{"id":206490,"date":"2025-06-12T08:13:10","date_gmt":"2025-06-12T00:13:10","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206490\/"},"modified":"2025-06-12T08:13:10","modified_gmt":"2025-06-12T00:13:10","slug":"go-%e4%b8%ad%e5%a4%9a%e4%b8%aa%e6%9d%a1%e4%bb%b6%e5%88%a4%e6%96%ad%e7%9a%84%e4%bc%98%e5%8c%96%ef%bc%9a%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d-if-%e8%af%ad%e5%8f%a5%e7%9a%84%e5%86%97%e9%95%bf%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206490\/","title":{"rendered":"Go \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f"},"content":{"rendered":"<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9GOLANG\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300aGo \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241113\/173146811867341b5623961.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go \u4e2d if \u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316<\/strong>,\u5728 go \u8bed\u8a00\u4e2d\uff0c\u9762\u5bf9\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u65f6\uff0c\u4f7f\u7528 if &#8230; {} \u8bed\u6cd5\u5f88\u5bb9\u6613\u5bfc\u81f4\u4ee3\u7801\u5197\u957f\u3002\u867d\u7136\u53ef\u4ee5\u4f7f\u7528 || \u903b\u8f91\u8fd0\u7b97\u7b26\u6765\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6\uff0c\u4f46\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u91c7\u53d6\u4e00\u4e9b\u5176\u4ed6\u65b9\u6cd5\u3002,<br \/>\n<strong>\u5c01\u88c5\u51fd\u6570<\/strong>,\u4e00\u79cd\u65b9\u6cd5\u662f\u5c06\u591a\u4e2a\u6761\u4ef6\u5c01\u88c5\u5230\u4e00\u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u4e2d\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u5224\u65ad\u6587\u4ef6\u683c\u5f0f\u662f\u5426\u4e3a csv\u3001xlsx \u6216 xls\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a isinarray \u51fd\u6570\uff1a,\u7136\u540e\u5728 if \u5224\u65ad\u4e2d\u4f7f\u7528\u6b64\u51fd\u6570\uff1a,<br \/>\n<strong>\u94fe\u5f0f if \u5224\u65ad<\/strong>,\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u94fe\u5f0f if \u5224\u65ad\uff0c\u901a\u8fc7\u5d4c\u5957 if \u8bed\u53e5\u6765\u5224\u65ad\u591a\u4e2a\u6761\u4ef6\u3002\u4f8b\u5982\uff1a,<br \/>\n<strong>switch case<\/strong>,\u5bf9\u4e8e\u9700\u8981\u5224\u65ad\u591a\u4e2a\u7279\u5b9a\u503c\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u4f7f\u7528 switch case \u8bed\u53e5\uff1a,\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGOLANG\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~,go \u4e2d if \u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316,\u5c0f\u4f19\u4f34\u4eec\u5bf9GOLANG\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300aGo \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>Go \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f<\/span><\/p>\n<h1>Go \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f<\/h1>\n<p><span>2024-11-13 11:22:13<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9GOLANG\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300aGo \u4e2d\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316\uff1a\u5982\u4f55\u907f\u514d if \u8bed\u53e5\u7684\u5197\u957f\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241113\/173146811867341b5623961.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go \u4e2d if \u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u7684\u4f18\u5316<\/strong><\/p>\n<p>\u5728 go \u8bed\u8a00\u4e2d\uff0c\u9762\u5bf9\u591a\u4e2a\u6761\u4ef6\u5224\u65ad\u65f6\uff0c\u4f7f\u7528 if &#8230; {} \u8bed\u6cd5\u5f88\u5bb9\u6613\u5bfc\u81f4\u4ee3\u7801\u5197\u957f\u3002\u867d\u7136\u53ef\u4ee5\u4f7f\u7528 || \u903b\u8f91\u8fd0\u7b97\u7b26\u6765\u7ec4\u5408\u591a\u4e2a\u6761\u4ef6\uff0c\u4f46\u4e3a\u4e86\u63d0\u9ad8\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u91c7\u53d6\u4e00\u4e9b\u5176\u4ed6\u65b9\u6cd5\u3002<\/p>\n<p><strong>\u5c01\u88c5\u51fd\u6570<\/strong><\/p>\n<p>\u4e00\u79cd\u65b9\u6cd5\u662f\u5c06\u591a\u4e2a\u6761\u4ef6\u5c01\u88c5\u5230\u4e00\u4e2a\u81ea\u5b9a\u4e49\u51fd\u6570\u4e2d\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u5224\u65ad\u6587\u4ef6\u683c\u5f0f\u662f\u5426\u4e3a csv\u3001xlsx \u6216 xls\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2a isinarray \u51fd\u6570\uff1a<\/p>\n<pre>func isinarray(value string, array []string) bool {\n    for _, v := range array {\n        if value == v {\n            return true\n        }\n    }\n    return false\n}<\/pre>\n<p>\u7136\u540e\u5728 if \u5224\u65ad\u4e2d\u4f7f\u7528\u6b64\u51fd\u6570\uff1a<\/p>\n<pre>if isinarray(fileformat, []string{\"csv\", \"xlsx\", \"xls\"}) {\n    \/\/ ...\n}<\/pre>\n<p><strong>\u94fe\u5f0f if \u5224\u65ad<\/strong><\/p>\n<p>\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u94fe\u5f0f if \u5224\u65ad\uff0c\u901a\u8fc7\u5d4c\u5957 if \u8bed\u53e5\u6765\u5224\u65ad\u591a\u4e2a\u6761\u4ef6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>if fileformat == \"csv\" {\n    \/\/ ...\n} else if fileformat == \"xlsx\" {\n    \/\/ ...\n} else if fileformat == \"xls\" {\n    \/\/ ...\n}<\/pre>\n<p><strong>switch case<\/strong><\/p>\n<p>\u5bf9\u4e8e\u9700\u8981\u5224\u65ad\u591a\u4e2a\u7279\u5b9a\u503c\u7684\u573a\u666f\uff0c\u53ef\u4ee5\u4f7f\u7528 switch case \u8bed\u53e5\uff1a<\/p>\n<pre>switch fileFormat {\ncase \"csv\":\n    \/\/ ...\ncase \"xlsx\":\n    \/\/ ...\ncase \"xls\":\n    \/\/ ...\n}<\/pre>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8eGOLANG\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Java\u4e2d\u5982\u4f55\u5b9e\u73b0\u8de8\u7c7b\u4f20\u9012\u53d8\u91cf\u503c\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   10\u4e2a\u7b80\u5355\u6b65\u9aa4\u6559\u4f60\u5982\u4f55\u8fde\u63a5\u534e\u4e3a\u624b\u673a\u548c\u7535\u8111\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9GOLANG\u7f16\u7a0b\u611f\u5174\u8da3&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-206490","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206490","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=206490"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206490\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206490"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}