錯誤在Python

Question

我試圖實例化一個類實例化類：

class Customer(object): 
    def __init__(self, name, money, ownership): 
     self.name = name 
     self.money = money 
     self.ownership = ownership 

    def can_afford(self): 
     x = False 
     for bike in bikes.values(): 

      if self.money >= bike.money * margin: 
       print "Customer {} can afford {}".format(self.name, bike) 
       x = True 
     if not x: 
      print "Customer {} cannot afford any bikes at this time.".format(self.name) 

shoppers = {   
    # Initial condition of shopper1 
    "Jane": Customer("Jane", 200, False), 
    # Initial condition of shopper2 
    "Alfred": Customer("Alfred", 500, False), 
    # Initial condition of shopper3 
    "Taylor": Customer("Taylor", 1000, False) 
} 

buyer = Customer(name, money, ownership) 

但buyer = Customer(name, money, ownership)不斷得到出錯：

Undefined variable 'name' 
Undefined variable 'money' 
Undefined variable 'ownership' 

但我認爲我設置變量的值，在我的字典， 「客戶（......）」

Answer 1

class Customer(object): 
    def __init__(self, name, money, ownership): 
     self.name = name 
     self.money = money 
     self.ownership = ownership 

    def can_afford(self): 
     x = False 
     for bike in bikes.values(): 

      if self.money >= bike.money * margin: 
       print "Customer {} can afford {}".format(self.name, bike) 
       x = True 
     if not x: 
      print "Customer {} cannot afford any bikes at this time.".format(self.name) 

shoppers = {   
    # Initial condition of shopper1 
    "Jane": Customer("Jane", 200, False), 
    # Initial condition of shopper2 
    "Alfred": Customer("Alfred", 500, False), 
    # Initial condition of shopper3 
    "Taylor": Customer("Taylor", 1000, False) 
} 
#this is solution for your MENTIONED problem only 
name = 'Buddy' 
money = 2 
ownership = 'something' 
buyer = Customer(name, money, ownership) 

解決方案爲您提到的問題是上面的，你只需要定義小號ome值。 但還有其他一些問題，比如bikes.values（），從哪裏來的？

請記住，要使用某些東西，你必須先告訴它是什麼，所以定義一些東西。

希望它有幫助。