{"id":60131,"date":"2024-10-13T00:18:22","date_gmt":"2024-10-12T16:18:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60131\/"},"modified":"2024-10-13T00:18:23","modified_gmt":"2024-10-12T16:18:23","slug":"c%e8%aa%9e%e8%a8%80%e8%bc%95%e9%ac%86%e5%af%a6%e7%8f%be%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2%e6%8a%80%e5%b7%a7-c%e8%aa%9e%e8%a8%80%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60131\/","title":{"rendered":"C\u8a9e\u8a00\u8f15\u9b06\u5be6\u73fe\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6280\u5de7 (c\u8a9e\u8a00\u67e5\u8a62\u6578\u64da\u5eab)"},"content":{"rendered":"

C\u8a9e\u8a00\u8f15\u9b06\u5be6\u73fe\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6280\u5de7<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u67e5\u8a62\u6210\u70ba\u4e86\u958b\u767c\u8005\u65e5\u5e38\u5de5\u4f5c\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002C\u8a9e\u8a00\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u96d6\u7136\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e0a\u4e0d\u5982\u4e00\u4e9b\u9ad8\u7d1a\u8a9e\u8a00\u90a3\u9ebc\u76f4\u89c0\uff0c\u4f46\u901a\u904e\u9069\u7576\u7684\u6280\u5de7\u548c\u5eab\u7684\u4f7f\u7528\uff0c\u958b\u767c\u8005\u4ecd\u7136\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u5eab\u67e5\u8a62\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u793a\u4f8b\u3002<\/p>\n

1. C\u8a9e\u8a00\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5<\/h2>\n

\u5728\u9032\u884c\u6578\u64da\u5eab\u67e5\u8a62\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u4fddC\u8a9e\u8a00\u80fd\u5920\u8207\u6578\u64da\u5eab\u9032\u884c\u9023\u63a5\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u5982MySQL\u3001SQLite\u7b49\uff0c\u90fd\u63d0\u4f9b\u4e86\u76f8\u61c9\u7684C\u8a9e\u8a00API\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MySQL\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

\n#include \n\nMYSQL *conn;\nconn = mysql_init(NULL);\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
\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\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u8acb\u6839\u64da\u5be6\u969b\u60c5\u6cc1\u66ff\u63db\u9023\u63a5\u53c3\u6578\u3002<\/p>\n
2. \u57f7\u884c\u67e5\u8a62<\/h2>\n
\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528C\u8a9e\u8a00\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u57f7\u884c\u67e5\u8a62\u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n
\nif (mysql_query(conn, \"SELECT * FROM table_name\")) {\n    fprintf(stderr, \"SELECT * failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n\nMYSQL_RES *result = mysql_store_result(conn);\nif (result == NULL) {\n    fprintf(stderr, \"mysql_store_result() failed. Error: %sn\", mysql_error(conn));\n    mysql_close(conn);\n    return EXIT_FAILURE;\n}\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528mysql_query\u51fd\u6578\u57f7\u884c\u4e00\u500bSELECT\u67e5\u8a62\uff0c\u7136\u5f8c\u4f7f\u7528mysql_store_result\u51fd\u6578\u7372\u53d6\u7d50\u679c\u96c6\u3002<\/p>\n
3. \u8655\u7406\u67e5\u8a62\u7d50\u679c<\/h2>\n
\u7372\u53d6\u7d50\u679c\u96c6\u5f8c\uff0c\u6211\u5011\u9700\u8981\u904d\u6b77\u7d50\u679c\u4e26\u63d0\u53d6\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u8655\u7406\u67e5\u8a62\u7d50\u679c\u7684\u793a\u4f8b\uff1a<\/p>\n
\nMYSQL_ROW row;\nwhile ((row = mysql_fetch_row(result))) {\n    printf(\"Column 1: %s, Column 2: %sn\", row[0], row[1]);\n}\nmysql_free_result(result);\nmysql_close(conn);\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u4f7f\u7528mysql_fetch_row\u51fd\u6578\u9010\u884c\u63d0\u53d6\u6578\u64da\uff0c\u4e26\u6253\u5370\u51fa\u6bcf\u4e00\u5217\u7684\u503c\u3002\u6700\u5f8c\uff0c\u8a18\u5f97\u91cb\u653e\u7d50\u679c\u96c6\u4e26\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5\u3002<\/p>\n
4. \u932f\u8aa4\u8655\u7406<\/h2>\n
\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002C\u8a9e\u8a00\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u5f0f\u4f86\u6355\u7372\u548c\u8655\u7406\u932f\u8aa4\uff0c\u4f8b\u5982\u4f7f\u7528mysql_error\u51fd\u6578\u4f86\u7372\u53d6\u932f\u8aa4\u4fe1\u606f\u3002\u9019\u6a23\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u4e26\u9032\u884c\u8abf\u8a66\u3002<\/p>\n
5. \u5c0f\u7d50<\/h2>\n
\u901a\u904e\u4ee5\u4e0a\u7684\u4ecb\u7d39\uff0c\u6211\u5011\u53ef\u4ee5\u770b\u5230\uff0c\u96d6\u7136C\u8a9e\u8a00\u5728\u6578\u64da\u5eab\u67e5\u8a62\u65b9\u9762\u7684\u64cd\u4f5c\u76f8\u5c0d\u8f03\u70ba\u7e41\u7463\uff0c\u4f46\u53ea\u8981\u638c\u63e1\u4e86\u57fa\u672c\u7684API\u548c\u6280\u5de7\uff0c\u958b\u767c\u8005\u4ecd\u7136\u53ef\u4ee5\u9ad8\u6548\u5730\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u7121\u8ad6\u662f\u9023\u63a5\u6578\u64da\u5eab\u3001\u57f7\u884c\u67e5\u8a62\u9084\u662f\u8655\u7406\u7d50\u679c\uff0cC\u8a9e\u8a00\u90fd\u80fd\u5920\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u5eab\u67e5\u8a62\u9ad8\u6548\u4e14\u5b89\u5168\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22C\u8a9e\u8a00\u4e2d\u8f15\u9b06\u5be6\u73fe\u7684\u6578\u64da\u5eab\u67e5\u8a62\u6280\u5de7\uff0c\u63d0\u5347\u4f60\u7684\u7de8\u7a0b\u80fd\u529b\uff0c\u5feb\u901f\u638c\u63e1\u6578\u64da\u64cd\u4f5c\u8207\u7ba1\u7406\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-60131","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60131","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=60131"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60131\/revisions"}],"predecessor-version":[{"id":60132,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60131\/revisions\/60132"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}