如何在外部函數中調用方法

Question

我需要一個reservation函數來調用該類的相應方法。

但是，如果我必須在類之外提供用戶輸入，我怎樣才能將該參數傳遞給該方法？

class Stay: 
    def __init__(self): 
     self._type_room= '' 

    def set_type_room (self, NewRoom): 

     NewRoom= select_room() 
     self._type_room= NewRoom 


def select_room(): 
    Newroom= input ('insert') 
    if NewRoom == 'Single': 
     print ('ok') 
    else: 
     print ('only Single') 
    return NewRoom 

def reservation(): 
    stay= Stay() 
    stay.set_type_room(NewRoom) 

Answer 1

NewRoom沒有定義（不存在）的功能reservation內或在全球範圍內，所以你不能訪問它。

當您通過select_room函數重新創建它時，您不必要地將參數傳遞給set_type_room。如果你想在set_type_room是setter方法

class Stay: 
    def __init__(self): 
     self._type_room= '' 

    def set_type_room (self): 
     self._type_room = select_room() 


def select_room(): 
    Newroom= input ('insert') 
    if NewRoom == 'Single': 
     print ('ok') 
    else: 
     print ('only Single') 
    return NewRoom 

def reservation(): 
    stay= Stay() 
    stay.set_type_room() 

：

所以，你可以刪除的參數，你應該罰款

class Stay: 
    def __init__(self): 
     self._type_room= '' 

    def set_type_room (self, NewRoom): 
     self._type_room = NewRoom 

def select_room(stay): 
    NewRoom = input ('insert') 
    if NewRoom == 'Single': 
     print ('ok') 
    else: 
     print ('only Single') 
    stay.set_type_room(NewRoom) 

def reservation(): 
    stay = Stay() 
    select_room(stay)