# 干货-下单量精度和价格精度-适用各个交易所

Author: 陈皮, Date: 2021-07-02 19:24:39
Tags: Tool

```from collections import Counter
def GetAmountPrecision():
depth = _C(exchange.GetDepth)
amountPrecisions = []
amountPrecision = 0
if str(i).count('.') == 1:
amountPrecision = len(str(i).split(".")[1])
amountPrecisions.append(amountPrecision)
amountPrecision = max(amountPrecisions)
return amountPrecision

def GetPricePrecision():
depth = _C(exchange.GetDepth)
pricePrecisions = []
pricePrecision = 0
if str(j).count('.') == 1:
pricePrecision = len(str(j).split(".")[1])
pricePrecisions.append(pricePrecision)
pricePrecision = Counter(pricePrecisions).most_common(1)[0][0]
return pricePrecision
```

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czruiq 花了个多钟才搞出来，没想到上来一查，早就有现成的了.....

77924998 有JS版本的吗

77924998 怎么用到策略里面呢

lcgs005 不错，从挂单量数据来得出小数位的方法，有没有直接用API取到最低价格，最高价格，步长数据后在实盘中对下单价格进行修正的示例？

gg50933064 这个是交易所打新策略吗

btcrobot function GetPrecision(){ if(IsVirtual()){ return {price:6, amount:6} } var precision = {price:0, amount:0} var depth = exchange.GetDepth() if(!depth){ throw '无法连接交易所行情,需要海外托管者' } for(var i=0;i<depth.Asks.length;i++){ var amountPrecision = depth.Asks[i].Amount.toString().indexOf('.') > -1 ? depth.Asks[i].Amount.toString().split('.')[1].length : 0 precision.amount = Math.max(precision.amount,amountPrecision) var pricePrecision = depth.Asks[i].Price.toString().indexOf('.') > -1 ? depth.Asks[i].Price.toString().split('.')[1].length : 0 precision.price = Math.max(precision.price,pricePrecision) } return precision }

77924998 谢谢

gg50933064 有交易所打新策略吗