{"id":194515,"date":"2024-11-13T07:18:21","date_gmt":"2024-11-12T23:18:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194515\/"},"modified":"2024-11-13T07:18:23","modified_gmt":"2024-11-12T23:18:23","slug":"%e7%94%a8c%e8%aa%9e%e8%a8%80%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e5%92%8c%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-c-%e9%80%a3%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194515\/","title":{"rendered":"\u7528C\u8a9e\u8a00\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u548c\u67e5\u8a62\u8a9e\u53e5 (c \u9023\u6578\u64da\u5eab\u548c\u67e5\u8a62\u8a9e\u53e5)"},"content":{"rendered":"<h1 id=\"%e7%94%a8c%e8%aa%9e%e8%a8%80%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e5%92%8c%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-vWKrzbKNph\">\u7528C\u8a9e\u8a00\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u548c\u67e5\u8a62\u8a9e\u53e5<\/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\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u61c9\u7528\u9084\u662f\u5927\u578b\u7cfb\u7d71\uff0c\u6578\u64da\u5eab\u90fd\u662f\u5b58\u5132\u548c\u7ba1\u7406\u6578\u64da\u7684\u91cd\u8981\u5de5\u5177\u3002C\u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u96d6\u7136\u4e0d\u5982\u4e00\u4e9b\u9ad8\u7d1a\u8a9e\u8a00\u90a3\u6a23\u76f4\u89c0\uff0c\u4f46\u5b83\u4ecd\u7136\u53ef\u4ee5\u7528\u4f86\u5be6\u73fe\u6578\u64da\u5eab\u7684\u9023\u63a5\u548c\u67e5\u8a62\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u9023\u63a5\u5230\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u8a9e\u53e5\u3002<\/p>\n<h2 id=\"1-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%81%b8%e6%93%87-vWKrzbKNph\">1. \u6578\u64da\u5eab\u9078\u64c7<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u9078\u64c7\u4e00\u500b\u5408\u9069\u7684\u6578\u64da\u5eab\u3002\u5e38\u898b\u7684\u9078\u64c7\u5305\u62ecMySQL\u3001PostgreSQL\u548cSQLite\u7b49\u3002\u9019\u4e9b\u6578\u64da\u5eab\u90fd\u6709\u5404\u81ea\u7684\u512a\u7f3a\u9ede\uff0c\u6839\u64da\u61c9\u7528\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"2-%e5%ae%89%e8%a3%9d%e6%95%b8%e6%93%9a%e5%ba%ab%e9%a9%85%e5%8b%95-vWKrzbKNph\">2. \u5b89\u88dd\u6578\u64da\u5eab\u9a45\u52d5<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\uff0c\u9023\u63a5\u6578\u64da\u5eab\u901a\u5e38\u9700\u8981\u4f7f\u7528\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\u3002\u4ee5MySQL\u70ba\u4f8b\uff0c\u6211\u5011\u9700\u8981\u5b89\u88ddMySQL\u7684C API\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-vWKrzbKNph\">3. \u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u9023\u63a5\u6578\u64da\u5eab\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u5305\u542b\u5fc5\u8981\u7684\u982d\u6587\u4ef6<\/li>\n<li>\u521d\u59cb\u5316\u6578\u64da\u5eab\u9023\u63a5<\/li>\n<li>\u8a2d\u7f6e\u9023\u63a5\u53c3\u6578<\/li>\n<li>\u5efa\u7acb\u9023\u63a5<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>#include \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}<\/code><\/pre>\n<h2 id=\"4-%e5%9f%b7%e8%a1%8c%e6%9f%a5%e8%a9%a2%e8%aa%9e%e5%8f%a5-vWKrzbKNph\">4. \u57f7\u884c\u67e5\u8a62\u8a9e\u53e5<\/h2>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u5c31\u53ef\u4ee5\u57f7\u884c\u67e5\u8a62\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u57f7\u884c\u67e5\u8a62\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u6e96\u5099\u67e5\u8a62\u8a9e\u53e5<\/li>\n<li>\u57f7\u884c\u67e5\u8a62<\/li>\n<li>\u8655\u7406\u7d50\u679c\u96c6<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u57f7\u884c\u67e5\u8a62\u4e26\u8655\u7406\u7d50\u679c\uff1a<\/p>\n<pre><code>#include \n#include \n#include \n\nint main() {\n    MYSQL *conn;\n    MYSQL_RES *res;\n    MYSQL_ROW row;\n\n    conn = mysql_init(NULL);\n    mysql_real_connect(conn, \"localhost\", \"user\", \"password\", \"database\", 0, NULL, 0);\n\n    if (mysql_query(conn, \"SELECT * FROM table_name\")) {\n        fprintf(stderr, \"SELECT * failed. Error: %sn\", mysql_error(conn));\n        return EXIT_FAILURE;\n    }\n\n    res = mysql_store_result(conn);\n    int num_fields = mysql_num_fields(res);\n\n    while ((row = mysql_fetch_row(res))) {\n        for (int i = 0; i &lt; num_fields; i++) {\n            printf(&quot;%s &quot;, row[i] ? row[i] : &quot;NULL&quot;);\n        }\n        printf(&quot;n&quot;);\n    }\n\n    mysql_free_result(res);\n    mysql_close(conn);\n    return EXIT_SUCCESS;\n}<\/code><\/pre>\n<h2 id=\"5-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-vWKrzbKNph\">5. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u5be6\u969b\u958b\u767c\u4e2d\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u6bcf\u7576\u57f7\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u90fd\u61c9\u8a72\u6aa2\u67e5\u8fd4\u56de\u503c\u4e26\u8655\u7406\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u5728\u9023\u63a5\u6578\u64da\u5eab\u6216\u57f7\u884c\u67e5\u8a62\u6642\uff0c\u5982\u679c\u51fa\u73fe\u932f\u8aa4\uff0c\u61c9\u8a72\u4f7f\u7528 <code>mysql_error()<\/code> \u51fd\u6578\u4f86\u7372\u53d6\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-vWKrzbKNph\">\u7e3d\u7d50<\/h2>\n<p>\u4f7f\u7528C\u8a9e\u8a00\u9023\u63a5\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u8a9e\u53e5\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\u3002\u901a\u904e\u5b89\u88dd\u76f8\u61c9\u7684\u6578\u64da\u5eab\u9a45\u52d5\u3001\u5efa\u7acb\u9023\u63a5\u3001\u57f7\u884c\u67e5\u8a62\u4ee5\u53ca\u8655\u7406\u7d50\u679c\u96c6\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5728C\u8a9e\u8a00\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6027\u80fd\u7684\u61c9\u7528\uff0cC\u8a9e\u8a00\u7121\u7591\u662f\u4e00\u500b\u4e0d\u932f\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528C\u8a9e\u8a00\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u548c\u67e5\u8a62\u8a9e\u53e5\uff0c\u638c\u63e1\u57fa\u672c\u64cd\u4f5c\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u7c21\u5316\u958b\u767c\u6d41\u7a0b\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-194515","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194515","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=194515"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194515\/revisions"}],"predecessor-version":[{"id":194516,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194515\/revisions\/194516"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}