{"id":1559,"date":"2020-09-26T06:09:12","date_gmt":"2020-09-25T22:09:12","guid":{"rendered":"https:\/\/www.develop-note.com\/blog\/?p=1559"},"modified":"2022-02-16T21:56:52","modified_gmt":"2022-02-16T13:56:52","slug":"go-pointer-2021ironman","status":"publish","type":"post","link":"https:\/\/www.develop-note.com\/blog\/2020\/09\/26\/go-pointer-2021ironman\/","title":{"rendered":"Iris \u9019\u500b\u5728 go \u8a9e\u8a00\u4e0a\u5730\u8868\u6700\u5feb\u7684\u7db2\u9801\u6846\u67b6-\u6307\u6a19"},"content":{"rendered":"

go \u7684\u6307\u6a19<\/h1>\n

\u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u63d0\u5230\u81ea\u5b9a\u7fa9\u578b\u5225\u7684\u65b9\u6cd5\uff0c\u8b80\u8005\u5011\u53ef\u4ee5\u8a66\u8a66\u770b\u628a\u8a72\u81ea\u5b9a\u7fa9\u578b\u5225\u751f\u6210\u7684\u7269\u4ef6\u8ce6\u4e88\u5230\u53e6\u4e00\u500b\u8b8a\u6578\u4e0a\u5728\u66f4\u6539\u5176\u5c6c\u6027\u7684\u503c\uff0c\u6700\u5f8c\u89c0\u5bdf\u5176\u503c\u7684\u8b8a\u5316\u72c0\u6cc1\u3002\u63a5\u4e0b\u4f86\u5c31\u662f\u8ddf\u5927\u5bb6\u5206\u4eab\u5982\u4f55\u7528 *<\/code> \u4f86\u89e3\u6c7a\u9019\u554f\u984c\u3002<\/p>\n

<\/p>\n

go \u7684\u6307\u6a19\u505a\u4ec0\u9ebc\u7528<\/h2>\n

\u5728\u4ecb\u7d39\u6307\u6a19\u4e4b\u524d\u5148\u8aaa\u660e\u4e00\u4e0b\u524d\u9762\u5167\u5bb9\u767c\u751f\u7684\u539f\u56e0\uff0c\u4e3b\u8981\u662f\u5728 go \u8a9e\u8a00\u5167\u8b8a\u6578\u7684\u8ce6\u503c\u662f\u7522\u751f\u4e00\u500b\u65b0\u7684\u8a18\u61b6\u9ad4\u7a7a\u9593\uff0c\u4e26\u628a\u539f\u4f86\u7684\u503c\u8907\u88fd\u5230\u65b0\u7684\u8a18\u61b6\u7a7a\u9593\u5167\uff0c\u6240\u4ee5\u5169\u500b\u8b8a\u6578\u96d6\u7136\u770b\u8d77\u4f86\u4e00\u6a23\uff0c\u4f46\u662f\u662f\u5169\u500b\u4e0d\u540c\u7684\u8a18\u61b6\u9ad4\u4f4d\u7f6e\u7684\u8cc7\u6599\uff0c\u6240\u4ee5\u8907\u88fd\u7684\u7269\u4ef6\u66f4\u6539\u5c6c\u6027\u5f8c\u539f\u4f86\u7684\u7269\u4ef6\u5c6c\u6027\u9084\u662f\u8ddf\u4ee5\u524d\u4e00\u6a23\u3002
\n\u56e0\u6b64\u9019\u7bc7\u4e3b\u8981\u8aaa\u660e go \u7684\u6307\u6a19\uff0c\u63a5\u4e0b\u4f86\u6703\u5206\u5225\u8ddf\u5927\u5bb6\u4ecb\u7d39\u6307\u6a19\u5982\u4f55\u5ba3\u544a\u3001\u8ce6\u503c\u53ca\u4f7f\u7528\u3002<\/p>\n

\u6307\u6a19\u7684\u5ba3\u544a<\/h3>\n

\u6307\u6a19\u5ba3\u544a\u7684\u65b9\u5f0f\u8ddf\u8b8a\u6578\u4e00\u6a23\uff0c\u5dee\u5225\u7684\u5730\u65b9\u4e3b\u8981\u662f\u5728\u985e\u5225\u524d\u52a0\u4e00\u500b\u95dc\u9375\u5b57 *<\/code> \u5373\u53ef\uff0c\u8acb\u5927\u5bb6\u770b\u4e00\u4e0b\u4e0b\u5217\u4f8b\u5b50<\/p>\n

var p2 *Vertex<\/code><\/pre>\n
\u4e0a\u9762\u8aaa\u660e\u7684\u662f\u6307\u6a19\u5ba3\u544a\u7684\u65b9\u5f0f\uff0c\u63a5\u4e0b\u4f86\u8981\u8aaa\u660e\u5982\u4f55\u8ce6\u503c\u7d66\u6307\u6a19\u3002<\/p>\n
\u6307\u6a19\u7684\u8ce6\u503c<\/h3>\n
\u4e0a\u4e00\u500b\u6bb5\u843d\u8aaa\u660e\u5982\u4f55\u5ba3\u544a\u4e00\u500b\u6307\u6a19\u7684\u8b8a\u6578\uff0c\u63a5\u4e0b\u4f86\u8981\u8aaa\u660e\u5982\u4f55\u8ce6\u503c\u7d66\u4e00\u500b\u6307\u6a19\u8b8a\u6578\uff0c\u9019\u90e8\u5206\u8ddf\u8b8a\u6578\u4e00\u6a23\u4e5f\u6709\u4e0d\u9700\u5ba3\u544a\u76f4\u63a5\u8ce6\u503c\u7684\u521d\u59cb\u5316\u5beb\u6cd5\uff0c\u9019\u4e00\u908a\u4e00\u4f75\u4ecb\u7d39\u7d66\u5927\u5bb6\uff0c\u8acb\u5927\u5bb6\u5148\u770b\u4e00\u4e0b\u4e0b\u5217\u8aaa\u660e<\/p>\n
var p2 *Vertex\nv := Vertex{1, 1}\np2 = &p<\/code><\/pre>\n
\u4e0a\u9762\u4f8b\u5b50\u662f\u5ba3\u544a\u4e00\u500b\u6307\u6a19\u8b8a\u6578 p2 \u7136\u5f8c\u5ba3\u544a\u4e00\u500b\u6709\u503c\u7684\u8b8a\u6578 v \u6700\u5f8c\u4f7f\u7528 &<\/code> \u5c07 v \u7684\u8a18\u61b6\u9ad4\u4f4d\u7f6e\u5b58\u653e\u5728 p2 \u7684\u8a18\u61b6\u9ad4\u4f4d\u7f6e\uff0c\u5982\u6b64\u5c31\u53ef\u4ee5\u4f7f\u7528 p2 \u4f86\u6539\u8b8a v \u7684\u5167\u5bb9\u3002
\n\u9019\u662f\u4e00\u500b\u5b8c\u6574\u7684\u5beb\u6cd5\uff0c\u4f46\u662f\u9084\u53ef\u4ee5\u7528\u7c21\u55ae\u7684\u5beb\u6cd5\u4f86\u505a\u9019\u4ef6\u4e8b\u60c5\uff0c\u8acb\u5927\u5bb6\u770b\u4e00\u4e0b\u4e0b\u9762\u7684\u8aaa\u660e<\/p>\n
v := Vertex{1, 1}\np2 := &p<\/code><\/pre>\n
\u4e0a\u9762\u7684\u4f8b\u5b50\u662f\u4e0d\u4e8b\u5148\u5ba3\u544a\u8b8a\u6578\uff0c\u800c\u662f\u5ba3\u544a\u8b8a\u6578\u8207\u8ce6\u503c\u4e00\u8d77\u7684\u6307\u6a19\u521d\u59cb\u5316\u5beb\u6cd5\u3002<\/p>\n
\u6307\u6a19\u7684\u4f7f\u7528<\/h3>\n
\u5176\u5be6\u6307\u6a19\u8b8a\u6578\u7684\u7528\u6cd5\u8ddf\u4e00\u822c\u8b8a\u6578\u7684\u7528\u6cd5\u76f8\u540c\uff0c\u4e5f\u662f\u900f\u904e .<\/code> \u4f86\u5b58\u53d6\u8b8a\u6578\uff0c\u8acb\u5927\u5bb6\u770b\u4e00\u4e0b\u4e0b\u5217\u4f8b\u5b50<\/p>\n
package main\n\nimport "fmt"\n\ntype Vertex struct {\n    X int\n    Y int\n}\n\nfunc main() {\n    var p2 *Vertex\n    p := Vertex{1,1}\n    Pos(p)\n\n    p2 = &p\n    p2.X = 2\n    Pos(p)\n}\n\nfunc Pos(v Vertex) {\n    fmt.Println(v)\n}<\/code><\/pre>\n
\u7c21\u55ae\u8aaa\u660e\u4e00\u4e0b\u5c31\u662f\u5ba3\u544a\u4e00\u500b\u6307\u6a19\u8b8a\u6578 p2 \uff0c\u4e26\u751f\u6210\u4e00\u500b\u81ea\u5b9a\u7fa9\u578b\u5225\u7684\u8b8a\u6578 p \uff0c\u63a5\u4e0b\u4f86\u628a p \u7684\u8a18\u61b6\u9ad4\u4f4d\u7f6e\u7d66\u4e88 p2 \uff0c\u4e26\u900f\u904e p2.X \u628a p \u7684\u5c6c\u6027 X \u7684\u503c\u6539\u8b8a\u6210\u70ba 2 \uff0c\u5982\u6b64\u53ef\u4ee5\u89c0\u5bdf\u5230\u5217\u5370\u51fa\u4f86\u7684 p \u7684\u5167\u5bb9\u6539\u8b8a\u4e86\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u9019\u7bc7\u6587\u7ae0\u8aaa\u660e\u4e00\u4e0b go \u7684\u6307\u6a19\u5982\u4f55\u5ba3\u544a\u3001\u8ce6\u503c\u8207\u4f7f\u7528\uff0c\u8b93\u5927\u5bb6\u5c0d\u65bc go \u7684\u6307\u6a19\u6709\u4e00\u500b\u57fa\u790e\u6982\u5ff5\uff0c\u4e0b\u4e00\u7bc7\u6587\u7ae0\u6703\u518d\u8ddf\u5927\u5bb6\u5206\u4eab\u4e00\u4e9b\u95dc\u65bc\u985e\u5225\u3001\u6307\u6a19\u8207\u65b9\u6cd5\u9593\u9032\u4e00\u6b65\u7684\u5167\u5bb9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
go \u7684\u6307\u6a19 \u5728\u4e0a\u4e00\u7bc7\u6587\u7ae0\u4e2d\u63d0\u5230\u81ea\u5b9a\u7fa9\u578b\u5225\u7684\u65b9\u6cd5\uff0c\u8b80\u8005\u5011\u53ef\u4ee5\u8a66\u8a66\u770b\u628a\u8a72\u81ea\u5b9a\u7fa9\u578b\u5225\u751f\u6210\u7684\u7269\u4ef6\u8ce6\u4e88\u5230\u53e6\u4e00\u500b\u8b8a\u6578\u4e0a\u5728 … <\/p>\n
\u95b1\u8b80\u5168\u6587\u3008Iris \u9019\u500b\u5728 go \u8a9e\u8a00\u4e0a\u5730\u8868\u6700\u5feb\u7684\u7db2\u9801\u6846\u67b6-\u6307\u6a19\u3009<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[2],"tags":[158,81],"class_list":["post-1559","post","type-post","status-publish","format-standard","hentry","category-develop","tag-2020ironman","tag-go"],"_links":{"self":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/comments?post=1559"}],"version-history":[{"count":13,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1559\/revisions"}],"predecessor-version":[{"id":2680,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/posts\/1559\/revisions\/2680"}],"wp:attachment":[{"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/media?parent=1559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/categories?post=1559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.develop-note.com\/blog\/wp-json\/wp\/v2\/tags?post=1559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}