{"id":180948,"date":"2024-11-09T14:31:16","date_gmt":"2024-11-09T06:31:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180948\/"},"modified":"2024-11-09T14:31:17","modified_gmt":"2024-11-09T06:31:17","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3c%e8%aa%9e%e8%a8%80%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e8%88%87%e6%95%b8%e6%93%9a%e5%88%aa%e9%99%a4-c-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180948\/","title":{"rendered":"\u6df1\u5165\u7406\u89e3C\u8a9e\u8a00\u6578\u64da\u5eab\u9023\u63a5\u8207\u6578\u64da\u522a\u9664 (c \u6578\u64da\u5eab\u6578\u64da\u522a\u9664\u6578\u64da\u5eab\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3c%e8%aa%9e%e8%a8%80%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e8%88%87%e6%95%b8%e6%93%9a%e5%88%aa%e9%99%a4-pfDZiHjsVY\">\u6df1\u5165\u7406\u89e3C\u8a9e\u8a00\u6578\u64da\u5eab\u9023\u63a5\u8207\u6578\u64da\u522a\u9664<\/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\u4e00\u4e9b\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\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\u4ee5\u53ca\u5982\u4f55\u57f7\u884c\u6578\u64da\u522a\u9664\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-pfDZiHjsVY\">\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\uff0c\u9023\u63a5\u6578\u64da\u5eab\u901a\u5e38\u9700\u8981\u4f7f\u7528\u7279\u5b9a\u7684\u6578\u64da\u5eabAPI\u3002\u4ee5MySQL\u70ba\u4f8b\uff0c\u958b\u767c\u8005\u9700\u8981\u4f7f\u7528MySQL C API\u4f86\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u9996\u5148\uff0c\u60a8\u9700\u8981\u5b89\u88ddMySQL\u958b\u767c\u5eab\uff0c\u7136\u5f8c\u5728\u60a8\u7684C\u7a0b\u5e8f\u4e2d\u5305\u542b\u76f8\u61c9\u7684\u982d\u6587\u4ef6\u3002<\/p>\n<pre><code>#include &lt;mysql\/mysql.h&gt;\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u4f86\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\uff1a<\/p>\n<pre><code>MYSQL *conn;\nconn = mysql_init(NULL);\n\nif (conn == NULL) {\n    fprintf(stderr, \"mysql_init() failedn\");\n    return EXIT_FAILURE;\n}\n\nif (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<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u521d\u59cb\u5316\u4e00\u500bMYSQL\u7d50\u69cb\uff0c\u7136\u5f8c\u4f7f\u7528mysql_real_connect\u51fd\u6578\u4f86\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u8acb\u6839\u64da\u60a8\u7684\u6578\u64da\u5eab\u8a2d\u7f6e\u66ff\u63db\u76f8\u61c9\u7684\u53c3\u6578\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%88%aa%e9%99%a4%e6%93%8d%e4%bd%9c-pfDZiHjsVY\">\u6578\u64da\u522a\u9664\u64cd\u4f5c<\/h2>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u60a8\u5c31\u53ef\u4ee5\u57f7\u884c\u5404\u7a2eSQL\u64cd\u4f5c\uff0c\u5305\u62ec\u6578\u64da\u522a\u9664\u3002\u522a\u9664\u6578\u64da\u7684SQL\u8a9e\u53e5\u901a\u5e38\u662fDELETE\u8a9e\u53e5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u57f7\u884c\u6578\u64da\u522a\u9664\u64cd\u4f5c\uff1a<\/p>\n<pre><code>const char *query = \"DELETE FROM table_name WHERE condition\";\nif (mysql_query(conn, query)) {\n    fprintf(stderr, \"DELETE failed. Error: %sn\", mysql_error(conn));\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500bDELETE\u8a9e\u53e5\uff0c\u7136\u5f8c\u4f7f\u7528mysql_query\u51fd\u6578\u4f86\u57f7\u884c\u8a72\u8a9e\u53e5\u3002\u5982\u679c\u57f7\u884c\u5931\u6557\uff0c\u5247\u6703\u8f38\u51fa\u932f\u8aa4\u4fe1\u606f\u3002<\/p>\n<h3 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-pfDZiHjsVY\">\u6ce8\u610f\u4e8b\u9805<\/h3>\n<ul>\n<li>\u5728\u57f7\u884c\u522a\u9664\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u9032\u884c\u6578\u64da\u5099\u4efd\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u522a\u9664\u91cd\u8981\u6578\u64da\u3002<\/li>\n<li>\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u9650\u5236\u522a\u9664\u7684\u7bc4\u570d\uff0c\u907f\u514d\u522a\u9664\u6574\u500b\u8868\u4e2d\u7684\u6578\u64da\u3002<\/li>\n<li>\u5728\u751f\u7522\u74b0\u5883\u4e2d\uff0c\u61c9\u8a72\u4f7f\u7528\u4e8b\u52d9\u4f86\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-pfDZiHjsVY\">\u7d50\u8ad6<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\uff0c\u901a\u904e\u4f7f\u7528\u76f8\u61c9\u7684\u6578\u64da\u5eabAPI\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\u4e26\u57f7\u884c\u6578\u64da\u522a\u9664\u64cd\u4f5c\u3002\u96d6\u7136C\u8a9e\u8a00\u7684\u8a9e\u6cd5\u76f8\u5c0d\u8f03\u4f4e\u7d1a\uff0c\u4f46\u5176\u9748\u6d3b\u6027\u548c\u6027\u80fd\u4f7f\u5176\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u4ecd\u7136\u5177\u6709\u91cd\u8981\u7684\u5730\u4f4d\u3002\u4e86\u89e3\u5982\u4f55\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u9023\u63a5\u548c\u6578\u64da\u522a\u9664\u64cd\u4f5c\uff0c\u5c0d\u65bc\u958b\u767c\u9ad8\u6548\u7684\u61c9\u7528\u7a0b\u5e8f\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u670d\u52d9\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u7406\u89e3C\u8a9e\u8a00\u4e2d\u7684\u6578\u64da\u5eab\u9023\u63a5\u8207\u6578\u64da\u522a\u9664\u6280\u8853\uff0c\u638c\u63e1\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u7684\u95dc\u9375\u65b9\u6cd5\u8207\u5be6\u8e10\u6280\u5de7\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-180948","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180948","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=180948"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180948\/revisions"}],"predecessor-version":[{"id":180949,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180948\/revisions\/180949"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}