{"id":60207,"date":"2024-10-13T00:56:20","date_gmt":"2024-10-12T16:56:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60207\/"},"modified":"2024-10-13T00:56:20","modified_gmt":"2024-10-12T16:56:20","slug":"c%e8%aa%9e%e8%a8%80%e4%b8%ad%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e8%a9%b3%e8%a7%a3-c%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60207\/","title":{"rendered":"C\u8a9e\u8a00\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u67e5\u8a62\u8a73\u89e3 (c\u9023\u63a5\u6578\u64da\u5eab\u67e5\u8a62)"},"content":{"rendered":"<h1 id=\"c%e8%aa%9e%e8%a8%80%e4%b8%ad%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e8%a9%b3%e8%a7%a3-c%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2-nIFIubrGaO\">C\u8a9e\u8a00\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u67e5\u8a62\u8a73\u89e3 (C\u9023\u63a5\u6578\u64da\u5eab\u67e5\u8a62)<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u666e\u904d\u3002C\u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u5e95\u5c64\u7de8\u7a0b\u8a9e\u8a00\uff0c\u96d6\u7136\u4e0d\u5982\u9ad8\u7d1a\u8a9e\u8a00\u90a3\u6a23\u76f4\u89c0\uff0c\u4f46\u5b83\u4ecd\u7136\u53ef\u4ee5\u6709\u6548\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u3002<\/p>\n<h2 id=\"1-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%81%b8%e6%93%87-nIFIubrGaO\">1. \u6578\u64da\u5eab\u7684\u9078\u64c7<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u9078\u64c7\u4e00\u500b\u5408\u9069\u7684\u6578\u64da\u5eab\u3002\u5e38\u898b\u7684\u9078\u64c7\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>MySQL<\/li>\n<li>PostgreSQL<\/li>\n<li>SQLite<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u6578\u64da\u5eab\u5404\u6709\u7279\u9ede\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u4ee5MySQL\u70ba\u4f8b\u9032\u884c\u8aaa\u660e\u3002<\/p>\n<h2 id=\"2-%e5%ae%89%e8%a3%9dmysql%e9%96%8b%e7%99%bc%e5%ba%ab-nIFIubrGaO\">2. \u5b89\u88ddMySQL\u958b\u767c\u5eab<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\u9023\u63a5MySQL\u6578\u64da\u5eab\uff0c\u9996\u5148\u9700\u8981\u5b89\u88ddMySQL\u7684\u958b\u767c\u5eab\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u5728Linux\u7cfb\u7d71\u4e0a\u5b89\u88dd\uff1a<\/p>\n<pre><code>sudo apt-get install libmysqlclient-dev<\/code><\/pre>\n<h2 id=\"3-%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-nIFIubrGaO\">3. \u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\u9023\u63a5MySQL\u6578\u64da\u5eab\u9700\u8981\u4f7f\u7528MySQL C API\u3002\u4ee5\u4e0b\u662f\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>\n#include \n#include \n\nint main() {\n    MYSQL *conn;\n    conn = mysql_init(NULL);\n\n    if (conn == NULL) {\n        fprintf(stderr, \"mysql_init() failedn\");\n        return EXIT_FAILURE;\n    }\n\n    if (mysql_real_connect(conn, \"localhost\", \"user\", \"password\", \"database\", 0, NULL, 0) == NULL) {\n        fprintf(stderr, \"mysql_real_connect() failedn\");\n        mysql_close(conn);\n        return EXIT_FAILURE;\n    }\n\n    printf(\"Connected to database successfully!n\");\n    mysql_close(conn);\n    return EXIT_SUCCESS;\n}\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u78bc\u4e2d\uff0c\u8acb\u5c07\u201clocalhost\u201d\u3001\u201cuser\u201d\u3001\u201cpassword\u201d\u548c\u201cdatabase\u201d\u66ff\u63db\u70ba\u5be6\u969b\u7684\u6578\u64da\u5eab\u4e3b\u6a5f\u3001\u7528\u6236\u540d\u3001\u5bc6\u78bc\u548c\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n<h2 id=\"4-%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2-nIFIubrGaO\">4. \u57f7\u884c\u67e5\u8a62<\/h2>\n<p>\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u57f7\u884c\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nMYSQL_RES *res;\nMYSQL_ROW row;\n\nif (mysql_query(conn, \"SELECT * FROM table_name\")) {\n    fprintf(stderr, \"SELECT * failed. Error: %sn\", mysql_error(conn));\n    return EXIT_FAILURE;\n}\n\nres = mysql_store_result(conn);\nif (res == NULL) {\n    fprintf(stderr, \"mysql_store_result() failed. Error: %sn\", mysql_error(conn));\n    return EXIT_FAILURE;\n}\n\nwhile ((row = mysql_fetch_row(res)) != NULL) {\n    printf(\"%sn\", row[0]); \/\/ \u5047\u8a2d\u7b2c\u4e00\u5217\u662f\u9700\u8981\u7684\u6578\u64da\n}\n\nmysql_free_result(res);\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u8acb\u5c07\u201ctable_name\u201d\u66ff\u63db\u70ba\u5be6\u969b\u7684\u8868\u540d\u3002\u67e5\u8a62\u7d50\u679c\u5c07\u4ee5\u884c\u7684\u5f62\u5f0f\u8fd4\u56de\uff0c\u4e26\u53ef\u4ee5\u901a\u904e\u5faa\u74b0\u904d\u6b77\u3002<\/p>\n<h2 id=\"5-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-nIFIubrGaO\">5. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4f7f\u7528mysql_error()\u51fd\u6578\u53ef\u4ee5\u7372\u53d6\u6700\u8fd1\u4e00\u6b21\u64cd\u4f5c\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u9019\u5c0d\u65bc\u8abf\u8a66\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"6-%e7%b8%bd%e7%b5%90-nIFIubrGaO\">6. \u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u9023\u63a5MySQL\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u3002\u901a\u904e\u5b89\u88dd\u5fc5\u8981\u7684\u958b\u767c\u5eab\u3001\u7de8\u5beb\u9023\u63a5\u4ee3\u78bc\u548c\u57f7\u884c\u67e5\u8a62\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528C\u8a9e\u8a00\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u7684\u61c9\u7528\uff0cC\u8a9e\u8a00\u662f\u4e00\u500b\u4e0d\u932f\u7684\u9078\u64c7\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u63a2\u8a0eC\u8a9e\u8a00\u4e2d\u5982\u4f55\u9023\u63a5\u6578\u64da\u5eab\uff0c\u5be6\u73fe\u9ad8\u6548\u67e5\u8a62\uff0c\u63d0\u4f9b\u5be6\u7528\u7bc4\u4f8b\u8207\u6280\u5de7\uff0c\u52a9\u4f60\u8f15\u9b06\u638c\u63e1\u6578\u64da\u64cd\u4f5c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-60207","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60207","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=60207"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60207\/revisions"}],"predecessor-version":[{"id":60208,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60207\/revisions\/60208"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}