MYSQL VC 连接出错

Question

MYSQL mysql; //数据库连接句柄 
mysql_init (&mysql); 
if(!mysql_real_connect(&mysql,"localhost","root","admin","mydb",3306,NULL,0))
MYSQL *mysql;
mysql= mysql_init((MYSQL*)NULL);
if(mysql_real_connect(mysql,"localhost","root","admin","mydb",3306,NULL,0)) 

Answer 1

if(!mysql_real_connect(&mysql,"localhost","root","admin","mydb",3306,NULL,0)) 感叹号去掉

Answer 2

我按你的意思。。
mysql= mysql_init((MYSQL*)NULL); 

if(mysql_real_connect(mysql,"localhost","root","admin","mydb",3306,NULL,0))
{ 
AfxMessageBox("数据库连接成功"); 
}
else
{
AfxMessageBox("数据库连接失败"); 
return;
}提示为失败....还有上面的&改为*又有什么意义呢，指针和引用在这里是作用相同的啊...