今天刚注册了一个账号，先试试，放一两个以前写的小程序：
1.输出名片
name = raw_input('Please input your name: ')
age =int(raw_input('Please input your age: '))
job = raw_input('Please input your job: ')
msg='''
Infomation of user %s:
—————Start————
Name : %s
Age : %d
Job : %s
—————End—————'''% (name,name,age,job)
print (msg)
2.密码设置隐藏
import getpass #保护密码，只要不打印就显示不出来密码
username = raw_input('username:')
password = getpass.getpass('password:')
print(username,password)
3.密码设置隐藏（升级优化）
import getpass
name = raw_input('请输入用户名:')
pwd = getpass.getpass('请输入密码：')
if name == 'lucia' and pwd =='cmd':
print('hello!')
else:
print('出错啦！')
4.一个小登陆程序
user = 'lucia'
passwd = 'gohome'
username = raw_input('username:')
password = raw_input('password:')
if user == username:
print 'username is correct...'
if password == passwd:
print 'welcome login...'
else:
print'password is invalid...'
else:
print'连用户名都没对，一边呆着去。。。'
5.猜年龄游戏
age = 22
guess_num = int(raw_input('input your guess num:'))
if guess_num == age:
print'congratulations! you got it!'
elif guess_num > age:
print'think smaller!'
else:
print'think larger'
6.猜年龄游戏_优化1
age = 22
for i in range(10):
guess_num = int(raw_input('input your guess num:'))
if guess_num == age:
print'congratulations! you got it!'
break
elif guess_num > age:
print'think smaller!'
else:
print'think larger'
7.猜年龄游戏_优化2
age = 22
for i in range(10):
if i < 3:
guess_num = int(raw_input('input your guess num:'))
if guess_num == age:
print'congratulations! you got it!'
break
elif guess_num > age:
print'think smaller!'
else:
print'think larger'
else:
print'too many attemps...bye!'
break
8.猜年龄游戏_优化3
age = 22
counter = 0
for i in range(10):
if counter < 3:
guess_num = int(raw_input('input your guess num:'))
if guess_num == age:
print'congratulations! you got it!'
break
elif guess_num > age:
print'think smaller!'
else:
print'think larger'
else:
continue_confirm = input('do you want to continue:')
if continue_confirm == 'y':
counter = 0
continue
else:
print('bye')
break
9.登陆三次小程序
import getpass
user = 'lucia'
pwd = 123
username = raw_input('Please input your name:')
password = getpass.getpass('Please input your password:')
i = 0
if i < 3:
i += 1
if username == user and password == pwd:
print 'Welcome login....'
else:
print'your name or password invalid...'
continue
10.看某数是否在该列中，找到后进行替换，有多次出现的话用for循环进行多次替换
name = [1,2,3,4,5,6,7,8,9,1,2,3,5,6,8,1,2,3,6,1,4]
if 4 in name:
ele_num = name.count(4)
ele_position = name.index(4)
print 'num is %d,position is %s' %(ele_num,ele_position)
print name
for i in range(ele_num):
ele_position = name.index(4)
name[ele_position] = 40
print name
11.字符串格式化
msg = 'hahah{0},dddd{1}'
print msg.format('_lucia','_home')#格式化
print (msg[1:2])#切片
print(name.center(40,'-'))#将字符串居中，两边用横杠填充
print(name.find('c'))#找相关字符，若有是index，若没有就是-1
12.判断输入是否为数字，若为字母就出错。
age = raw_input('your age:')
if age.isdigit():
age = int(age)
else:
print 'invalid data type!'
13.字符串部分函数
name = 'alexsdf'
print(name.isalnum()) #判断是否有特殊字符
print(name.endswith('sss')) #判断是否以某个字符串结束
print(name.startswith('alex')) #判断是否以某个字符串开始
print(name.upper()) #某个字符串转换成大写
print(name.lower()) #某个字符串转换成小写
name1 = ' lucia '
print name1.strip() #去掉字符串两边的空格
14.字典函数实例
id_db = {
612123198110266124:{
'name':'lucia',
'age' :32,
'addr':'shaanxi'
},
612123198110266324:{
'name':'luca',
'age' :31,
'addr':'shanxi'
},
602123198310266125:{
'name':'lua',
'age' :32,
'addr':'shandong'
},
}
print id_db
id_db[602123198310266125]['name'] = 'luciaaa'#修改字典里面的名字
del id_db[602123198310266125]['age']#用del删掉字典里面的年龄
id_db[612123198110266324].pop('name')#用pop删掉字典里面的姓名
print (id_db[602123198310266125])
print (id_db[612123198110266324])
print(id_db.setdefault(612123198110266124))#取一个key，如果存在就取出value
print(id_db.setdefault(61212319811026612455))#取一个key，如果不存在就创建一个key,value为none
print(id_db.setdefault(37147119930614363223434,"hahha"))#给创建的key赋值
print(id_db.fromkeys([1,2,3,8,9,5,6,7],'lucia'))#将列表里面的每个数排序后都赋值为lucia
15.for 显示所有的key和value
for key in id_db:
print key,id_db[key]
16.购物小程序
salary = raw_input('Input your salary:')
if salary.isdigit():
salary = int(salary)
else:
exit('Invilid data type...')
welcome_msg = 'Welcome to Lucia shopping mall'.center(50,'-')
print(welcome_msg)
exit_flag = False
product_list=[
('iphone',5888),
('mac air',8000),
('mac pro',9000),
('xiaomi',19.9),
('coffee',30),
('tesla',820000),
('bick',700),
('cloth',200)
]
shop_car = []
while exit_flag is not True:
print ('product list'.center(50,'*'))
for item in enumerate(product_list):
index = item[0]
p_name = item[1][0]
p_price = item[1][1]
print(index,'.',p_name,p_price)
user_choice = input('[q=qiut,c=check]What do you want to buy?')
if user_choice.isdigit():#首先是选择商品
user_choice = int(user_choice)
if user_choice < len(product_list):#判断商品编号是否小于列表长度
p_item = product_list[user_choice]
if p_item[1] <= salary: #判断是否买得起
shop_car.append(p_item)#放入购物车
salary -= p_item[1] #扣钱
print('Added [%s] into shop_car,your balance is [%s]'%
(p_item,salary))
else:
print('Your balance is [%s],cannot afford this...'% salary)
else:
if user_choice == 'q' or user_choice =='quit':
print('Purchased product as below.center(40,'*')')
for item in shop_car:
print item
print('END'.center(40,'*'))
print('Your balance is [%s]'% salary)
print('Bye')
exit_flag = True
elif user_choice == 'c' or user_choice =='check':
print('Purchased product as below.center(40,'*')')
for item in shop_car:
print item
print('END'.center(40,'*'))
print('Your balance is [%s]'% salary)