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exchange.GetPosition() 사용에 대한 참고사항: 먼저 빈 배열인지 확인하세요
Created 2018-11-07 08:17:28 Updated 2019-04-17 15:52:12
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2419
exchange.SetTimeout(3000);
exchange.SetContractType("XBTUSD");
//取得第一次币量
position = _C(exchange.GetPosition);
last_Amount = position[0].Amount; //持币数量
hold_price = Math.round(position[0].Price); //持币均价
TypeError: cannot read property 'Amount' of undefined at main (__FILE__:38)
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All comments (2)
var position = _C(exchange.GetPosition);
Log("持仓数组实际内容", position);
var len = position.length; //取数组长度var
Log("持仓数组长度", len);
结果 len ：空仓是0，有仓是1
取数组长度，怎么是1，不是其它数字
谢谢小小梦
8 years ago
GetPosition 返回的是持仓数组， 如果没有持仓返回的是 [] ， 一个空数组， 如果没有持仓， 后面代码 调用position[0].Amount 肯定就报错了，因为position[0] 是不存在的。
这个是您策略程序没有处理好。
8 years ago
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