Python3运维学习笔记2

if判断

# -*- coding:utf-8 -*-
# import getpass
# if判断
_username = "sjw"
_password = "123"
username = input("username:")
password = input("password:")
if _username == username and _password == password:
    print("welcome user {name} login... ".format(name=username))
else:
    print("ERROR:name or passwd is error")

while循环 

 

# -*- coding:utf-8 -*-
old_age = "65"
count = 0
while count < 3:
    age = input("guess age:")
    if old_age == age:
        print("yes,you got it")
        break
    elif old_age > age:
        print("think smaller...")
    else:
        print("think bigger....")
    count += 1
    print(count)
else:
    print("you have tried too many times.. fuck off")