Python 学习第一周

Posted 2021-12-16 hapen66

一、pycharm安装

https://www.cnblogs.com/dcpeng/p/9031405.html

二，代码联系

1、输入输出（明文）：

　　username = input("usrname:"）

       password = input("password:"）

　　print(username,password)

2、输入输出（暗文）：

 

import getpass ##输入的时候没有显示输入字符

 username = input("usrname:")

password = getpass.getpass("password:")
print(username,password)

 

3、验证输入的账号密码是否正确：

 

_username = ‘alex‘
_password = ‘abc123‘
username = input("username")
password = input(‘password:‘)
if _username == username and _password ==password:
    print("Welcome user name login...".format(name=username))
else:
    print("Invalid username or password!")

 4、猜年龄 if else 

age_of_oldboy = 56
guess_age = int(input("guess age:"))###输入必须为整数，不让报错
if guess_age == age_of_oldboy:
    print("yes,you got it.")
elif guess_age > age_of_oldboy:
    print("think smaller....")
else:
    print("think bigger!")

5、while循环

count = 0
while True:
    print("count:",count)
    count = count+1
    if count ==100:
        break
输出0-99