{"id":175191,"date":"2024-11-08T03:48:18","date_gmt":"2024-11-07T19:48:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175191\/"},"modified":"2024-11-08T03:48:19","modified_gmt":"2024-11-07T19:48:19","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8c%e8%aa%9e%e8%a8%80%e5%ae%9a%e6%99%82%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab-%e4%b8%80%e6%ad%a5%e6%ad%a5%e6%95%99%e7%a8%8b-c-%e5%ae%9a%e6%99%82%e4%bf%ae","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175191\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab \u4e00\u6b65\u6b65\u6559\u7a0b (c \u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8c%e8%aa%9e%e8%a8%80%e5%ae%9a%e6%99%82%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab-%e4%b8%80%e6%ad%a5%e6%ad%a5%e6%95%99%e7%a8%8b-MylFKcFcFB\">\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab \u4e00\u6b65\u6b65\u6559\u7a0b<\/h1>\n<p>\u5728\u73fe\u4ee3\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u7dad\u8b77\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u66f4\u65b0\u6578\u64da\u9084\u662f\u9032\u884c\u5b9a\u671f\u7684\u6578\u64da\u6e05\u7406\uff0c\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab\u7684\u9700\u6c42\u65e5\u76ca\u589e\u52a0\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u4f86\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u500b\u8a73\u7d30\u7684\u6b65\u9a5f\u6559\u7a0b\u3002<\/p>\n<h2 id=\"%e7%92%b0%e5%a2%83%e6%ba%96%e5%82%99-MylFKcFcFB\">\u74b0\u5883\u6e96\u5099<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u7684\u958b\u767c\u74b0\u5883\u5df2\u7d93\u8a2d\u7f6e\u597d\u3002\u4ee5\u4e0b\u662f\u60a8\u9700\u8981\u7684\u57fa\u672c\u5de5\u5177\uff1a<\/p>\n<ul>\n<li>\u5b89\u88ddC\u7de8\u8b6f\u5668\uff08\u5982GCC\uff09<\/li>\n<li>\u5b89\u88ddMySQL\u6216\u5176\u4ed6\u6578\u64da\u5eab\u7cfb\u7d71<\/li>\n<li>\u5b89\u88ddMySQL C API\u5eab<\/li>\n<\/ul>\n<p>\u78ba\u4fdd\u60a8\u5df2\u7d93\u80fd\u5920\u5728C\u8a9e\u8a00\u4e2d\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u4e26\u57f7\u884c\u57fa\u672c\u7684\u67e5\u8a62\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e9%80%a3%e6%8e%a5%e6%95%b8%e6%93%9a%e5%ba%ab-MylFKcFcFB\">\u6b65\u9a5f\u4e00\uff1a\u9023\u63a5\u6578\u64da\u5eab<\/h2>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728C\u7a0b\u5e8f\u4e2d\u9023\u63a5\u5230\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n#include &lt;stdio.h&gt;\n#include &lt;mysql\/mysql.h&gt;\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(\"\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff01n\");\n    mysql_close(conn);\n    return EXIT_SUCCESS;\n}\n<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e5%ae%9a%e6%99%82%e4%bb%bb%e5%8b%99%e7%9a%84%e5%af%a6%e7%8f%be-MylFKcFcFB\">\u6b65\u9a5f\u4e8c\uff1a\u5b9a\u6642\u4efb\u52d9\u7684\u5be6\u73fe<\/h2>\n<p>\u5728C\u8a9e\u8a00\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u6a19\u6e96\u5eab\u4e2d\u7684\u6642\u9593\u51fd\u6578\u4f86\u5be6\u73fe\u5b9a\u6642\u4efb\u52d9\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u8a72\u793a\u4f8b\u6bcf\u9694\u4e00\u6bb5\u6642\u9593\u5c31\u6703\u57f7\u884c\u4e00\u6b21\u6578\u64da\u5eab\u66f4\u65b0\u64cd\u4f5c\uff1a<\/p>\n<pre><code>\n#include &lt;stdio.h&gt;\n#include &lt;stdlib.h&gt;\n#include &lt;mysql\/mysql.h&gt;\n#include &lt;time.h&gt;\n\nvoid update_database(MYSQL *conn) {\n    if (mysql_query(conn, \"UPDATE your_table SET your_column = 'new_value' WHERE condition\")) {\n        fprintf(stderr, \"UPDATE failed. Error: %sn\", mysql_error(conn));\n    } else {\n        printf(\"\u6578\u64da\u5eab\u66f4\u65b0\u6210\u529f\uff01n\");\n    }\n}\n\nint main() {\n    MYSQL *conn;\n    conn = mysql_init(NULL);\n    mysql_real_connect(conn, \"localhost\", \"user\", \"password\", \"database\", 0, NULL, 0);\n\n    while (1) {\n        update_database(conn);\n        sleep(60); \/\/ \u6bcf60\u79d2\u57f7\u884c\u4e00\u6b21\n    }\n\n    mysql_close(conn);\n    return EXIT_SUCCESS;\n}\n<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e8%99%95%e7%90%86%e9%8c%af%e8%aa%a4%e5%92%8c%e6%b8%85%e7%90%86%e8%b3%87%e6%ba%90-MylFKcFcFB\">\u6b65\u9a5f\u4e09\uff1a\u8655\u7406\u932f\u8aa4\u548c\u6e05\u7406\u8cc7\u6e90<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u60a8\u9700\u8981\u8003\u616e\u5230\u932f\u8aa4\u8655\u7406\u548c\u8cc7\u6e90\u7684\u91cb\u653e\u3002\u78ba\u4fdd\u5728\u6bcf\u6b21\u64cd\u4f5c\u5f8c\u6aa2\u67e5\u8fd4\u56de\u503c\uff0c\u4e26\u5728\u7a0b\u5e8f\u7d50\u675f\u6642\u91cb\u653e\u6240\u6709\u8cc7\u6e90\u3002<\/p>\n<pre><code>\nif (mysql_query(conn, \"YOUR QUERY\")) {\n    fprintf(stderr, \"Query failed. Error: %sn\", mysql_error(conn));\n} else {\n    \/\/ \u8655\u7406\u67e5\u8a62\u7d50\u679c\n}\n\n\/\/ \u5728\u7a0b\u5e8f\u7d50\u675f\u6642\u91cb\u653e\u8cc7\u6e90\nmysql_close(conn);\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-MylFKcFcFB\">\u7e3d\u7d50<\/h2>\n<p>\u901a\u904e\u4ee5\u4e0a\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528C\u8a9e\u8a00\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab\u3002\u9019\u7a2e\u65b9\u6cd5\u4e0d\u50c5\u9748\u6d3b\uff0c\u800c\u4e14\u80fd\u5920\u6eff\u8db3\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f\u5b9a\u671f\u66f4\u65b0\u6578\u64da\u9084\u662f\u9032\u884c\u6578\u64da\u6e05\u7406\uff0c\u9019\u7a2e\u6280\u8853\u90fd\u80fd\u5e6b\u52a9\u60a8\u6709\u6548\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u5eab\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u900f\u904e\u7a69\u5b9a\u7684<a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u60a8\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u9ad8\u6548\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528C\u8a9e\u8a00\u5b9a\u6642\u4fee\u6539\u6578\u64da\u5eab\u7684\u8a73\u7d30\u6b65\u9a5f\uff0c\u5f9e\u8a2d\u7f6e\u8a08\u6642\u5668\u5230\u57f7\u884cSQL\u547d\u4ee4\uff0c\u8f15\u9b06\u638c\u63e1\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-175191","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175191","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=175191"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175191\/revisions"}],"predecessor-version":[{"id":175192,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175191\/revisions\/175192"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175191"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175191"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175191"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}