{"id":206108,"date":"2025-06-12T11:24:54","date_gmt":"2025-06-12T03:24:54","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206108\/"},"modified":"2025-06-12T11:24:54","modified_gmt":"2025-06-12T03:24:54","slug":"go%e8%af%ad%e8%a8%80%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a1%ae%e6%8e%a5%e6%94%b6%e5%92%8c%e5%a4%84%e7%90%86dll%e8%bf%94%e5%9b%9e%e7%9a%84char%e7%b1%bb%e5%9e%8b%e5%80%bc%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206108\/","title":{"rendered":"Go\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f"},"content":{"rendered":"<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/1730631993672759391ce33.jpg\" class=\"aligncenter\">,<br \/>\n<strong>go\u4e2d\u8c03\u7528dll\u63a5\u6536char*\u8fd4\u56de\u503c<\/strong>,<br \/>\n<strong>\u95ee\u9898\u63cf\u8ff0\uff1a<\/strong>,go\u7a0b\u5e8f\u8c03\u7528dll\u65f6\uff0cdll\u51fd\u6570\u8fd4\u56de\u4e00\u4e2achar*\u7c7b\u578b\u7684\u503c\uff0c\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406\u8be5\u8fd4\u56de\u503c\uff1f\u73b0\u6709\u7684\u4ee3\u7801\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u6216\u5e76\u53d1\u95ee\u9898\u3002,<br \/>\n<strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong>,<br \/>\n<strong>1. \u5185\u5b58\u6cc4\u6f0f\u95ee\u9898<\/strong>,\u73b0\u6709\u7684\u4ee3\u7801\u4e2d\uff0c\u4ecedll\u83b7\u53d6\u7684char<br \/>\n<em>\u5185\u5b58\u672a\u91ca\u653e\uff0c\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u4f7f\u7528cgo\u5c06char<\/em>\u8f6c\u6362\u4e3ago string\uff0c\u8fd9\u6837\u53ef\u4ee5\u7531go\u5783\u573e\u56de\u6536\u5668\u81ea\u52a8\u91ca\u653e\u5185\u5b58\u3002,<br \/>\n<strong>2. \u8b66\u544a\uff1a\u53ef\u80fd\u7684unsafe.pointer\u8bef\u7528<\/strong>,\u5c06uintptr\u8f6c\u6362\u4e3aunsafe.pointer\u7c7b\u578b\u65f6\u51fa\u73b0\u7684\u8b66\u544a\u662f\u5408\u6cd5\u7684\uff0c\u56e0\u4e3auintptr\u5e76\u4e0d\u76f4\u63a5\u6620\u5c04\u5230void*\u7c7b\u578b\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6bb5\u9519\u8bef\u3002\u6b63\u786e\u7684\u8f6c\u6362\u65b9\u6cd5\u662f\u4f7f\u7528c.int\u6216c.uintptr\u7c7b\u578b\uff0c\u4f8b\u5982unsafe.pointer(c.int(p))\u6216unsafe.pointer(c.uintptr(p))\u3002,<br \/>\n<strong>3. \u66f4\u4f73\u7684\u5199\u6cd5\uff1a<\/strong>,\u53ef\u4ee5\u4f7f\u7528cgo\u4e2d\u7684gostring\u51fd\u6570\u5c06dll\u8fd4\u56de\u7684char*\u8f6c\u6362\u4e3ago string\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a,\u8fd9\u79cd\u65b9\u6cd5\u907f\u514d\u4e86\u5185\u5b58\u6cc4\u6f0f\uff0c\u4e0d\u9700\u8981\u624b\u52a8\u91ca\u653e\u5185\u5b58\uff0c\u540c\u65f6\u4e0d\u4f1a\u4ea7\u751f\u8b66\u544a\u3002,\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002,go\u4e2d\u8c03\u7528dll\u63a5\u6536char*\u8fd4\u56de\u503c,\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<br \/>\n<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\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\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f<\/span><\/p>\n<h1>Go\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f<\/h1>\n<p><span>2024-11-03 19:06:48<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aGo\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f\u300b<\/span>\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241103\/1730631993672759391ce33.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>go\u4e2d\u8c03\u7528dll\u63a5\u6536char*\u8fd4\u56de\u503c<\/strong><\/p>\n<p><strong>\u95ee\u9898\u63cf\u8ff0\uff1a<\/strong><\/p>\n<p>go\u7a0b\u5e8f\u8c03\u7528dll\u65f6\uff0cdll\u51fd\u6570\u8fd4\u56de\u4e00\u4e2achar*\u7c7b\u578b\u7684\u503c\uff0c\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406\u8be5\u8fd4\u56de\u503c\uff1f\u73b0\u6709\u7684\u4ee3\u7801\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u6216\u5e76\u53d1\u95ee\u9898\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p><strong>1. \u5185\u5b58\u6cc4\u6f0f\u95ee\u9898<\/strong><\/p>\n<p>\u73b0\u6709\u7684\u4ee3\u7801\u4e2d\uff0c\u4ecedll\u83b7\u53d6\u7684char<em>\u5185\u5b58\u672a\u91ca\u653e\uff0c\u4f1a\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002\u89e3\u51b3\u65b9\u6cd5\u662f\u4f7f\u7528cgo\u5c06char<\/em>\u8f6c\u6362\u4e3ago string\uff0c\u8fd9\u6837\u53ef\u4ee5\u7531go\u5783\u573e\u56de\u6536\u5668\u81ea\u52a8\u91ca\u653e\u5185\u5b58\u3002<\/p>\n<p><strong>2. \u8b66\u544a\uff1a\u53ef\u80fd\u7684unsafe.pointer\u8bef\u7528<\/strong><\/p>\n<p>\u5c06uintptr\u8f6c\u6362\u4e3aunsafe.pointer\u7c7b\u578b\u65f6\u51fa\u73b0\u7684\u8b66\u544a\u662f\u5408\u6cd5\u7684\uff0c\u56e0\u4e3auintptr\u5e76\u4e0d\u76f4\u63a5\u6620\u5c04\u5230void*\u7c7b\u578b\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6bb5\u9519\u8bef\u3002\u6b63\u786e\u7684\u8f6c\u6362\u65b9\u6cd5\u662f\u4f7f\u7528c.int\u6216c.uintptr\u7c7b\u578b\uff0c\u4f8b\u5982unsafe.pointer(c.int(p))\u6216unsafe.pointer(c.uintptr(p))\u3002<\/p>\n<p><strong>3. \u66f4\u4f73\u7684\u5199\u6cd5\uff1a<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528cgo\u4e2d\u7684gostring\u51fd\u6570\u5c06dll\u8fd4\u56de\u7684char*\u8f6c\u6362\u4e3ago string\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>package main\n\nimport (\n    \"C\"\n    \"fmt\"\n    \"syscall\"\n    \"unsafe\"\n)\n\nfunc main() {\n    dll := syscall.MustLoadDLL(\"my_dll.dll\")\n    r1, _, _ := dll.MustFindProc(\"echo\").Call()\n    str := C.GoString((*C.char)(unsafe.Pointer(r1)))\n    fmt.Println(str)\n}<\/pre>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u907f\u514d\u4e86\u5185\u5b58\u6cc4\u6f0f\uff0c\u4e0d\u9700\u8981\u624b\u52a8\u91ca\u653e\u5185\u5b58\uff0c\u540c\u65f6\u4e0d\u4f1a\u4ea7\u751f\u8b66\u544a\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aGo\u8bed\u8a00\u5982\u4f55\u6b63\u786e\u63a5\u6536\u548c\u5904\u7406DLL\u8fd4\u56de\u7684char*\u7c7b\u578b\u503c\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528 JavaScript \u548c HTML \u5b9e\u73b0 JSON \u6570\u636e\u7684\u53ef\u6298\u53e0\u5c55\u5f00\u529f\u80fd\uff1f\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u7528 JavaScript \u5b9e\u73b0\u6587\u672c\u6846\u6821\u9a8c\u5e76\u5728\u9519\u8bef\u4fe1\u606f\u524d\u6dfb\u52a0\u56fe\u7247\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5&#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-206108","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206108","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=206108"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206108\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}