如何在Python中隔离字典数据

Question

我创建了不同部门不同付款的数据库：

paymentType={"Cash":0,"Amex":0,"All Other Cards":0}
departments={"Lounge":0,"MBar":0,"Resto":0,"TBar":0,"TFloor":0,"Events":0}
for dep in departments.keys():
    data=paymentType
    departments[dep]=data

但是，当我将值赋给特定部门中的“paymentType”之一时

departments["Lounge"]["Cash"]=8

它改变了所有“部门”的“现金”价值

我想保留通过字符串赋值的能力，这就是为什么我不使用类的原因

Answer 1

经理不仅要查字典，而且每次都要编一本新字典

departments={"Lounge":0,"MBar":0,"Resto":0,"TBar":0,"TFloor":0,"Events":0}
for dep in departments.keys():

    departments[dep]={"Cash":0,"Amex":0,"All Other Cards":0}
` ``

Answer 2

你需要使用

data=paymentType.copy()

否则，将同一字典分配给所有字段