request.price =SymbolInfoDouble(Symbol(),SYMBOL_ASK); request.deviation =10; request.comment ="EA";if(!OrderSend(request,result)) {Alert("开仓失败:",GetLastError());} } 按照MQL5帮助文档的示例初始化 MqlTradeRequest request={0}; 编译却说 cannot convert 0 to enum'ENUM_TRADE_REQUEST_ACTIONS'...