa%9e%e8%a8%80-big-%e5%8c%85%ef%bc%9a%e5%b0%8d%e6%95%b4%e6%95%b8%e7%9a%84%e9%ab%98%e7%b2%be%e5%ba%a6%e8%a8%88%e7%ae%97-yCngjzsuZd\">GO\u6559\u7a0b: Go \u8a9e\u8a00 big \u5305\uff1a\u5c0d\u6574\u6578\u7684\u9ad8\u7cbe\u5ea6\u8a08\u7b97<\/h1>\n<p>\u5728\u73fe\u4ee3\u7de8\u7a0b\u4e2d\uff0c\u5c0d\u65bc\u6578\u5b57\u7684\u8a08\u7b97\u7cbe\u5ea6\u8981\u6c42\u8d8a\u4f86\u8d8a\u9ad8\uff0c\u5c24\u5176\u662f\u5728\u91d1\u878d\u3001\u79d1\u5b78\u8a08\u7b97\u7b49\u9818\u57df\u3002Go \u8a9e\u8a00\u63d0\u4f9b\u4e86\u4e00\u500b\u540d\u70ba <code>big<\/code> \u7684\u6a19\u6e96\u5eab\uff0c\u5c08\u9580\u7528\u65bc\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e Go \u8a9e\u8a00\u7684 <code>big<\/code> \u5305\uff0c\u4e26\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u5b83\u9032\u884c\u9ad8\u7cbe\u5ea6\u6574\u6578\u8a08\u7b97\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-big-%e5%8c%85%ef%bc%9f-yCngjzsuZd\">\u4ec0\u9ebc\u662f big \u5305\uff1f<\/h2>\n<p><code>big<\/code> \u5305\u662f Go \u8a9e\u8a00\u7684\u6a19\u6e96\u5eab\u4e4b\u4e00\uff0c\u63d0\u4f9b\u4e86\u5c0d\u4efb\u610f\u7cbe\u5ea6\u6574\u6578\u548c\u6d6e\u9ede\u6578\u7684\u652f\u6301\u3002\u9019\u610f\u5473\u8457\uff0c\u4f7f\u7528 <code>big<\/code> \u5305\uff0c\u6211\u5011\u53ef\u4ee5\u8655\u7406\u8d85\u51fa Go \u8a9e\u8a00\u5167\u5efa\u6574\u6578\u985e\u578b\uff08\u5982 <code>int<\/code> \u548c <code>int64<\/code>\uff09\u7bc4\u570d\u7684\u6578\u5b57\u3002\u9019\u5c0d\u65bc\u9700\u8981\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u7684\u61c9\u7528\u7a0b\u5e8f\u4f86\u8aaa\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-big-%e5%8c%85-yCngjzsuZd\">\u5982\u4f55\u4f7f\u7528 big \u5305<\/h2>\n<p>\u8981\u4f7f\u7528 <code>big<\/code> \u5305\uff0c\u9996\u5148\u9700\u8981\u5c0e\u5165\u5b83\u3002\u4ee5\u4e0b\u662f\u5c0e\u5165 <code>big<\/code> \u5305\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>import \"math\/big\"<\/code><\/pre>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e9%ab%98%e7%b2%be%e5%ba%a6%e6%95%b4%e6%95%b8-yCngjzsuZd\">\u5275\u5efa\u9ad8\u7cbe\u5ea6\u6574\u6578<\/h3>\n<p>\u4f7f\u7528 <code>big<\/code> \u5305\uff0c\u6211\u5011\u53ef\u4ee5\u5275\u5efa\u9ad8\u7cbe\u5ea6\u6574\u6578\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u548c\u521d\u59cb\u5316\u4e00\u500b\u9ad8\u7cbe\u5ea6\u6574\u6578\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>var a big.Int\na.SetString(\"123456789012345678901234567890\", 10)<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>a<\/code> \u7684\u9ad8\u7cbe\u5ea6\u6574\u6578\uff0c\u4e26\u5c07\u5176\u8a2d\u7f6e\u70ba\u4e00\u500b\u975e\u5e38\u5927\u7684\u6578\u5b57\u3002<\/p>\n<h3 id=\"%e9%ab%98%e7%b2%be%e5%ba%a6%e8%a8%88%e7%ae%97%e7%a4%ba%e4%be%8b-yCngjzsuZd\">\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u793a\u4f8b<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u5c07\u5c55\u793a\u5982\u4f55\u4f7f\u7528 <code>big<\/code> \u5305\u9032\u884c\u57fa\u672c\u7684\u6578\u5b78\u904b\u7b97\uff0c\u4f8b\u5982\u52a0\u6cd5\u3001\u6e1b\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u3002<\/p>\n<pre><code>var b big.Int\nb.SetString(\"987654321098765432109876543210\", 10)\n\nvar sum big.Int\nsum.Add(&amp;a, &amp;b) \/\/ \u52a0\u6cd5\n\nvar diff big.Int\ndiff.Sub(&amp;b, &amp;a) \/\/ \u6e1b\u6cd5\n\nvar product big.Int\nproduct.Mul(&amp;a, &amp;b) \/\/ \u4e58\u6cd5\n\nvar quotient big.Int\nquotient.Div(&amp;b, &amp;a) \/\/ \u9664\u6cd5\n\nfmt.Println(\"Sum:\", sum.String())\nfmt.Println(\"Difference:\", diff.String())\nfmt.Println(\"Product:\", product.String())\nfmt.Println(\"Quotient:\", quotient.String())<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u53e6\u4e00\u500b\u9ad8\u7cbe\u5ea6\u6574\u6578 <code>b<\/code>\uff0c\u4e26\u9032\u884c\u4e86\u52a0\u6cd5\u3001\u6e1b\u6cd5\u3001\u4e58\u6cd5\u548c\u9664\u6cd5\u904b\u7b97\u3002\u6700\u5f8c\uff0c\u6211\u5011\u4f7f\u7528 <code>String()<\/code> \u65b9\u6cd5\u5c07\u7d50\u679c\u8f49\u63db\u70ba\u5b57\u7b26\u4e32\u4e26\u6253\u5370\u51fa\u4f86\u3002<\/p>\n<h2 id=\"%e9%ab%98%e7%b2%be%e5%ba%a6%e8%a8%88%e7%ae%97%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-yCngjzsuZd\">\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u5728\u8a31\u591a\u9818\u57df\u90fd\u6709\u5ee3\u6cdb\u7684\u61c9\u7528\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u91d1\u878d\u8a08\u7b97\uff1a\u5982\u5229\u606f\u8a08\u7b97\u3001\u8ca8\u5e63\u8f49\u63db\u7b49\u3002<\/li>\n<li>\u79d1\u5b78\u8a08\u7b97\uff1a\u5982\u7269\u7406\u5b78\u4e2d\u7684\u5927\u6578\u64da\u8a08\u7b97\u3002<\/li>\n<li>\u5bc6\u78bc\u5b78\uff1a\u5982\u5927\u8cea\u6578\u7684\u751f\u6210\u548c\u904b\u7b97\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u61c9\u7528\u90fd\u9700\u8981\u9ad8\u7cbe\u5ea6\u7684\u6578\u5b57\u904b\u7b97\uff0c\u800c <code>big<\/code> \u5305\u6b63\u597d\u6eff\u8db3\u4e86\u9019\u4e00\u9700\u6c42\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yCngjzsuZd\">\u7e3d\u7d50<\/h2>\n<p>Go \u8a9e\u8a00\u7684 <code>big<\/code> \u5305\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\u4f86\u9032\u884c\u9ad8\u7cbe\u5ea6\u6574\u6578\u8a08\u7b97\u3002\u7121\u8ad6\u662f\u5728\u91d1\u878d\u3001\u79d1\u5b78\u9084\u662f\u5176\u4ed6\u9700\u8981\u9ad8\u7cbe\u5ea6\u8a08\u7b97\u7684\u9818\u57df\uff0c<code>big<\/code> \u5305\u90fd\u80fd\u5920\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Go \u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u7684\u670d\u52d9\u5c07\u662f\u60a8\u7684\u7406\u60f3\u9078\u64c7\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 Go \u8a9e\u8a00\u4e2d\u7684 big \u5305\uff0c\u5b78\u7fd2\u5982\u4f55\u9032\u884c\u9ad8\u7cbe\u5ea6\u6574\u6578\u8a08\u7b97\uff0c\u63d0\u5347\u4f60\u7684\u7de8\u7a0b\u6280\u80fd\u8207\u6578\u64da\u8655\u7406\u80fd\u529b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-57754","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57754","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=57754"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57754\/revisions"}],"predecessor-version":[{"id":57755,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/57754\/revisions\/57755"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=57754"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=57754"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=57754"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}