c连接mysql的连接串

const char *conn_str = "mysql://username:password@hostname:port/database";

#include <mysql.h>
#include <stdio.h>

int main() {
    MYSQL *conn;
    MYSQL_RES *res;
    MYSQL_ROW row;

    char *server = "localhost";
    char *user = "your_username";
    char *password = "your_password";
    char *database = "your_database";

    conn = mysql_init(NULL);

    /* Connect to database */
    if (!mysql_real_connect(conn, server, user, password, database, 0, NULL, 0)) {
        fprintf(stderr, "%s\n", mysql_error(conn));
        return 1;
    }

    /* Send SQL query */
    if (mysql_query(conn, "show tables")) {
        fprintf(stderr, "%s\n", mysql_error(conn));
        return 1;
    }

    res = mysql_use_result(conn);

    /* Output table name */
    while ((row = mysql_fetch_row(res)) != NULL)
        printf("%s\n", row[0]);

    /* Close connection */
    mysql_free_result(res);
    mysql_close(conn);

    return 0;
}