总是去：全球名称未定义

Question

这是我的代码。当它运行时它总是显示：

nameerror: global name "weapon_choice" is not defined.

但是我已经放入了武器选项。为什么？

from sys import exit 

def dead(why): 
    print why,"YOU ARE EATEN BY ZOMBIES!" 
    exit(0) 

def start(): 
    print "You wake up alone in a room.A crowed of corpses around you." 
    print "You find some tools beside maybe helpful." 
    print "What will you get?" 

    weapons = ['axe', 'bat', 'knife', 'pistol'] 
    print weapons 

while True: 
    weapon_choice = raw_input(">") 

    if weapon_choice in weapons: 
     print "Zombies walk towards you, now it's in urgency!" 
     print "You can't deal with them.You must flee!" 
     print "You find door and window.Where you will go?" 

     paths = raw_input(">") 

     if paths == "window": 
      dead("You fall down to the ground.") 
     elif paths == "door": 
      lift() 
     else: 
      dead("oops!") 

    else: 
     print "Can't understand what you say." 

def lift(): 
    print "You can't recognize the number in the lift." 
    print "Get out of the lift or tap a floor whatever. " 

    floor_choice = raw_input(">") 

    if floor_choice == "get out" and weapon_choice != "pistol": 
     dead("Outside full of zombies.You have nowhere to go.") 

    elif floor_choice == "get out" and weapon_choice == "pistol": 
     print "WOW!!!YOU KILL ALL THE ZOMBIES!!" 
     print "you get back to the bed for another sleep." 
     start() 
    elif floor_choice == "tap a floor" and weapon_choice == "axe": 
     street_1() 
    elif floor_choice == "tap a floor" and weapon_choice == "bat": 
     friends_axe() 
    elif floor_choice == "tap a floor" and weapon_choice == "pistol": 
     kill_frinends() 

    else: 
     print "Can't understand what you say." 


start() 

我以为什么时候运行，一开始就已经要求输入器输入weapon_choice。

Answer 1

首先，它看起来像你有一个缩进错误。一切从

while True: 

到

else: 
    print "Can't understand what you say." 

应在一个水平上标签，以便它是start函数内。

---

还有一个范围问题，在您的lift功能：不定义weapon_choice。

调用它时你应该通过weapon_choice作为参数传递给lift功能：

def start(): 
    print "You wake up alone in a room.A crowed of corpses around you." 
    print "You find some tools beside maybe helpful." 
    print "What will you get?" 

    weapons = ['axe', 'bat', 'knife', 'pistol'] 
    print weapons 

    while True: 
     # your while loop code here 

     elif paths == "door": 
      lift(weapon_choice) 

     # the rest of your while loop code here 

def lift(weapon_choice): 
    # your lift function code here 

---

在此之后，你只需要编写功能street_1，friends_axe和kill_frinends --then你”重做！

Answer 2

你应该得到：NameError: name 'weapons' is not defined

while True: 
    weapon_choice = raw_input(">") 

start()因此错误之前被调用。尝试将代码块封装在函数中以提高可读性和调试性。

更新：我相信你上面的代码缩进是不正确的。它工作正常，并且如您所期望的没有您提到的错误。