Python_常见练习

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_

# 登录接口, 三次登录机会

flag = 0

user_data = {'username': '13564957378',
             'password': '123456'}

while True:

    username = str(input('请输入账号：')).strip()
    if username != str(user_data['username']):
        print('输入的账号不存在')
        continue

    # 读取lock.txt文件数据
    lock_data = []
    try:
        with open('lock.txt', 'r') as f:
            for line in f.readlines():
                lock_data.append(str(line).strip('\n'))
    except Exception:
        print('文件读取失败')
        raise

    while flag < 3:
        # 判断输入账号是否被锁住
        if username in lock_data:
            print('您的账号已被锁住，请联系管理员')
            break
        else:
            password = str(input('请输入密码')).strip('\n')
            if username == str(user_data['username']) and password == str(user_data['password']):
                print('{0} 登录成功!欢迎进入qc系统'.format(username))
                import sys
                sys.exit()
            else:
                print('您还有{0}机会'.format(str(2-flag)))
        flag += 1
    else:
        # 写入三次登录失败的账号进入lock文件
        with open('lock.txt', 'w') as f:
            f.writelines('{0}'.format(username)+'\n')
        break

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_

# 九九乘法表

for x in range(1, 10):
    for y in range(1, x+1):
        print('{0}*{1}={2}'.format(x, y, x*y), end=' ')
    print()

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_
from __future__ import print_function


"""
使用#号输出一个长方形，用户可以指定宽和高
"""

width = int(str(input('请输入宽度')).strip())
height = int(str(input('请输入长度')).strip())

if isinstance(width, int) and isinstance(height, int):
    if width > 0 and height > 0:
        for x in range(1, width+1):
            for y in range(1, height+1):
                print('#', end='')
            print()

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_

# 直角三角形

flag = 5

for a in range(1, flag+1):
    for b in range(1, a+1):
        print('*', end='')
    print()

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_

# 倒直角三角

flag = 5

while flag > 0:
    
    temp = flag
    while temp > 0:
        print('*', end='')
        temp -= 1
    print()
    
    flag -= 1

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_
import sys

# 购物车,LIST TYPE
trolley = []

# 工资默认5000,INT TYPE
salary = 5000

FLAG = True

STATUS = ['SUCCESS', 'FAIL', 'ERROR', 'WARN']

goods = {
    '核心编程2': 60,
    '核心编程3': 65,
    '流畅的Python': 90,
    'Python学习手册': 100,
    'mac book': 9000
}


def log_info(msg):
    return print(msg)


def cutting_line():
    return log_info('*******************************************************')

while FLAG:

    # 输入Y则进行购物操作，否则退出程序
    order_input = str(input('是否进行购物[Y/N]！')).strip()

    if order_input not in ['Y', 'N']:
        log_info('{0} 指令输入有误,请重新输入！'.format(STATUS[2]))
    elif order_input == 'Y':

        cutting_line()
        log_info('编号：%-5s 商品名称：%-12s  商品价格：(元)' % ('\t', '\t'))

        good_items = 1
        shopping_goods = []

        # 商品列表清单
        for good, price in goods.items():

            log_info('%-10s\t %-18s \t %s\033[0m' % (good_items, good, price))
            shopping_goods.append(good)
            good_items += 1

        # 购买逻辑
        while FLAG:

            shopping_order = str(input('请选择需要购买的货物！')).strip()
            if shopping_order not in shopping_goods:
                log_info('{0} 指令输入有误,请重新输入！'.format(STATUS[2]))
            else:
                if salary < int(goods[shopping_order]):
                    log_info('{0} 金额不足，请重新选择！'.format(STATUS[1]))
                    break
                elif salary >= int(goods[shopping_order]):
                    trolley.append(shopping_order)
                    salary -= int(goods[shopping_order])
                    log_info('已加入{0}到你的购物车， 当前余额:{1}'.format(shopping_order, salary))
                    going_oder = str(input('是否继续购买？')).strip()
                    if going_oder != 'Y':
                        FLAG = False
        else:
            cutting_line()
            log_info('购买的商品为：')
            for item, good in enumerate(trolley):
                log_info('{0}       {1}'.format(item+1, good))
            else:
                log_info('您的余额还剩:{0}'.format(str(salary)))

    else:
        cutting_line()
        log_info('{0} 欢迎下次光临！'.format(STATUS[0]))
        sys.exit()

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_
# 三级菜单
#   打印省、市、县三级菜单
#   可返回上一级
#   可随时退出程序

menu = {
    '山东': {
        '青岛': ['四方', '黄岛', '崂山', '李沧', '城阳'],
        '济南': ['历城', '槐荫', '高新', '长青', '章丘'],
        '烟台': ['龙口', '莱山', '牟平', '蓬莱', '招远']
    },
    '江苏': {
        '苏州': ['沧浪', '相城', '平江', '吴中', '昆山'],
        '南京': ['白下', '秦淮', '浦口', '栖霞', '江宁'],
        '无锡': ['崇安', '南长', '北塘', '锡山', '江阴']
    },
    '浙江': {
        '杭州': ['西湖', '江干', '下城', '上城', '滨江'],
        '宁波': ['海曙', '江东', '江北', '镇海', '余姚'],
        '温州': ['鹿城', '龙湾', '乐清', '瑞安', '永嘉']
    },
    '安徽': {
        '合肥': ['蜀山', '庐阳', '包河', '经开', '新站'],
        '芜湖': ['镜湖', '鸠江', '无为', '三山', '南陵'],
        '蚌埠': ['蚌山', '龙子湖', '淮上', '怀远', '固镇']
    },
    '广东': {
        '深圳': ['罗湖', '福田', '南山', '宝安', '布吉'],
        '广州': ['天河', '珠海', '越秀', '白云', '黄埔'],
        '东莞': ['莞城', '长安', '虎门', '万江', '大朗']
    }
}

FLAG = True


def log_info(msg):
    print(msg)

while FLAG:

    # 省一级菜单显示
    province = list(menu.keys())

    log_info('#####省一级菜单#####')
    for index, state in enumerate(province):
        print('{0}      {1}'.format(index+1, state))
    else:
        going_order = str(input('first 是否继续？Y/N')).strip()
        if going_order != 'Y':
            FLAG = False

    # 市二级菜单
    while FLAG:

        county_order = str(input('选择菜单？')).strip()

        log_info('#####市二级菜单#####')
        county = []
        for value in menu[county_order]:
            county.append(value)
        for index, prefecture in enumerate(county):
            print('{0}      {1}'.format(index + 1, prefecture))
        else:
            going_order = str(input('second 是否继续？Y:继续，N：返回上一级,Q:退出')).strip()
            if going_order == 'Y':

                while FLAG:

                    # 县三级菜单
                    clark_order = str(input('选择菜单？')).strip()
                    log_info('#####县三级菜单#####')
                    clark = []
                    for value in menu[county_order][clark_order]:
                        clark.append(value)
                    for index, value in enumerate(clark):
                        print('{0}      {1}'.format(index + 1, value))
                    else:
                        going_order = str(input('third 是否继续？Y:继续，N：返回上一级,Q:退出')).strip()
                        if going_order == 'Y':
                            continue
                        elif going_order == 'N':
                            break
                        else:
                            FLAG = False

            elif going_order == 'N':
                break
            else:
                FLAG = False

 

#!/usr/bin/env python3
# _*_ coding:utf-8 _*_
# ========================================================
# Module         :  list_set
# Author         :  luting
# Create Date    :  2018/3/13
# Amend History  :  2018/3/13
# Amended by     :  luting
# ========================================================
from __future__ import print_function
import functools
'''列表联动'''


def list_sorted(func):

    @functools.wraps(func)
    def wrapper(*args):
        if isinstance(args[0], list) and isinstance(args[1], list):
            return sorted(args[1], key=lambda x: args[0].index(x))

    return wrapper


@list_sorted
def test(a, b):
    pass
print(test([3, 5, 6, 1, 7, 4], [1, 6, 3]))