[PyProj] Think in Python:

Tag: ack try = = Hand Stat Programs Erro objects not

1. Programs is composed of modules.
2. Modules contain statements.
3. Statements contain expressions.
4. Expressions Create and Process objects.

HandlingErrorsBy testing Inputs

"""
(1) Judging input
"""
whiletrue:reply=input('Enter Text:')
　　ifReply = ='Stop': Break 　　 elif  notreply.isdigit ():Print('bad!'* 8)Else:Print(int (Reply) * * 2)Print('Bye')"""
(2) What if the input is not a number?
"" "# Method one
 whiletrue:reply= Input ('Enter Text:')ifReply = ='Stop':Break 
 　　 # if illegal str, execute except 　　 Try : num=Int (Reply)except:Print('bad!'* 8)Else:Print(NUM * * 2)Print('Bye')# Method Two whiletrue:reply= Input ('Enter Text:')ifReply = ='Stop': Break 　　 elif  notReply.isdigit (): # If it's not a numberPrint('bad!'* 8)Else: # If the number num=Int (Reply)ifNum < 20:Print(' Low')Else:Print(NUM * * 2)Print('Bye')

[PyProj] Think in Python: