{"id":6564,"date":"2024-09-19T19:21:10","date_gmt":"2024-09-19T11:21:10","guid":{"rendered":"https:\/\/t.n-years.com\/?p=6564"},"modified":"2024-09-19T19:21:10","modified_gmt":"2024-09-19T11:21:10","slug":"go-interface-%e5%92%8c-any","status":"publish","type":"post","link":"https:\/\/t.n-years.com\/?p=6564","title":{"rendered":"Go interface{} \u548c any"},"content":{"rendered":"<p>\u5728 Go \u8bed\u8a00\u4e2d\uff0c<code>interface{}<\/code> \u548c <code>any<\/code> \u5177\u6709\u76f8\u540c\u7684\u4f5c\u7528\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u5b58\u50a8\u4efb\u610f\u7c7b\u578b\u7684\u503c\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u7684\u533a\u522b\u5728\u4e8e<strong>\u5386\u53f2\u548c\u8bed\u4e49<\/strong>\u4e0a\u7684\u4e0d\u540c\u3002<\/p>\n<p>Any \u5b9a\u4e49\uff1a<code>type any = interface{}<\/code><\/p>\n<h3>\u5171\u6027<\/h3>\n<ol>\n<li>\n<p><strong>\u4ee3\u8868\u4efb\u610f\u7c7b\u578b<\/strong>\uff1a\u65e0\u8bba\u662f <code>interface{}<\/code> \u8fd8\u662f <code>any<\/code>\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u5bb9\u7eb3\u4efb\u4f55\u7c7b\u578b\u7684\u503c\u3002\u8fd9\u610f\u5473\u7740\u4f60\u53ef\u4ee5\u5c06\u57fa\u672c\u7c7b\u578b\uff08\u5982 <code>int<\/code>\u3001<code>string<\/code>\uff09\u6216\u81ea\u5b9a\u4e49\u7c7b\u578b\uff08\u5982\u7ed3\u6784\u4f53\u3001\u5207\u7247\uff09\u8d4b\u7ed9\u5b83\u4eec\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-go\">var x interface{} = 42\nvar y any = \"Hello\"<\/code><\/pre>\n<\/li>\n<li>\n<p><strong>\u7c7b\u578b\u65ad\u8a00<\/strong>\uff1a\u4e24\u8005\u90fd\u652f\u6301\u7c7b\u578b\u65ad\u8a00\uff0c\u901a\u8fc7\u7c7b\u578b\u65ad\u8a00\u53ef\u4ee5\u4ece <code>interface{}<\/code> \u6216 <code>any<\/code> \u4e2d\u63d0\u53d6\u51fa\u5177\u4f53\u7684\u7c7b\u578b\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-go\">var a interface{} = 10\nv, ok := a.(int) \/\/ \u4f7f\u7528\u7c7b\u578b\u65ad\u8a00<\/code><\/pre>\n<\/li>\n<li>\n<p><strong>\u4f5c\u4e3a\u51fd\u6570\u53c2\u6570<\/strong>\uff1a\u5b83\u4eec\u90fd\u53ef\u4ee5\u4f5c\u4e3a\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\uff0c\u4f7f\u5f97\u51fd\u6570\u80fd\u591f\u63a5\u53d7\u4efb\u4f55\u7c7b\u578b\u7684\u53c2\u6570\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-go\">func PrintValue(v any) {\n   fmt.Println(v)\n}<\/code><\/pre>\n<\/li>\n<\/ol>\n<h3>\u5dee\u5f02<\/h3>\n<ol>\n<li>\n<p><strong>\u672f\u8bed\u5dee\u5f02<\/strong>\uff1a<\/p>\n<ul>\n<li><code>interface{}<\/code> \u662f Go \u8bed\u8a00\u4ece\u4e00\u5f00\u59cb\u5c31\u5b58\u5728\u7684\u8bed\u6cd5\uff0c\u79f0\u4e3a<strong>\u7a7a\u63a5\u53e3<\/strong>\u3002<\/li>\n<li><code>any<\/code> \u662f\u4ece Go 1.18 \u5f00\u59cb\u5f15\u5165\u7684\u7c7b\u578b\u522b\u540d\uff08<code>type any = interface{}<\/code>\uff09\uff0c\u5b83\u53ea\u662f <code>interface{}<\/code> \u7684\u8bed\u6cd5\u7cd6\uff0c\u76ee\u7684\u662f\u8ba9\u4ee3\u7801\u5728\u8bed\u4e49\u4e0a\u66f4\u5177\u53ef\u8bfb\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p><strong>\u53ef\u8bfb\u6027\u4e0e\u73b0\u4ee3\u5316<\/strong>\uff1a<\/p>\n<ul>\n<li><code>interface{}<\/code> \u8868\u793a\u4e00\u4e2a\u7a7a\u63a5\u53e3\uff0c\u76f4\u63a5\u770b\u4ee3\u7801\u65f6\u53ef\u80fd\u4e0d\u592a\u76f4\u89c2\u3002<\/li>\n<li><code>any<\/code> \u662f Go 1.18 \u5f15\u5165\u7684\uff0c\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u8868\u793a\u8fd9\u4e2a\u503c\u53ef\u4ee5\u662f\u201c\u4efb\u4f55\u201d\u7c7b\u578b\u7684\u503c\uff0c\u66f4\u7b26\u5408\u73b0\u4ee3\u7f16\u7a0b\u4e60\u60ef\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>\u793a\u4f8b<\/h3>\n<pre><code class=\"language-go\">\/\/ \u4f7f\u7528 interface{}\nvar x interface{} = 42\n\n\/\/ \u4f7f\u7528 any\uff08Go 1.18 \u53ca\u4ee5\u4e0a\u7248\u672c\uff09\nvar y any = &quot;Hello&quot;<\/code><\/pre>\n<p>\u4ece\u6280\u672f\u4e0a\u8bb2\uff0c<code>any<\/code> \u548c <code>interface{}<\/code> \u662f\u7b49\u4ef7\u7684\uff0c\u4f46 <code>any<\/code> \u4f7f\u4ee3\u7801\u66f4\u5177\u8868\u8fbe\u529b\uff0c\u7279\u522b\u662f\u5728\u6cdb\u578b\u7f16\u7a0b\u4e2d\uff0c<code>any<\/code> \u88ab\u63a8\u8350\u4f7f\u7528\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p><code>interface{}<\/code> \u662f Go \u65e9\u671f\u7684\u5199\u6cd5\uff0c\u800c <code>any<\/code> \u662f Go 1.18+ \u7684\u73b0\u4ee3\u8bed\u6cd5\u7cd6\uff0c\u5b83\u4eec\u5728\u529f\u80fd\u4e0a\u5b8c\u5168\u4e00\u81f4\uff0c\u53ea\u662f <code>any<\/code> \u65e8\u5728\u8ba9\u4ee3\u7801\u66f4\u6613\u8bfb\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 Go \u8bed\u8a00\u4e2d\uff0cinterface{} \u548c any \u5177\u6709\u76f8\u540c\u7684\u4f5c\u7528\uff0c\u5b83\u4eec\u90fd\u53ef\u4ee5\u5b58\u50a8\u4efb\u610f\u7c7b\u578b\u7684\u503c\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u7684&#8230; <\/p>\n<div class=\"read-more navbutton\"><a href=\"https:\/\/t.n-years.com\/?p=6564\">\u9605\u8bfb\u66f4\u591a<i class=\"fa fa-angle-double-right\"><\/i><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[123],"tags":[],"class_list":["post-6564","post","type-post","status-publish","format-standard","hentry","category-123"],"_links":{"self":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6564"}],"version-history":[{"count":1,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6564\/revisions"}],"predecessor-version":[{"id":6565,"href":"https:\/\/t.n-years.com\/index.php?rest_route=\/wp\/v2\/posts\/6564\/revisions\/6565"}],"wp:attachment":[{"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/t.n-years.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}