无法进行OrderSend？ 代码如下。请高手帮忙。

[clington]

int start()

{

//----

if(IsDemo())

Print("In Demo.");//YES

if(IsTradeAllowed())

Print("Trade allowed."); //YES

int ticket;

ticket=OrderSend(Symbol(),OP_BUY,0.1,Ask,3,Ask-25*Point,Ask+25*Point,"My order #2",16384,0,Green);

if(ticket<0)

{

Print("OrderSend failed with error #",GetLastError()); //error #133

return(0);

}

//----

return(0);

}