{"id":47481,"date":"2025-07-30T08:02:07","date_gmt":"2025-07-30T00:02:07","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/47481.html"},"modified":"2025-07-30T08:02:07","modified_gmt":"2025-07-30T00:02:07","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3-go-%e8%af%ad%e8%a8%80%e6%a0%87%e5%87%86%e5%ba%93%e4%b8%ad%e7%9a%84%e4%bb%a3%e7%a0%81%e6%a0%bc%e5%bc%8f%e5%8c%96%e5%88%a9%e5%99%a8%ef%bc%9aprinter-%e5%ba%93","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/47481.html","title":{"rendered":"\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668\uff1aprinter \u5e93"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/07\/20250730000204-688960fc935a3.png\" alt=\"\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668&#xff1a;printer \u5e93\" \/><\/p>\n<h2>\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668&#xff1a;printer \u5e93<\/h2>\n<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668&#xff1a;printer \u5e93<\/li>\n<li>\n<ul>\n<li>\u5f15\u8a00<\/li>\n<li>\u4e00\u3001\u6838\u5fc3\u77e5\u8bc6&#xff1a;printer \u5e93\u7684\u5e95\u5c42\u903b\u8f91\u4e0e\u6838\u5fc3\u529f\u80fd<\/li>\n<li>\n<ul>\n<li>1. \u5e93\u5b9a\u4f4d\u4e0e\u4f9d\u8d56\u5173\u7cfb<\/li>\n<li>2. \u6838\u5fc3\u6570\u636e\u7ed3\u6784&#xff1a;&#096;printer.Config&#096;<\/li>\n<li>3. \u6838\u5fc3\u65b9\u6cd5&#xff1a;&#096;Fprint&#096; \u4e0e &#096;Print&#096;<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001\u4ee3\u7801\u793a\u4f8b&#xff1a;\u4ece AST \u5230\u683c\u5f0f\u5316\u4ee3\u7801\u7684\u5b8c\u6574\u6d41\u7a0b<\/li>\n<li>\n<ul>\n<li>1. \u89e3\u6790\u6e90\u7801\u751f\u6210 AST<\/li>\n<li>2. \u4f7f\u7528 printer \u5e93\u683c\u5f0f\u5316 AST<\/li>\n<li>3. \u8f93\u51fa\u7ed3\u679c\u4e0e\u7ec6\u8282\u8bf4\u660e<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/li>\n<li>\n<ul>\n<li>1. \u5982\u4f55\u4fdd\u7559 AST \u4e2d\u7684\u4f4d\u7f6e\u4fe1\u606f&#xff1f;<\/li>\n<li>2. \u81ea\u5b9a\u4e49\u7f29\u8fdb\u4e0e\u683c\u5f0f\u98ce\u683c<\/li>\n<li>3. \u5904\u7406\u590d\u6742 AST \u8282\u70b9<\/li>\n<\/ul>\n<\/li>\n<li>\u56db\u3001\u4f7f\u7528\u573a\u666f&#xff1a;printer \u5e93\u7684\u5b9e\u9645\u5e94\u7528<\/li>\n<li>\n<ul>\n<li>1. \u4ee3\u7801\u751f\u6210\u5de5\u5177<\/li>\n<li>2. \u9759\u6001\u5206\u6790\u4e0e\u4ee3\u7801\u68c0\u67e5<\/li>\n<li>3. \u6559\u80b2\u4e0e\u8c03\u8bd5\u5de5\u5177<\/li>\n<\/ul>\n<\/li>\n<li>\u4e94\u3001\u6700\u4f73\u5b9e\u8df5&#xff1a;\u9ad8\u6548\u4f7f\u7528 printer \u5e93\u7684\u6280\u5de7<\/li>\n<li>\n<ul>\n<li>1. \u5408\u7406\u914d\u7f6e &#096;Mode&#096; \u9009\u9879<\/li>\n<li>2. \u7ed3\u5408 &#096;go\/types&#096; \u8fdb\u884c\u7c7b\u578b\u68c0\u67e5<\/li>\n<li>3. \u5904\u7406\u5927\u6587\u4ef6\u6027\u80fd\u4f18\u5316<\/li>\n<\/ul>\n<\/li>\n<li>\u516d\u3001\u603b\u7ed3<\/li>\n<li>\n<ul>\n<li>TAG<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>\u5f15\u8a00<\/h3>\n<p>\u5728 Go \u8bed\u8a00\u7684\u751f\u6001\u4f53\u7cfb\u4e2d&#xff0c;\u4ee3\u7801\u683c\u5f0f\u5316\u4e0e\u8bed\u6cd5\u5904\u7406\u662f\u6784\u5efa\u9ad8\u6548\u5de5\u5177\u94fe\u7684\u6838\u5fc3\u73af\u8282\u3002\u65e0\u8bba\u662f\u5b98\u65b9\u7684 gofmt \u5de5\u5177&#xff0c;\u8fd8\u662f\u5404\u7c7b\u4ee3\u7801\u751f\u6210\u3001\u9759\u6001\u5206\u6790\u6846\u67b6&#xff0c;\u90fd\u4f9d\u8d56\u4e8e\u5bf9\u62bd\u8c61\u8bed\u6cd5\u6811&#xff08;AST&#xff09;\u7684\u7cbe\u51c6\u89e3\u6790\u4e0e\u8f93\u51fa\u3002printer \u5e93\u4f5c\u4e3a Go \u6807\u51c6\u5e93\u4e2d\u5904\u7406 AST \u6253\u5370\u4e0e\u683c\u5f0f\u5316\u7684\u91cd\u8981\u7ec4\u4ef6&#xff0c;\u4e3a\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86\u5c06\u8bed\u6cd5\u6811\u8f6c\u6362\u4e3a\u53ef\u8bfb\u4ee3\u7801\u7684\u5f3a\u5927\u80fd\u529b\u3002\u672c\u6587\u5c06\u4ece\u539f\u7406\u3001\u5b9e\u8df5\u3001\u5e94\u7528\u573a\u666f\u7b49\u7ef4\u5ea6\u6df1\u5ea6\u89e3\u6790 printer \u5e93&#xff0c;\u52a9\u4f60\u638c\u63e1\u8fd9\u4e00\u5e95\u5c42\u6280\u672f\u5de5\u5177\u3002<\/p>\n<h3>\u4e00\u3001\u6838\u5fc3\u77e5\u8bc6&#xff1a;printer \u5e93\u7684\u5e95\u5c42\u903b\u8f91\u4e0e\u6838\u5fc3\u529f\u80fd<\/h3>\n<h4>1. \u5e93\u5b9a\u4f4d\u4e0e\u4f9d\u8d56\u5173\u7cfb<\/h4>\n<p>printer \u5e93&#xff08;\u4f4d\u4e8e golang.org\/x\/tools\/go\/printer&#xff0c;\u9700\u901a\u8fc7 go get \u5b89\u88c5&#xff09;\u662f Go \u5de5\u5177\u94fe\u7684\u5173\u952e\u7ec4\u4ef6&#xff0c;\u4e3b\u8981\u529f\u80fd\u662f\u5c06 AST&#xff08;\u901a\u8fc7 go\/ast \u5305\u751f\u6210&#xff09;\u8f6c\u6362\u4e3a\u7b26\u5408 Go \u8bed\u6cd5\u89c4\u8303\u7684\u6e90\u4ee3\u7801\u3002\u5176\u6838\u5fc3\u4f9d\u8d56\u5305\u62ec&#xff1a;<\/p>\n<ul>\n<li>go\/token&#xff1a;\u7528\u4e8e\u7ba1\u7406\u6e90\u7801\u6587\u4ef6\u7684\u4f4d\u7f6e\u4fe1\u606f&#xff08;\u884c\u53f7\u3001\u5217\u53f7\u7b49&#xff09;&#xff0c;\u786e\u4fdd\u8f93\u51fa\u4ee3\u7801\u7684\u4f4d\u7f6e\u4e0e\u539f\u59cb\u6587\u4ef6\u4e00\u81f4\u3002<\/li>\n<li>go\/ast&#xff1a;\u5b9a\u4e49 AST \u7684\u8282\u70b9\u7ed3\u6784&#xff0c;\u5982 File\u3001FuncDecl\u3001Expr \u7b49\u3002<\/li>\n<li>bytes.Buffer&#xff1a;\u7528\u4e8e\u7f13\u5b58\u8f93\u51fa\u5185\u5bb9&#xff0c;\u652f\u6301\u6d41\u5f0f\u5904\u7406\u3002<\/li>\n<\/ul>\n<h4>2. \u6838\u5fc3\u6570\u636e\u7ed3\u6784&#xff1a;printer.Config<\/h4>\n<p>printer.Config \u662f\u914d\u7f6e\u6253\u5370\u884c\u4e3a\u7684\u6838\u5fc3\u7ed3\u6784\u4f53&#xff0c;\u652f\u6301\u4ee5\u4e0b\u5173\u952e\u53c2\u6570&#xff1a;<\/p>\n<ul>\n<li>Mode&#xff1a;\u63a7\u5236\u8f93\u51fa\u683c\u5f0f&#xff0c;\u5982\u662f\u5426\u6dfb\u52a0\u6ce8\u91ca&#xff08;printer.UseSpaces \u63a7\u5236\u7f29\u8fdb\u65b9\u5f0f&#xff0c;printer.TabIndent \u4f7f\u7528\u5236\u8868\u7b26&#xff09;\u3001\u662f\u5426\u4fdd\u7559\u539f\u59cb\u683c\u5f0f&#xff08;printer.SourcePos \u8bb0\u5f55\u4f4d\u7f6e\u4fe1\u606f&#xff09;\u7b49\u3002<\/li>\n<li>Indent&#xff1a;\u6307\u5b9a\u7f29\u8fdb\u5bbd\u5ea6&#xff08;\u914d\u5408 Mode \u4e2d\u7684\u7a7a\u683c\u6216\u5236\u8868\u7b26\u9009\u9879&#xff09;\u3002<\/li>\n<li>CommentWriter&#xff1a;\u81ea\u5b9a\u4e49\u6ce8\u91ca\u5904\u7406\u903b\u8f91&#xff0c;\u7528\u4e8e\u63a7\u5236\u6ce8\u91ca\u7684\u4fdd\u7559\u4e0e\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n<h4>3. \u6838\u5fc3\u65b9\u6cd5&#xff1a;Fprint \u4e0e Print<\/h4>\n<p>printer.Fprint \u662f\u6838\u5fc3\u6253\u5370\u65b9\u6cd5&#xff0c;\u63a5\u6536 io.Writer\u3001token.FileSet\u3001ast.Node \u4f5c\u4e3a\u53c2\u6570&#xff0c;\u5c06 AST \u8282\u70b9\u683c\u5f0f\u5316\u4e3a\u4ee3\u7801\u5e76\u5199\u5165\u8f93\u51fa\u6d41\u3002\u793a\u4f8b\u7528\u6cd5&#xff1a;<\/p>\n<p><span class=\"token keyword\">var<\/span> buf bytes<span class=\"token punctuation\">.<\/span>Buffer<br \/>\ncfg <span class=\"token operator\">:&#061;<\/span> printer<span class=\"token punctuation\">.<\/span>Config<span class=\"token punctuation\">{<\/span>Mode<span class=\"token punctuation\">:<\/span> printer<span class=\"token punctuation\">.<\/span>UseSpaces <span class=\"token operator\">|<\/span> printer<span class=\"token punctuation\">.<\/span>TabIndent<span class=\"token punctuation\">,<\/span> Indent<span class=\"token punctuation\">:<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">}<\/span><br \/>\ncfg<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fprint<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>buf<span class=\"token punctuation\">,<\/span> fset<span class=\"token punctuation\">,<\/span> astNode<span class=\"token punctuation\">)<\/span><br \/>\nformattedCode <span class=\"token operator\">:&#061;<\/span> buf<span class=\"token punctuation\">.<\/span><span class=\"token function\">String<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h3>\u4e8c\u3001\u4ee3\u7801\u793a\u4f8b&#xff1a;\u4ece AST \u5230\u683c\u5f0f\u5316\u4ee3\u7801\u7684\u5b8c\u6574\u6d41\u7a0b<\/h3>\n<h4>1. \u89e3\u6790\u6e90\u7801\u751f\u6210 AST<\/h4>\n<p>\u9996\u5148\u4f7f\u7528 go\/parser \u89e3\u6790\u6e90\u7801\u6587\u4ef6&#xff0c;\u751f\u6210 AST&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> main<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token punctuation\">(<\/span><br \/>\n<span class=\"token string\">&#034;bytes&#034;<\/span><br \/>\n<span class=\"token string\">&#034;go\/ast&#034;<\/span><br \/>\n<span class=\"token string\">&#034;go\/parser&#034;<\/span><br \/>\n<span class=\"token string\">&#034;go\/printer&#034;<\/span><br \/>\n<span class=\"token string\">&#034;go\/token&#034;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\nsrc <span class=\"token operator\">:&#061;<\/span> <span class=\"token string\">&#096;<br \/>\npackage example<\/p>\n<p>func HelloWorld() {<br \/>\nprintln(&#034;Hello, World!&#034;)<br \/>\n}&#096;<\/span><br \/>\nfset <span class=\"token operator\">:&#061;<\/span> token<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewFileSet<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u8bb0\u5f55\u6587\u4ef6\u4f4d\u7f6e<\/span><br \/>\nfile<span class=\"token punctuation\">,<\/span> err <span class=\"token operator\">:&#061;<\/span> parser<span class=\"token punctuation\">.<\/span><span class=\"token function\">ParseFile<\/span><span class=\"token punctuation\">(<\/span>fset<span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#034;example.go&#034;<\/span><span class=\"token punctuation\">,<\/span> src<span class=\"token punctuation\">,<\/span> parser<span class=\"token punctuation\">.<\/span>ParseComments<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">panic<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u4f7f\u7528 printer \u5e93\u683c\u5f0f\u5316 AST<\/h4>\n<p>\u901a\u8fc7\u914d\u7f6e printer.Config \u5e76\u8c03\u7528 Fprint \u8f93\u51fa\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">var<\/span> buf bytes<span class=\"token punctuation\">.<\/span>Buffer<br \/>\ncfg <span class=\"token operator\">:&#061;<\/span> printer<span class=\"token punctuation\">.<\/span>Config<span class=\"token punctuation\">{<\/span><br \/>\nMode<span class=\"token punctuation\">:<\/span>  printer<span class=\"token punctuation\">.<\/span>UseSpaces <span class=\"token operator\">|<\/span> printer<span class=\"token punctuation\">.<\/span>TabIndent<span class=\"token punctuation\">,<\/span> <span class=\"token comment\">\/\/ \u4f7f\u7528\u7a7a\u683c\u7f29\u8fdb<\/span><br \/>\nIndent<span class=\"token punctuation\">:<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">,<\/span>                                    <span class=\"token comment\">\/\/ \u7f29\u8fdb\u5bbd\u5ea6\u4e3a4<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">if<\/span> err <span class=\"token operator\">:&#061;<\/span> cfg<span class=\"token punctuation\">.<\/span><span class=\"token function\">Fprint<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>buf<span class=\"token punctuation\">,<\/span> fset<span class=\"token punctuation\">,<\/span> file<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> err <span class=\"token operator\">!&#061;<\/span> <span class=\"token boolean\">nil<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">panic<\/span><span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span>buf<span class=\"token punctuation\">.<\/span><span class=\"token function\">String<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token comment\">\/\/ \u8f93\u51fa\u683c\u5f0f\u5316\u540e\u7684\u4ee3\u7801<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u8f93\u51fa\u7ed3\u679c\u4e0e\u7ec6\u8282\u8bf4\u660e<\/h4>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u5c06\u751f\u6210\u6807\u51c6\u7684 Go \u683c\u5f0f\u5316\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">package<\/span> example<\/p>\n<p><span class=\"token keyword\">func<\/span> <span class=\"token function\">HelloWorld<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Hello, World!&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<ul>\n<li>printer.UseSpaces \u786e\u4fdd\u4f7f\u7528\u7a7a\u683c\u800c\u975e\u5236\u8868\u7b26\u7f29\u8fdb\u3002<\/li>\n<li>parser.ParseComments \u4fdd\u7559\u539f\u59cb\u6ce8\u91ca&#xff0c;printer \u4f1a\u81ea\u52a8\u5904\u7406\u6ce8\u91ca\u4e0e\u4ee3\u7801\u7684\u4f4d\u7f6e\u5173\u7cfb\u3002<\/li>\n<\/ul>\n<h3>\u4e09\u3001\u5e38\u89c1\u95ee\u9898\u4e0e\u89e3\u51b3\u65b9\u6848<\/h3>\n<h4>1. \u5982\u4f55\u4fdd\u7559 AST \u4e2d\u7684\u4f4d\u7f6e\u4fe1\u606f&#xff1f;<\/h4>\n<p>\u82e5\u9700\u5728\u751f\u6210\u7684\u4ee3\u7801\u4e2d\u8bb0\u5f55\u539f\u59cb\u6587\u4ef6\u7684\u884c\u53f7\u3001\u5217\u53f7&#xff08;\u5982\u9519\u8bef\u63d0\u793a\u573a\u666f&#xff09;&#xff0c;\u9700\u5728 printer.Config \u4e2d\u542f\u7528 printer.SourcePos \u6a21\u5f0f&#xff0c;\u5e76\u901a\u8fc7 token.FileSet \u4f20\u9012\u4f4d\u7f6e\u4fe1\u606f&#xff1a;<\/p>\n<p>cfg <span class=\"token operator\">:&#061;<\/span> printer<span class=\"token punctuation\">.<\/span>Config<span class=\"token punctuation\">{<\/span>Mode<span class=\"token punctuation\">:<\/span> printer<span class=\"token punctuation\">.<\/span>SourcePos<span class=\"token punctuation\">}<\/span><\/p>\n<h4>2. \u81ea\u5b9a\u4e49\u7f29\u8fdb\u4e0e\u683c\u5f0f\u98ce\u683c<\/h4>\n<p>\u82e5\u9700\u5b9e\u73b0\u975e\u6807\u51c6\u7f29\u8fdb&#xff08;\u5982 2 \u4e2a\u7a7a\u683c\u7f29\u8fdb&#xff09;&#xff0c;\u76f4\u63a5\u4fee\u6539 Indent \u53c2\u6570\u5373\u53ef&#xff1a;<\/p>\n<p>cfg <span class=\"token operator\">:&#061;<\/span> printer<span class=\"token punctuation\">.<\/span>Config<span class=\"token punctuation\">{<\/span>Mode<span class=\"token punctuation\">:<\/span> printer<span class=\"token punctuation\">.<\/span>UseSpaces<span class=\"token punctuation\">,<\/span> Indent<span class=\"token punctuation\">:<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u5904\u7406\u590d\u6742 AST \u8282\u70b9<\/h4>\n<p>\u5f53\u5904\u7406\u5305\u542b Interface\u3001Struct\u3001Select \u7b49\u590d\u6742\u8bed\u6cd5\u7684 AST \u65f6&#xff0c;printer \u5e93\u4f1a\u81ea\u52a8\u9075\u5faa Go \u8bed\u8a00\u7684\u8bed\u6cd5\u89c4\u5219&#xff0c;\u65e0\u9700\u989d\u5916\u5904\u7406\u3002\u4f46\u9700\u6ce8\u610f&#xff1a;<\/p>\n<ul>\n<li>\u786e\u4fdd AST \u8282\u70b9\u5b8c\u6574&#xff08;\u5982\u7c7b\u578b\u5b9a\u4e49\u3001\u51fd\u6570\u7b7e\u540d\u65e0\u7f3a\u5931&#xff09;\u3002<\/li>\n<li>\u5bf9\u4e8e\u672a\u89e3\u6790\u7684\u6807\u8bc6\u7b26&#xff0c;\u9700\u624b\u52a8\u7ed1\u5b9a\u4f5c\u7528\u57df&#xff08;\u901a\u8fc7 go\/types \u5305&#xff09;\u3002<\/li>\n<\/ul>\n<h3>\u56db\u3001\u4f7f\u7528\u573a\u666f&#xff1a;printer \u5e93\u7684\u5b9e\u9645\u5e94\u7528<\/h3>\n<h4>1. \u4ee3\u7801\u751f\u6210\u5de5\u5177<\/h4>\n<ul>\n<li>\u573a\u666f&#xff1a;\u6839\u636e\u6a21\u677f\u6216\u5143\u6570\u636e\u751f\u6210 Go \u4ee3\u7801&#xff08;\u5982 ORM \u6a21\u578b\u3001API \u5ba2\u6237\u7aef&#xff09;\u3002<\/li>\n<li>\u4f18\u52bf&#xff1a;\u76f4\u63a5\u64cd\u4f5c AST \u786e\u4fdd\u751f\u6210\u4ee3\u7801\u7684\u8bed\u6cd5\u6b63\u786e\u6027&#xff0c;\u907f\u514d\u5b57\u7b26\u4e32\u62fc\u63a5\u5e26\u6765\u7684\u9519\u8bef\u3002<\/li>\n<\/ul>\n<h4>2. \u9759\u6001\u5206\u6790\u4e0e\u4ee3\u7801\u68c0\u67e5<\/h4>\n<ul>\n<li>\u573a\u666f&#xff1a;\u5b9e\u73b0\u81ea\u5b9a\u4e49\u4ee3\u7801\u68c0\u67e5\u5de5\u5177&#xff08;\u5982\u7981\u6b62\u4f7f\u7528 unsafe \u5305\u3001\u5f3a\u5236\u51fd\u6570\u6ce8\u91ca&#xff09;&#xff0c;\u5206\u6790 AST \u540e\u91cd\u65b0\u6253\u5370\u5408\u89c4\u4ee3\u7801\u3002<\/li>\n<li>\u5b9e\u8df5&#xff1a;\u4fee\u6539 AST \u8282\u70b9&#xff08;\u5982\u5220\u9664\u975e\u6cd5\u8c03\u7528&#xff09;&#xff0c;\u518d\u901a\u8fc7 printer \u8f93\u51fa\u4fee\u6b63\u540e\u7684\u4ee3\u7801\u3002<\/li>\n<\/ul>\n<h4>3. \u6559\u80b2\u4e0e\u8c03\u8bd5\u5de5\u5177<\/h4>\n<ul>\n<li>\u573a\u666f&#xff1a;\u5f00\u53d1 Go \u8bed\u6cd5\u53ef\u89c6\u5316\u5de5\u5177&#xff0c;\u5c06 AST \u7ed3\u6784\u5b9e\u65f6\u8f6c\u6362\u4e3a\u4ee3\u7801&#xff0c;\u8f85\u52a9\u7406\u89e3\u8bed\u6cd5\u89c4\u5219\u3002<\/li>\n<li>\u6848\u4f8b&#xff1a;\u901a\u8fc7 printer \u8f93\u51fa\u7b80\u5316\u540e\u7684\u4ee3\u7801\u7247\u6bb5&#xff0c;\u7528\u4e8e\u6559\u5b66\u6f14\u793a\u3002<\/li>\n<\/ul>\n<h3>\u4e94\u3001\u6700\u4f73\u5b9e\u8df5&#xff1a;\u9ad8\u6548\u4f7f\u7528 printer \u5e93\u7684\u6280\u5de7<\/h3>\n<h4>1. \u5408\u7406\u914d\u7f6e Mode \u9009\u9879<\/h4>\n<p>\u6839\u636e\u9700\u6c42\u7ec4\u5408 Mode \u6807\u5fd7&#xff1a;<\/p>\n<ul>\n<li>printer.UseSpaces &#043; Indent: 4&#xff1a;\u6807\u51c6 Go \u683c\u5f0f&#xff08;\u540c gofmt&#xff09;\u3002<\/li>\n<li>printer.TabIndent &#043; Indent: 1&#xff1a;\u4f7f\u7528\u5236\u8868\u7b26\u7f29\u8fdb&#xff08;\u9002\u5408\u65e7\u4ee3\u7801\u517c\u5bb9&#xff09;\u3002<\/li>\n<li>printer.DocComments&#xff1a;\u4fdd\u7559\u6587\u6863\u6ce8\u91ca&#xff08;\/\/ \u6216 \/* *\/ \u683c\u5f0f&#xff09;\u3002<\/li>\n<\/ul>\n<h4>2. \u7ed3\u5408 go\/types \u8fdb\u884c\u7c7b\u578b\u68c0\u67e5<\/h4>\n<p>\u5728\u751f\u6210\u4ee3\u7801\u524d&#xff0c;\u901a\u8fc7 go\/types \u5305\u89e3\u6790\u7c7b\u578b\u4fe1\u606f&#xff0c;\u786e\u4fdd AST \u8282\u70b9\u7684\u7c7b\u578b\u6b63\u786e\u6027&#xff0c;\u907f\u514d\u6253\u5370\u65e0\u6548\u4ee3\u7801&#xff1a;<\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token string\">&#034;go\/types&#034;<\/span><br \/>\ninfo <span class=\"token operator\">:&#061;<\/span> types<span class=\"token punctuation\">.<\/span>Info<span class=\"token punctuation\">{<\/span>Types<span class=\"token punctuation\">:<\/span> <span class=\"token function\">make<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">map<\/span><span class=\"token punctuation\">[<\/span>ast<span class=\"token punctuation\">.<\/span>Expr<span class=\"token punctuation\">]<\/span>types<span class=\"token punctuation\">.<\/span>TypeAndValue<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">}<\/span><br \/>\ntypes<span class=\"token punctuation\">.<\/span><span class=\"token function\">Check<\/span><span class=\"token punctuation\">(<\/span>file<span class=\"token punctuation\">,<\/span> types<span class=\"token punctuation\">.<\/span><span class=\"token function\">NewChecker<\/span><span class=\"token punctuation\">(<\/span>fset<span class=\"token punctuation\">,<\/span> types<span class=\"token punctuation\">.<\/span>ScanComments<span class=\"token punctuation\">,<\/span> <span class=\"token operator\">&amp;<\/span>info<span class=\"token punctuation\">,<\/span> <span class=\"token boolean\">nil<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<h4>3. \u5904\u7406\u5927\u6587\u4ef6\u6027\u80fd\u4f18\u5316<\/h4>\n<p>\u5bf9\u4e8e\u5927\u89c4\u6a21\u4ee3\u7801\u6587\u4ef6&#xff0c;\u5efa\u8bae\u4f7f\u7528\u7f13\u51b2\u5199\u5165&#xff08;bytes.Buffer&#xff09;\u800c\u975e\u76f4\u63a5\u8f93\u51fa\u5230\u7ec8\u7aef&#xff0c;\u51cf\u5c11 I\/O \u5f00\u9500\u3002\u540c\u65f6&#xff0c;\u907f\u514d\u9891\u7e41\u521b\u5efa printer.Config \u5b9e\u4f8b&#xff0c;\u590d\u7528\u914d\u7f6e\u5bf9\u8c61\u63d0\u5347\u6548\u7387\u3002<\/p>\n<h3>\u516d\u3001\u603b\u7ed3<\/h3>\n<p>printer \u5e93\u662f Go \u8bed\u8a00\u5de5\u5177\u94fe\u4e2d\u201c\u4ece AST \u5230\u4ee3\u7801\u201d\u7684\u6865\u6881&#xff0c;\u638c\u63e1\u5176\u6838\u5fc3\u539f\u7406\u4e0e\u7528\u6cd5&#xff0c;\u80fd\u5e2e\u52a9\u5f00\u53d1\u8005\u6784\u5efa\u66f4\u5f3a\u5927\u7684\u4ee3\u7801\u5904\u7406\u5de5\u5177\u3002\u65e0\u8bba\u662f\u5b9e\u73b0\u81ea\u5b9a\u4e49\u683c\u5f0f\u5316\u903b\u8f91&#xff0c;\u8fd8\u662f\u5f00\u53d1\u4ee3\u7801\u751f\u6210\u6846\u67b6&#xff0c;printer \u5e93\u90fd\u80fd\u63d0\u4f9b\u5e95\u5c42\u652f\u6301\u3002\u5176\u8bbe\u8ba1\u601d\u60f3\u4e5f\u4f53\u73b0\u4e86 Go \u8bed\u8a00\u201c\u7b80\u6d01\u800c\u5f3a\u5927\u201d\u7684\u54f2\u5b66\u2014\u2014\u901a\u8fc7\u6807\u51c6\u5316\u7684\u63a5\u53e3&#xff0c;\u8ba9\u590d\u6742\u7684\u8bed\u6cd5\u5904\u7406\u53d8\u5f97\u53ef\u590d\u7528\u3001\u53ef\u6269\u5c55\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5728\u4f7f\u7528 printer \u5e93\u65f6\u9047\u5230\u7279\u6b8a\u573a\u666f\u6216\u6709\u8da3\u6848\u4f8b&#xff0c;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u5206\u4eab&#xff01;\u89c9\u5f97\u672c\u6587\u6709\u7528\u7684\u8bdd&#xff0c;\u522b\u5fd8\u4e86\u70b9\u8d5e\u3001\u6536\u85cf\u5e76\u8f6c\u53d1\u7ed9\u66f4\u591a Go \u5f00\u53d1\u8005&#xff5e;<\/p>\n<h4>TAG<\/h4>\n<p>#Go\u8bed\u8a00 #\u6807\u51c6\u5e93 #printer\u5e93 #AST #\u4ee3\u7801\u683c\u5f0f\u5316 #\u5de5\u5177\u94fe\u5f00\u53d1 #\u9759\u6001\u5206\u6790 #\u4ee3\u7801\u751f\u6210<\/p>\n<p>\u4e92\u52a8\u65f6\u95f4&#xff1a;\u4f60\u662f\u5426\u66fe\u7528 printer \u5e93\u5b9e\u73b0\u8fc7\u81ea\u5b9a\u4e49\u5de5\u5177&#xff1f;\u9047\u5230\u8fc7\u54ea\u4e9b\u6709\u8da3\u7684\u6311\u6218&#xff1f;\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u7559\u8a00\u8ba8\u8bba&#xff0c;\u4e5f\u53ef\u4ee5\u5206\u4eab\u4f60\u5e0c\u671b\u6df1\u5165\u4e86\u89e3\u7684 Go \u8bed\u8a00\u5e95\u5c42\u6280\u672f\u8bdd\u9898&#xff01;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e40\u6b21\uff0c\u6536\u85cf22\u6b21\u3002\u672c\u6587\u6df1\u5165\u89e3\u6790\u4e86 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684 printer \u5e93\uff0c\u8fd9\u662f\u4e00\u4e2a\u5c06\u62bd\u8c61\u8bed\u6cd5\u6811\uff08AST\uff09\u8f6c\u6362\u4e3a\u683c\u5f0f\u5316\u4ee3\u7801\u7684\u5173\u952e\u5de5\u5177\u3002\u6587\u7ae0\u4ece\u6838\u5fc3\u539f\u7406\u3001\u4ee3\u7801\u793a\u4f8b\u3001\u5e38\u89c1\u95ee\u9898\u5230\u5b9e\u9645\u5e94\u7528\u573a\u666f\uff0c\u8be6\u7ec6\u4ecb\u7ecd\u4e86 printer \u5e93\u7684\u529f\u80fd\u4e0e\u4f7f\u7528\u65b9\u6cd5\u3002\u91cd\u70b9\u8bb2\u89e3\u4e86 printer.Config \u7684\u914d\u7f6e\u9009\u9879\u3001Fprint\u65b9\u6cd5\u7684\u8fd0\u7528\uff0c\u4ee5\u53ca\u5982\u4f55\u7ed3\u5408 go\/types \u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u3002\u6b64\u5916\uff0c\u8fd8\u63d0\u4f9b\u4e86\u4ee3\u7801\u751f\u6210\u3001\u9759\u6001\u5206\u6790\u7b49\u5178\u578b\u573a\u666f\u4e0b\u7684\u6700\u4f73\u5b9e\u8df5\u65b9\u6848\u3002\u6587\u7ae0\u6700\u540e\u603b\u7ed3\u4e86 printer \u5e93\u5728 Go \u5de5\u5177\u94fe\u4e2d\u7684\u91cd\u8981\u6027\uff0c\u5e76\u9f13\u52b1\u5f00\u53d1\u8005\u5206\u4eab\u4f7f\u7528\u7ecf\u9a8c\u3002<\/p>\n","protected":false},"author":2,"featured_media":47480,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[4551,746,4550],"topic":[],"class_list":["post-47481","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-go-","tag-golang","tag-go"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668\uff1aprinter \u5e93 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/47481.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6df1\u5165\u7406\u89e3 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684\u4ee3\u7801\u683c\u5f0f\u5316\u5229\u5668\uff1aprinter \u5e93 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb1.1k\u6b21\uff0c\u70b9\u8d5e40\u6b21\uff0c\u6536\u85cf22\u6b21\u3002\u672c\u6587\u6df1\u5165\u89e3\u6790\u4e86 Go \u8bed\u8a00\u6807\u51c6\u5e93\u4e2d\u7684 printer 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