錯誤和異常循環

Question

嗨我想循環我的程序，只要它遇到異常，它就會從頭開始重新啓動！

>>> while True: 
...  try: 
...   x = int(raw_input("Please enter a number: ")) 
...   break 
...  except ValueError: 
...   print "Oops! That was no valid number. Try again..." 

我怎樣才能做到這一點

Answer 1

你想刪除的break在try聲明。它告訴python退出while循環。

try: 
     x = int(raw_input("Please enter a number: ")) 
    except ValueError: 
     print "Oops! That was no valid number. Try again..."