num = 0 while num < 3:Name = input('請(qǐng)輸入賬號(hào)： ')Passwd = input('請(qǐng)輸入密碼：')if Name == 'kebi' and Passwd == '123':print('登陸成功。')breakelse:print('你還有%d登陸機(jī)會(huì)' % (2-num))if 2-num == 0:Next = input('你還想再試試嗎：Y or N')if Next == 'Y':num = 0continueelse:print('期待與您再次相遇')num +=1

?下面是修改之后：

number = 0 while number <3: #多次輸入，肯定要循環(huán)Name = input('name： ') #賬號(hào)密碼肯定要交互Passwd = input('passwd: ')if Name == 'kebi' and Passwd == '123':print('welcome.')breakelse: #密碼不正確之后，沒(méi)有到0次機(jī)會(huì)之前打印if number == 2:print("You have entered the error three times")asc = input('You want to try again? you can enter Y to continue:').lower()if asc == 'y':number = 0continueelse:print('Looking forward to meeting with you')else:print('you have %d choice' % (2 - number))number +=1

?

轉(zhuǎn)載于:https://www.cnblogs.com/yangmingxianshen/p/7698110.html

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