{"id":60227,"date":"2024-10-13T01:06:15","date_gmt":"2024-10-12T17:06:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60227\/"},"modified":"2024-10-13T01:06:15","modified_gmt":"2024-10-12T17:06:15","slug":"c%e8%aa%9e%e8%a8%80%e4%b8%ad%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e6%95%b8%e5%80%bc%e5%82%b3%e9%81%9e%e6%96%b9%e6%b3%95-c%e6%95%b8%e6%93%9a%e5%ba%ab%e5%82%b3%e5%80%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60227\/","title":{"rendered":"C\u8a9e\u8a00\u4e2d\u6578\u64da\u5eab\u4e2d\u7684\u6578\u503c\u50b3\u905e\u65b9\u6cd5 (C\u6578\u64da\u5eab\u50b3\u503c)"},"content":{"rendered":"

C\u8a9e\u8a00\u4e2d\u6578\u64da\u5eab\u4e2d\u7684\u6578\u503c\u50b3\u905e\u65b9\u6cd5 (C\u6578\u64da\u5eab\u50b3\u503c)<\/h1>\n

\u5728\u73fe\u4ee3\u8edf\u9ad4\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\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\u5176\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u61c9\u7528\u4ecd\u7136\u975e\u5e38\u5ee3\u6cdb\u3002\u672c\u6587\u5c07\u63a2\u8a0eC\u8a9e\u8a00\u4e2d\u6578\u64da\u5eab\u7684\u6578\u503c\u50b3\u905e\u65b9\u6cd5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728C\u8a9e\u8a00\u4e2d\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n

\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n

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\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
\u6578\u64da\u7684\u63d2\u5165<\/h2>\n
\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528SQL\u8a9e\u53e5\u4f86\u63d2\u5165\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\nconst char *query = \"INSERT INTO table_name (column1, column2) VALUES (value1, value2)\";\nif (mysql_query(conn, query)) {\n    fprintf(stderr, \"INSERT failed. Error: %sn\", mysql_error(conn));\n}\n<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c\u958b\u767c\u8005\u9700\u8981\u6ce8\u610f\u6578\u64da\u985e\u578b\u7684\u5339\u914d\uff0c\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u503c\u8207\u6578\u64da\u5eab\u4e2d\u5b9a\u7fa9\u7684\u985e\u578b\u4e00\u81f4\u3002<\/p>\n
\u6578\u64da\u7684\u67e5\u8a62<\/h2>\n
\u67e5\u8a62\u6578\u64da\u662f\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u6700\u5e38\u898b\u7684\u9700\u6c42\u4e4b\u4e00\u3002\u4f7f\u7528C\u8a9e\u8a00\u9032\u884c\u67e5\u8a62\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n
\nif (mysql_query(conn, \"SELECT * FROM table_name\")) {\n    fprintf(stderr, \"SELECT failed. Error: %sn\", mysql_error(conn));\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}\n\nint num_fields = mysql_num_fields(result);\nwhile ((row = mysql_fetch_row(result))) {\n    for (int i = 0; i < num_fields; i++) {\n        printf("%s ", row[i] ? row[i] : "NULL");\n    }\n    printf("n");\n}\nmysql_free_result(result);\n<\/code><\/pre>\n
\u6578\u64da\u7684\u66f4\u65b0\u8207\u522a\u9664<\/h2>\n
\u9664\u4e86\u63d2\u5165\u548c\u67e5\u8a62\uff0c\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u4e5f\u662f\u5e38\u898b\u7684\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\nconst char *update_query = \"UPDATE table_name SET column1 = value1 WHERE condition\";\nif (mysql_query(conn, update_query)) {\n    fprintf(stderr, \"UPDATE failed. Error: %sn\", mysql_error(conn));\n}\n<\/code><\/pre>\n
\u522a\u9664\u6578\u64da\u7684\u64cd\u4f5c\u985e\u4f3c\uff1a<\/p>\n
\nconst char *delete_query = \"DELETE FROM table_name WHERE condition\";\nif (mysql_query(conn, delete_query)) {\n    fprintf(stderr, \"DELETE failed. Error: %sn\", mysql_error(conn));\n}\n<\/code><\/pre>\n
\u6578\u64da\u7684\u50b3\u905e\u65b9\u6cd5<\/h2>\n
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\u4f8b\u5982\uff0c\u7576\u9700\u8981\u5f9e\u6578\u64da\u5eab\u4e2d\u8b80\u53d6\u5927\u91cf\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u6307\u91dd\u4f86\u50b3\u905e\u6578\u64da\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5167\u5b58\u62f7\u8c9d\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728C\u8a9e\u8a00\u4e2d\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u7406\u89e3\u6578\u64da\u7684\u50b3\u905e\u65b9\u6cd5\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6b63\u78ba\u7684\u9023\u63a5\u3001\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u4f7f\u7528MySQL\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\uff0c\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u958b\u767c\u6548\u7387\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 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\u7528\u6236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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