while循環中的sys.exit（）函數

我正在研究Zed Shaw的Python學習方法，我在練習36上。他希望我們製作一個類似於前35的遊戲。這是我的代碼。while循環中的sys.exit（）函數

def ninja_dojo(): 
    print """ 
    You enter a big room. 
    A ninja sits meditating between you and a door. 
    How do you get past the ninja? 
    """ 
    pass_ninja = False 

    while True: 

     move = raw_input('> ') 

     if move == 'walk quietly': 
      dead("As you pass the ninja, he springs up and guts you.") 

     elif move == 'greet ninja': 
      print "The ninja smiles and motions for you to pass." 
      arcade() 

     elif move == 'fight ninja': 
      dead("As you step forward to make your move, the ninja throws a Shuriken    that slits your throat. You slowly bleed out.") 

     else: 
      dead("The ninja notices you and kills you, thinking you're an intruder. ooops.") 
      exit(0)

當我運行這個並傳遞滿足else塊的東西時，我得到這個錯誤。

Traceback (most recent call last): File "/Users/Anusha/Desktop/Anusha/Freshmore/Python/ex1.py", line 834, in <module> 
    start() File "/Users/Anusha/Desktop/Anusha/Freshmore/Python/ex1.py", line 829, in start 
    ninja_dojo() File "/Users/Anusha/Desktop/Anusha/Freshmore/Python/ex1.py", line 807, in ninja_dojo 
    exit(0) SystemExit: 0

有人可以向我解釋這一點嗎？爲什麼不退出（0）在這裏工作？這裏是Zed的代碼，它工作得很好。

def gold_room(): 
    print "This room is full of gold. How much do you take?" 

    next = raw_input("> ") 

    if "0" in next or "1" in next: 
     how_much = int(next) 

    else: 
     dead("Man, learn to type a number.") 

    if how_much < 50: 
     print "Nice, you're not greedy, you win!" 
     exit(0) 
    else: 
     dead("Your greedy bastard!")

我開始我的「模塊從SYS進口出口：就像他對於我while循環，如果我在的地方退出使用break（0），它完美的作品我的問題是，爲什麼沒有按。「T退出（0）工作？由於一噸提前！

來源

2013-10-15 user2882228

以何種方式無效？似乎完全按照你的要求，提出異常退出程序。 –