C/C++ 访问MySql数据库的示例代码

#include "mysql.h"

int _tmain(int argc, _TCHAR* argv[])
{
	MYSQL * mysql;
	mysql = mysql_init(NULL);
	if (mysql != NULL)
	{
		MYSQL* sql = mysql_real_connect(mysql, "localhost", "root", "moli19881021", "test", 3306, NULL, 0);
		if (sql != NULL)
		{
			int val = mysql_select_db(mysql, "test");
			if (val != 0)
			{
				printf("mysql_select_db failed.
");
				mysql_close(mysql);
				getchar();
				return 0;
			}
			printf("select db success.
");
			mysql->reconnect = 1;
			// 操作数据库
			char tmp[512] = {0};
			sprintf(tmp, "select * from test.info_test");
			int rt = mysql_real_query(mysql, tmp, strlen(tmp));
			if (rt != 0)
			{
				printf("query failed : %s
", mysql_error(mysql));
				mysql_close(mysql);
				getchar();
				return 0;
			}
			// 显示结果
			MYSQL_RES* res;
			res = mysql_store_result(mysql);
			MYSQL_ROW row ;
			while (row = mysql_fetch_row(res))
			{
				for (int i = 0; i < mysql_num_fields(res); i ++)
				{
					printf("%s ", row[i]);
				}
				printf("
");
			}
			mysql_free_result(res);
			mysql_close(mysql);
		}
	}
	getchar();
	return 0;
}