{"id":42646,"date":"2024-12-01T11:21:01","date_gmt":"2024-12-01T03:21:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/42646\/"},"modified":"2024-12-01T11:21:01","modified_gmt":"2024-12-01T03:21:01","slug":"golang%e4%b8%ad%e5%8f%aa%e8%bf%94%e5%9b%9e%e5%a4%9a%e4%b8%aa%e8%bf%94%e5%9b%9e%e5%80%bc%e4%b8%ad%e7%9a%84%e7%ac%ac%e4%b8%80%e4%b8%aa%e7%bb%93%e6%9e%9c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/42646\/","title":{"rendered":"golang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> golang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c<\/span><\/p>\n

golang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c<\/h1>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-24 21:18:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300agolang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u8fd9\u91cc\u7edd\u5bf9\u662f\u65b0\u624b\u95ee\u9898\u3002<\/p>\n

go \u4e2d\u7684\u67d0\u4e9b\u51fd\u6570\u8fd4\u56de\u591a\u4e2a\u503c\uff08\u901a\u5e38\u662f\u503c\u548c\u9519\u8bef\uff09\u3002\u6211\u6b63\u5728\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u8fd4\u56de\u5176\u4e2d\u4e00\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\uff0c\u5373\u4f7f\u5f88\u5bb9\u6613\u5c06\u503c\u653e\u5728\u53d8\u91cf\u4e0a\u5e76\u4ec5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u503c\uff0c\u6211\u6000\u7591\u662f\u5426\u53ef\u4ee5\u5728\u4e00\u884c\u4e2d\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\u6ca1\u6709\u989d\u5916\u7684\u53d8\u91cf\u3002\u8fd9\u662f\u5176\u4ed6\u8bed\u8a00\uff08\u5982 c\u3001java\u3001c#\u3001ruby \u7b49\uff09\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u5185\u5bb9<\/p>\n

func somefunc (param string) int {\n   \/\/ do something with the string, not very important\n   return strconv.atoi(param) \n}<\/pre>\n
\u6211\u77e5\u9053\u8fd9\u6709\u6548<\/p>\n
func someFunc (param string) int {\n   \/\/ do something with the string, not very important\n   var result int\n   result, _ = strconv.Atoi(param)\n   return result \n}<\/pre>\n
\u8fd9\u5728 go \u4e2d\u53ef\u80fd\u5417\uff1f\u5b83\u88ab\u8ba4\u4e3a\u662f\u4e00\u79cd\u201c\u826f\u597d\u5b9e\u8df5\u201d\uff08\u5c31\u50cf\u5728 java* \u4e2d\u4e00\u6837\uff09<\/p>\n
\u6ce8\u610f\uff1a\u5728\u6709\u4eba\u8bf4\u8fd9\u79cd\u6280\u672f\u5728 java \u4e2d\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u5b9e\u8df5\u4e4b\u524d\uff0c\u8bf7\u6f84\u6e05\u8fd9\u5bf9\u4e8e\u95ee\u9898\u6765\u8bf4\u5e76\u4e0d\u91cd\u8981\uff0c\u4f46\u6709\u4e9b\u4eba\uff08\u6bd4\u5982\u6211\u5de5\u4f5c\u7684\u516c\u53f8\u4e2d\u7684\u4eba\uff09\u9f13\u52b1\u8fd9\u79cd\u98ce\u683c\u3002<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u4f7f\u7528  \u6700\u77ed\u7684\u4ee3\u7801\u6765\u5b9e\u73b0\u6b64\u76ee\u6807\uff1a<\/p>\n
func somefunc(parm string) int {\n    result, _ := strconv.atoi(param)\n    return result\n}<\/pre>\n
\u5982\u679c\u4e0d\u5f15\u5165\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\u5e76\u8fd4\u56de\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u8f85\u52a9\u51fd\u6570\uff0c\u5c31\u6ca1\u6709\u5355\u884c\u89e3\u51b3\u65b9\u6848\u3002\u5bf9\u4e8e\u8981\u5ffd\u7565\u503c\u7684\u6bcf\u79cd\u7c7b\u578b\u7ec4\u5408\uff0c\u90fd\u9700\u8981\u8fd9\u4e9b\u8f85\u52a9\u51fd\u6570\u4e4b\u4e00\u3002<\/p>\n
\u6700\u597d\u7684\u5355\u884c\u4ee3\u7801\u662f\u4e00\u4e2a\u8f85\u52a9\u51fd\u6570\uff0c\u7f16\u5199\u4e3a\uff1a<\/p>\n
func first(n int, _ error) int {\n    return n\n}\n\nfunc somefunc(param string) int {\n    return first(strconv.atoi(param))\n}<\/pre>\n
\u8bf7\u6ce8\u610f\uff1a<\/p>\n
    \n
  • \u53c2\u6570\u7c7b\u578b\u548c\u4f4d\u7f6e\u5fc5\u987b\u5b8c\u5168\u5339\u914d<\/li>\n
  • first<\/code> \u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e3a  (_<\/code>)\uff0c\u660e\u786e\u8868\u793a\u60a8\u5e0c\u671b\u5b8c\u5168\u5ffd\u7565\u5b83\u3002 [1]<\/li>\n<\/ul>\n
    \u5982\u679c\u60a8\u7edd\u5bf9<\/strong>\u4e0d\u60f3\u58f0\u660e\u547d\u540d\u51fd\u6570\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u51fd\u6570\u6587\u5b57\uff0c\u4f46\u8fd9\u770b\u8d77\u6765\u771f\u7684\u5f88\u96be\u770b\uff1a<\/p>\n
    func somefunc(param string) int {\n    return func(n int, _ error) int { return n }(strconv.atoi(param))\n}<\/pre>\n
    \u4e00\u822c\u6765\u8bf4\uff0c\u5982\u679c\u60a8\u7684\u4ee3\u7801\u4e2d\u6709\u5927\u91cf\u91cd\u590d\uff0c\u5219\u8f85\u52a9\u51fd\u6570\u662f\u503c\u5f97\u7684\u3002\u5426\u5219\uff0c\u53ea\u9700\u4f7f\u7528\u4e34\u65f6\u53d8\u91cf\uff0c\u5b83\u770b\u8d77\u6765\u5e72\u51c0\u4e14\u60ef\u7528\uff1a<\/p>\n
    func somefunc(param string) int {\n    n, _ := strconv.atoi(param)\n    return n\n}<\/pre>\n
    \u6f14\u793a\uff1a<\/p>\n
    \u4e00\u65e6\u6cdb\u578b\u88ab\u6dfb\u52a0\u5230 go 1.18 \u4e2d\u7684\u8bed\u8a00\u4e2d\uff0c\u60a8\u5c06\u80fd\u591f\u7f16\u5199\u4e00\u4e2a\u53ef\u4e0e\u200b\u200b\u4efb\u4f55\u8fd4\u56de\u5bf9\u4e00\u8d77\u4f7f\u7528\u7684\u8f85\u52a9\u51fd\u6570\uff0c\u5e76\u4fdd\u7559\u7b2c\u4e00\u4e2a\u8fd4\u56de\u5bf9\u7684\u7c7b\u578b\u5b89\u5168\u6027\uff1a<\/p>\n
    func first[T, U any](val T, _ U) T {\n    return val\n}\n\nfunc SomeFunc(param string) int {\n    return first(strconv.Atoi(param))\n}<\/pre>\n
    go2\u6f14\u793a\uff1a<\/p>\n
    \u811a\u6ce8\uff1a<\/p>\n
    [1] \u8bf7\u8bb0\u4f4f\uff0c\u5728 strings.atoi<\/code> \u7684\u60c5\u51b5\u4e0b\uff0c\u7b2c\u4e8c\u4e2a\u8fd4\u56de\u503c\u662f\u4e00\u4e2a\u9519\u8bef\uff0c\u800c\u5ffd\u7565\u9519\u8bef\u662f\u4e0d\u597d\u7684\u505a\u6cd5<\/em>\u3002\u7136\u800c\uff0c\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u64cd\u4f5c\u662f\u5426\u6210\u529f\u786e\u5b9e\u5e76\u4e0d\u91cd\u8981\uff0c\u90a3\u4e48\u53ef\u4ee5\u4f7f\u7528 _<\/code> \u6765\u5ffd\u7565\u8be5\u53c2\u6570\u3002<\/p>\n
    \u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300agolang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5f53\u524d\u4f4d\u7f6e\uff1a > > > > golang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c golang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c \u6765\u6e90\uff1astackoverflow 2024-04-24 21:18:33 0\u6d4f\u89c8 \u6536\u85cf \u5077\u5077\u52aa\u529b\uff0c\u6084\u65e0\u58f0\u606f\u5730\u53d8\u5f3a\uff0c\u7136\u540e\u60ca\u8273\u6240\u6709\u4eba\uff01\u54c8\u54c8\uff0c\u5c0f\u4f19\u4f34\u4eec\u53c8\u6765\u5b66\u4e60\u5566~\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300agolang\u4e2d\u53ea\u8fd4\u56de\u591a\u4e2a\u8fd4\u56de\u503c\u4e2d\u7684\u7b2c\u4e00\u4e2a\u7ed3\u679c\u300b\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u4e0d\u77e5\u9053\u5927\u5bb6\u5bf9\u5176\u90fd\u6709\u591a\u5c11\u4e86\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u5c31\u4e00\u8d77\u6765\u770b\u4e00\u5427\uff01\u5f53\u7136\uff0c\u975e\u5e38\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u8bc4\u8bba\uff0c\u7ed9\u51fa\u5408\u7406\u7684\u5efa\u8bae\uff0c\u6211\u4eec\u4e00\u8d77\u5b66\u4e60\uff0c\u4e00\u8d77\u8fdb\u6b65\uff01 \u95ee\u9898\u5185\u5bb9 \u8fd9\u91cc\u7edd\u5bf9\u662f\u65b0\u624b\u95ee\u9898\u3002 go \u4e2d\u7684\u67d0\u4e9b\u51fd\u6570\u8fd4\u56de\u591a\u4e2a\u503c\uff08\u901a\u5e38\u662f\u503c\u548c\u9519\u8bef\uff09\u3002\u6211\u6b63\u5728\u7f16\u5199\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u8fd4\u56de\u5176\u4e2d\u4e00\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\uff0c\u5373\u4f7f\u5f88\u5bb9\u6613\u5c06\u503c\u653e\u5728\u53d8\u91cf\u4e0a\u5e76\u4ec5\u8fd4\u56de\u7b2c\u4e00\u4e2a\u503c\uff0c\u6211\u6000\u7591\u662f\u5426\u53ef\u4ee5\u5728\u4e00\u884c\u4e2d\u6267\u884c\u76f8\u540c\u7684\u64cd\u4f5c\u6ca1\u6709\u989d\u5916\u7684\u53d8\u91cf\u3002\u8fd9\u662f\u5176\u4ed6\u8bed\u8a00\uff08\u5982 c\u3001java\u3001c#\u3001ruby \u7b49\uff09\u4e2d\u7ecf\u5e38\u4f7f\u7528\u7684\u5185\u5bb9 func somefunc (param string) int { \/\/ do something with the string, not very important return strconv.atoi(param) } \u6211\u77e5\u9053\u8fd9\u6709\u6548 func someFunc (param string) int { \/\/ do something with the string, not very important var result […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-42646","post","type-post","status-publish","format-standard","hentry","category-docker"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=42646"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/42646\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=42646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=42646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=42646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}