Python学习day2作业总结
#!/usr/bin/env python# _*_coding:utf-8_*_
'''
* Created on 2016/10/18 22:01.
* @author: Chinge_Yang.
'''
import os
import getpass
import datetime
menu = {
"Mobile phone": [
("Iphone7", 6188),
("Iphone7 plus", 7888),
("Xiaomi5", 2888)
],
"Car": [
("Audi Q5", 490000),
("Ferrari 488", 4888888)
],
"Drink": [
("Milk", 59),
("Coffee", 30),
("Tea", 311)
]
}
user_file = "user.txt"
shopping_log = "shopping.log"
money = 0 #初始金额
all_cost = 0
shopping_cart = {}
exit_user_flag = False
exit_flag = False
exsit_flag = False
if not os.path.exists(user_file):
f = open(user_file,'w')
f.close()
if not os.path.exists(shopping_log):
f = open(shopping_log,'w')
f.close()
def show_shopping_cart (): #显示购物车，更新用户信息，exit前使用
#显示购物车信息
print("You purchased products as below".center(50,"*"))
print("%-20s %-15s %-10s %-20s" %("Goods","Price","Number","Cost"))
for key in shopping_cart:
p_name = key
p_price = int(key)
p_number = int(shopping_cart)
print("%-20s %-15s %-10s \033[32;1m%-20s\033[0m" %(p_name,p_price,p_number,p_price*p_number))
print("End".center(50,"*"))
print("%-20s %-15s %-10s \033[32;1m%-20s\033[0m" %("You total cost:","","",all_cost))
print("Your balance is [\033" % money)
if new_user is True:
# 将新用户信息写入到用户文件中
file = open(user_file, "a")
file.write("%s %s %s\n" % (user_name, user_passwd, money))# 用户、密码、金钱存入用户文件
file.close()
else:
if old_money != money:#充值或买了东西
# 将旧用户信息更新到用户文件中
old_user_info = "%s %s %s" % (user_name, user_passwd, old_money)
new_user_info = "%s %s %s" % (user_name, user_passwd, money)
with open(user_file) as file:
info = file.read()
new_info = info.replace(old_user_info,new_user_info)
with open(user_file,"w") as file:
file.write(new_info)
while exit_user_flag is not True:
#输入用户密码
user_name = input("Please input your name:").strip()
#user_passwd = input("Please input your password:").strip()
user_passwd = getpass.getpass("\033[1;33mPlease input your password:\033[0m")
if user_name == '' or user_passwd == '':
continue
elif ' ' in user_name:
print("\033[31;1mNot allowed to contain spaces!\033[0m")
continue
#查看是否存在于用户数据库
user_check = open(user_file)
for l in user_check:
l = l.split()
user = l
passwd = l
if user_name == user: #老用户
new_user = False #标记为老用户
money = int(l) #记录用户余额
old_money = money #旧余额
if not passwd == user_passwd:
print ("\033[1;31mYour password is error!\033[0m".center(50,"*"))
else:
print ("\033[1;31mWelcome to go shopping!\033[0m".center(50,"-"))
exit_user_flag = True
break
else:
new_user = True #标记为新用户
exit_user_flag = True
user_check.close()#关闭
if not new_user: #旧用户
#读取购物历史，判断是否有此用户记录
file = open(shopping_log)
for line in file:
line = line.split()
line_user = line
if line_user == user_name:#存在记录
exsit_flag = True
break #跳出检测
file.close()
if exsit_flag is True: #内容不为空
#只有输入y或者yes才读取显示购物历史，否则不显示
print("Input \033\033\033[0m means not.")
see_history = input("Please input:").strip()
if see_history == "y" or see_history == "yes":
# 显示用户购物历史
# output = os.system("grep %s %s" %(user_name,shopping_log))
# print(output.read())
print("User %s shopping history:" % user_name)
print("%-20s %-15s %10s %20s" %("Username","datetime","Number","Goods"))
file = open(shopping_log)
for line in file:
line = line.split("\t")
line_user = line
if line_user == user_name:#存在记录
print("%-10s %-15s %10s %20s" % (line,line,line,line.strip()))
file.close()
else:
print("You are not to view your purchase history!")
print("-".center(50,"-"))
one_layer_list = [] #一级菜单
while True:
while True:
#打印各类菜单
print("Species list".center(50,"-"))
for index, item in enumerate(menu):
print("\033[32;1m%d\033[0m --> %s" % (index, item))
one_layer_list.append(item)
print("End".center(50,"-"))
print(" to quit")
once_choice = input("Input your choice:").strip()
if once_choice.isdigit(): #输入数字
once_choice = int(once_choice)
if 0
页:
[1]