#!/usr/bin/env python3

# -*- coding:utf-8 -*-

# Liu Lei

import  getpass

username = input("username:")

password = getpass.getpass("password:")

print(username,password)

#!/usr/bin/env python3

# -*- coding:utf-8 -*-

# User xxxx

username = input("username:")

age = int(input("age:"))   #integer

print(type(age),type(str(age)))

password = input("password:")

print(type(password))

info1 = '''

---- info of '''+ username +'''----

Name:'''+username+'''

Pawd:'''+ password

info2 = '''

---- info of  %s----

Name:%s

Age:%d

Pawd:%s

'''%(username,username,age,password)

info3 = '''

---- info of {Name}----

Name:{Name}

age:{Age}

Pawd:{Password}

'''.format(Name=username,

           Age=age,

           Password=password)

print(info1)

print(info2)

print(info3)

格式 描述

%% 百分号标记 #就是输出一个%

%c 字符及其ASCII码

%s 字符串

%d 有符号整数(十进制)

%u 无符号整数(十进制)

%o 无符号整数(八进制)

%x 无符号整数(十六进制)

%X 无符号整数(十六进制大写字符)

%e 浮点数字(科学计数法)

%E 浮点数字(科学计数法，用E代替e)

%f 浮点数字(用小数点符号)

%g 浮点数字(根据值的大小采用%e或%f)

%G 浮点数字(类似于%g)

%p 指针(用十六进制打印值的内存地址)

%n 存储输出字符的数量放进参数列表的下一个变量中

info3 = '''

---- info of {0}----

Name:{1}

age:{2}

Pawd:{3}

'''.format(username,username,age,password)

#!/usr/bin/env python3

# -*- coding:utf-8 -*-

# xxxx

num = 33

count = 0

while count < 3:

    guess_num = int(input("input num:"))

    if guess_num == num:

        print("yes,you got it.")

        break

    elif guess_num  > num:

        print("think smaller...")

    else:

        print("think bigger!")

    count +=1

else:

    print("you have tried too many times...fuck off")

#!/usr/bin/env python3

# -*- coding:utf-8 -*-

# xxxx

for i in range(0,10,2):

    print("loop",i)