if,else判断

Age of oldboy =56orm

Guess_age =int(input(“guess age:”))input

If guess_age ==age_of_oldboy :it

       Print(“yes,you,got it,”)form

Elif guess_age > age_of_oldboy:密码

       Print(“think smaller…”)db

Else:word

       Print (“think bigger!”)co

 

 

 

用户名判断ab

_username = ’alex’               用户

_password = ’abc123’             密码

Username =input (“username:”) 

Password =input (“password:”)

If _username == username and _password == password:

       Print(“welcome user {name} login…”.format(name=username)) 成功 

Else:

       Print(“invalid username or password!”)    不成功

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