Python基础学习 One

格式化输出

#!/usr/bin/env python
import getpass
name = getpass.getpass("please")
age = getpas
s.getpass("please")
year = getpass.getpass("please")
info = '''-----info %s----- 
name = %s
age = %s
year = %s'''%(name,name,age,year)

输出格式

-----info yzd----- 
name = yzd
age = 23
year = 1997
---------------

输出字符类型

print(type(age))

强制定义字符类型

name = int(input("age:"))

getpass模块

判断账号密码是否输入正确

#!/usr/bin/env python
import getpass
name = getpass.getpass('please')
age = getpass.getpass('please')
name2 = 'yzd'
age2 = '23'
if name==name2 and age==age2:
    print(name,age)
else:
    print('not yes')

输出加入变量

#!/usr/bin/env python
import getpass
name = getpass.getpass('please')
age = getpass.getpass('please')
name2 = 'yzd'
age2 = '23'
if name==name2 and age==age2:
    print('Welcome user {name} login...'.format(name=name2))
else:
    print('not yes')

while与if连用（猜数演示）

#!/usr/bin/env python
age_old = 56
count = 0
while count < 3:
    guess_age = int(input("guess age: "))
    if guess_age == age_old :
        print('yes you are right')
        break
    elif guess_age > age_old:
        print('you guess too big')
    else:
        print('you guess too small')
    count += 1
else:
    print('you guess too mach')