在Python 3（例外，循環）憋屈錯誤

Question

所以，我想在這裏做的是，如果你把一個字符串，而不是一個整數，你回去開始

但對於一些因此，當你把一個字符串

while True: 
    try: 
     print("Will select a random number between selected limits: 'x' and 'y'") 
     x = int(input("x = ")) 
    except ValueError: 
     print("Please enter a number") 
     break 

Answer 1

while True: 
    try: 
     print("Will select a random number between selected limits: 'x' and 'y'") 
     x = int(input("x = ")) 
     y = int(input("y = ")) 
    except ValueError: 
     print("Please enter a number") # don't break here, let loop repeat 
    else: 
     break # only break when there is no error 

Answer 2

更短，通過一行程序只是停止）：

while True: 
    try: 
     print("Will select a random number between selected limits: 'x' and 'y'") 
     x = int(input("x = ")) 
     y = int(input("y = ")) 
     break # only break when there is no error 
    except ValueError: 
     print("Please enter a number") # don't break here, let loop repeat