Question

要生成dll，但当中要调用lib,要怎么做。

#include <windows.h>
#include "mysql.h"
#include <conio.h>
#include "stdafx.h"
#pragma comment(lib,"libmysql.lib")

BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
return TRUE;
}

extern "C" _declspec(dllexport)char* mysql(void)
{
MYSQL *conn;
MYSQL_RES *res;
MYSQL_ROW row;
char *server = "localhost";
char *user = "root";
char *password = "root";
char *database = "labview";
conn = mysql_init(NULL);
mysql_real_connect(conn, server, user, password, database, 3306, NULL, 0);
char sql[1024]="SELECT * FROM labview WHERE ID=8383";
mysql_query(conn, sql);
res = mysql_use_result(conn);
row = mysql_fetch_row(res);
mysql_free_result(res);
mysql_close(conn);
return row;
}

Answer 1

是c#和vb.net吗？
csc 然后调用/r参数就可以了,以c#为例：
csc.exe /target:library /out:要生成的dll.dll 我用到的cs1.cs 我用到的cs2.cs /r:我调用的lib.lib

追问

是用C语言的，它一直报错

追答

那不好意思，那就不大清楚了