类的Python代码不返回值

Question

你好我有一个Python代码，不断给我一个错误，有人可能会继续之前看它。这是我的python类来计算手机话费的金额。我现在有这个但它不返回价值

经济计划包括$ 30无限的语音和文字，1 GB数据为10美元，每GB超过6美元。

正常计划包括$ 30无限的语音和文字，5 GB数据为30美元，每GB超过4美元。

class cellphone: 
    cost = 30 
    due = 0 
    amountGB = 0 
    Total = 0 

    def econPlan (self, gB, gbOver): 
     self.cost = 30 
     self.gB = 1 
     self.gbOver = 6 
     self.due = 0 

     while amountGB >= self.gB: 
      int(amountGB - self.gB)* self.gbOver 
     return self.due 

     while cPlan == Econ and amountGB >= self.gB: 
      print ("$",self.due) 

    def normPlan (self, gB, gbOver): 
     self.cost = 30 
     self.gB = 5 
     self.gbOver = 4 

     while amountGB >= self.gB: 
      int(amountGB - self.gB)* self.gbOver 
     return self.due 

     while cPlan == Norm and amountGB >= self.gB: 
      print ("$",self.due) 






print (" Which Plan do you have: econ or norm?") 
print (" Econ is $30 unlimited voice and text, 1 GB data for $10, and $6 for every GB over.") 
print (" Norm is $30 unlimited voice and text, 5 GB data for $30, and $4 for every GB over.") 

econ = cellphone.econPlan 
norm = cellphone.normPlan 
cellphone.cPlan = input ("So which plan do you have? >>") 
if cellphone.cPlan == econ: 
    print ("you have the Economy plan") 

elif cellphone.cPlan == norm: 
    print ("you have the Normal plan") 

cellphone.amountGB = input ("how many GB did you used >>") 
if cellphone.cPlan == "Econ": 
    print (cellphone.due) 

Answer 1

自我只有方法中存在。如果您想要获取方法内的变量的当前值，请调用该方法并返回该变量。