2016-05-26 3 views

答えて

0

あなたはとValueErrorとループそれをキャッチする必要があります。

newGen = None 
while newGen is None or (newGen < 5 or newGen > 25): 
    try: 
     newGen = int(input("Input number of new generations to model (should be between 5 and 25\n)")) 
    except ValueError: 
     pass 
0
newGen = 0 
while newGen not in range(5, 26): 
    newGen = int(input("Input number of new generations to model (should be between 5 and 25\n)")) 
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