标签:username 登录 please flag 设置 print input password your
登录操作(方法一:设置flag标志位)
user_name="star"
passwoed='123'
passed_authentication=False
count=0
for i in range(3):
u_username=input("please input your username:")
u_password=input("please input your password:")
if u_username==user_name and u_password==passwoed:
print("welcome to %s"%u_username)
passed_authentication=True
break
else:
count+=1
print("your username or password is Error")
if not passed_authentication:
count==3
print("you have try more times,would you want to try again? please input yes or no,please choose")
answer=input("your choose:")
if answer=='yes':
print("go away,hahahah")
Input:正确操作
please input your username:qwe
please input your password:222
your username or password is Error
please input your username:star
please input your password:123
welcome to star
进程已结束,退出代码0
Input:错误操作
please input your username:aa
please input your password:aa
your username or password is Error
please input your username:aa
please input your password:aa
your username or password is Error
please input your username:aa
please input your password:aa
your username or password is Error
you have try more times,would you want to try again? please input yes or no,please choose
your choose:yes
go away,hahahah
进程已结束,退出代码0
标签:username,登录,please,flag,设置,print,input,password,your 来源: https://www.cnblogs.com/startl/p/11732178.html
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