user='liangml' passwd='liangml' username=input('username:') password=input('password:') #優化前 ''' if user == username: print('usernameiscorrect...') if passwd == password: print('welcomelogin...') else: print('passwordifinvalid...') else: print('user name is not...') ''' ''' #優化後 if user == username and passwd == password: print('Welcomelogin') else: print('Invalid user name or password...') ''' --------------------分界線---------------------- If語句猜年齡小遊戲 age=22 guess_num=int(input('inputyourguessnum:')) if guess_num==age: print('Congratulations!yougotit.') elif guess_num>age: print('Thinksmaller!') else: print('ThinkBig...')
if語句
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