我得到IndexError：列表索引超出范围

Question

错误

File "D:/hotel2.py", line 11, in addGuest guests[i].append(name) IndexError: list index out of range

hotel2.py

def addGuest(): 
    i = 0 
    j = 0 
    global guestid 
    name = input("Please enter guest name:\n") 
    guests[i].append(name) 
    guests[j].append(guestid) 
    print("Guest %s has been created with guest ID: %d" % (guests[i], guests[j])) 
    i += 1 
    j += 1 
    guestid += 1 

我真正想要做的是存储guestid和guestname的方式，当我输入guestid时，我可以显示guestname。但是这个功能不会让我这样做。

Answer 1

您更好地使用字典key:value比对两份名单：

guestid2name = {} 

def addGuest(): 
    name = raw_input('enter guest name:\n') 
    global guestid 
    guestid2name[guestid] = name 
    print("Guest %s has been created with guest ID: %d" % (name, guestid)) 

这将创建guestid年代guestid2name数据结构与客人的名字作为值。它比使用两个不同的列表来实现相同的事情更有效率。