先上流程图，还得27寸4K显示器，画图各种爽：

ReadMe：

运行程序前的提示：    1.抱歉，你得装prettytable模块......    2.还得抱歉，如果shell中运行，最好把字体调得小点，表格比较长......蛋疼为什么写两个版本：    武sir这期的作业不是很难，但有一个需求的逻辑个人感觉不是很合理：普通用户可以选择管理员操作的选项。    当然银角的目的是为了我们把装饰器运用到实际程序中。    一般页面展示中，管理员操作选项对于普通用户会做两种处理：    1、将选项灰色显示或者不能点击    2、普通用户登录后不显示管理员操作选项，如果管理员登录后则显示    出于以上原因，我写了两个版本。    所以写代码注释时，我只写了第一个版本的，即crm.py两个版本区别：    第一个版本crm.py 基本是按武sir的需求写的，略有不同的是，我把登陆和注册作为入口    第二个版本crm_v2.py 是在第一个版本基础上稍作修改，只是判断登录用户的是否为管理员，如果管理员登录则比普通用户多显示管理操作选项文件说明：    crm.py:第一个版本，管理员以及普通用户操作均显示在主菜单    crm_v2.py:第二个版本，主菜单根据登录用户的角色判断是否显示管理员操作的选项    user_info：用户信息，以管道符隔开：账号|密码|邮箱|电话|用户角色测试账号：    可以自己注册，也可以使用现成的。    管理员：admin/admin     alex/3714    普通用户：chengchen/123  cc/123操作流程：    登录/注册---->用户操作主菜单（普通用户操作【查看账户信息，修改帐户信息】，管理员操作【搜索，遍历用户，提升权限，重置密码】）功能：    1.程序入口为登录、注册页面，用户可选择对应操作    2.登录时添加了随机验证码的功能    3.登录后显示操作主菜单，普通用户可查看本帐户信息，也可修改帐户信息    4.管理员操作权限做了限制，如果普通用户选择会提示用户权限不足    5.管理员可对所有用户进行搜索、遍历所有用户、提升权限、重置所有用户密码、增加删除用户等操作    6.管理员提升用户权限时，会对账号角色进行判断，如果已为管理员，会提示    7.用户做修改操作时，避免了多个用户账号前几个字母相同时出现的用户越权现象:比如管理员为chengchen,普通用户为chengc    8.显示用户信息时，对密码加密显示，并且查找时，对密码字段不进行查找

 

user_info 文件：

alex|3714|alex@gmail.com|13956093410|1admin|admin|admin@admin.org|18888888888|1chengchen|110|chengchen@163.com|18601206666|0chengc|456|chengc@oldboy.com|18601203885|1cc|123|niubi@niubi.com|13333333333|0123|123|123@163.com|18601208888|0ccccc|123|123@ccccc.com|18409573465|0ccc|ccc|ccc@oldboy.org|18739549566|0

Code version1:

#!/usr/bin/env python# -*-coding=utf-8-*-# Auther:ccorz Mail:ccniubi@163.com Blog:http://www.cnblogs.com/ccorz/# GitHub:https://github.com/ccorzorzimport prettytable, time, random, osUSER_STATE = FalseLOGIN_STATE=FalseUSER_NAME = Nonedef check_user_type(func):    def inner(*args, **kwargs):        if USER_STATE:            r = func(*args, **kwargs)            return r        else:            print('\033[31;1m用户%s权限不够，管理员才可使用此功能\033[0m' % USER_NAME)    return innerdef check_user_state(USER_NAME):    with open('user_info', 'r') as f:        for line in f:            line = line.strip()            if line.startswith(USER_NAME) and USER_NAME == line.split('|')[0]:                user_states = line.split('|')[4]                if user_states == '1':                    global USER_STATE                    USER_STATE = True                else:                    pass    return USER_STATEdef user_name_list():    name_list = []    with open('user_info', 'r') as f:        for line in f:            name_list.append(line.strip().split('|')[0])        return name_listdef user_pwd_list():    pwd_list = []    with open('user_info', 'r') as f:        for line in f:            pwd_list.append(line.strip().split('|')[1])        return pwd_listdef veri_code():    li = []    for i in range(6):        r = random.randrange(0, 5)        if r == 1 or r == 4:            num = random.randrange(0, 9)            li.append(str(num))        else:            temp = random.randrange(65, 91)            char = chr(temp)            li.append(char)    r_code = ''.join(li)    print('\033[31;1m%s\033[0m' % r_code)    return r_codedef find_user_line_list(USER_NAME):    with open('user_info','r') as f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                user_name=USER_NAME                pwd=line.strip().split('|')[1]                mail=line.strip().split('|')[2]                tel=line.strip().split('|')[3]                user_t=line.strip().split('|')[4]                line_list=[user_name,pwd,mail,tel,user_t]            else:                pass    return line_listdef change_pwd(USER_NAME):    new_pwd=input('请输入新的密码:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[1]=new_pwd                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef change_mail(USER_NAME):    new_mail=input('请输入新邮箱:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[2]=new_mail                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef change_tel(USER_NAME):    new_tel=input('请输入新的电话号码:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[3]=new_tel                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef modify_user_info(USER_NAME):    row=prettytable.PrettyTable()    row.field_names=['修改密码','修改邮箱','修改联系电话']    row.add_row([1,2,3])    print(row)    while True:        inp=input('请选择功能菜单,\033[32;1m返回主菜单请输入b或者back\033[0m:')        if inp == '1':            res=change_pwd(USER_NAME)            if res:                print('密码修改成功')                break        elif inp == '2':            res=change_mail(USER_NAME)            if res:                print('邮箱修改成功')                break        elif inp == '3':            res=change_tel(USER_NAME)            if res:                print('电话修改成功')                break        elif inp == 'back' or inp == 'b':            break        else:            print('输入有误,请重新输入!')    return Truedef no_pwd_file():    with open('user_info', 'r') as f, open('no_pwd', 'w') as new_f:        for line in f:            line = line.strip().lower().split('|')            del line[1]            line = '|'.join(line)            new_f.write('%s\n' % line)@check_user_typedef show_all_user():    no_pwd_file()    row = prettytable.PrettyTable()    row.field_names = ['用户名', '密码', '邮箱', '电话', '账户类型']    with open('no_pwd','r') as f:        for line in f:            line = line.strip()            if line.split('|')[3]=='1':                user_type='管理员'            elif line.split('|')[3]=='0':                user_type='普通用户'            row.add_row([line.split('|')[0],'***',line.split('|')[1],                         line.split('|')[2],user_type])    print(row)    os.remove('no_pwd')    return Truedef show_user_info(USER_NAME):    user_info_list = []    with open('user_info', 'r') as f:        for line in f:            line = line.strip()            if line.startswith(USER_NAME) and USER_NAME == line.split('|')[0]:                user_info_list.extend(line.split('|'))        if len(user_info_list) == 0:            print('无此用户或者没有相关权限')        else:            user_type = None            if user_info_list[4] == '1':                user_type = '管理员'            elif user_info_list[4] == '0':                user_type = '普通用户'            row = prettytable.PrettyTable()            row.field_names = ['用户名', '密码', '邮箱', '电话', '账户类型']            row.add_row([user_info_list[0], '****', user_info_list[2],                         user_info_list[3], user_type])            print(row)def regis():    name_list = user_name_list()    i = 0    while i < 3:        name = input('请输入用户名:')        if name in name_list:            print('用户名%s已被注册' % name)            i += 1            return False,name        else:            pwd = input('请输入密码:')            mail = input('请输入邮箱:')            tel = input('请输入电话:')            info = [name, pwd, mail, tel, '0']            new_line = '|'.join(info)            with open('user_info', 'a') as f:                f.write('%s\n' % new_line)            break    return True,namedef login():    name_list = user_name_list()    pwd_list = user_pwd_list()    exit_flag = 0    i_a = 0    i_b = 0    i_c = 0    while i_a < 3 and exit_flag == 0:        USER_NAME= input('请输入用户名:')        if USER_NAME in name_list:            while i_b < 3 and exit_flag == 0:                pwd = input('请输入%s的密码:' % USER_NAME)                if pwd == pwd_list[name_list.index(USER_NAME)]:                    while i_c < 3 and exit_flag == 0:                        r_code = veri_code()                        c_cod = input('请输入红色字体显示的校验码:')                        if c_cod.lower() == r_code.lower():                            global LOGIN_STATE                            LOGIN_STATE = True                            print("登陆成功")                            exit_flag = 1                        elif i_c == 2:                            exit_flag = 1                            print('验证次数超过三次,登陆退出...')                        else:                            i_c += 1                            '校验码不正确,请重新验证'                elif i_b == 2:                    exit_flag = 1                    print('尝试次数过多,退出登陆系统.')                else:                    i_b += 1                    print('密码不正确,请重新输入..')        else:            i_a += 1            print('无此账户,请确认用户名')    return LOGIN_STATE, USER_NAME@check_user_typedef search(keywords):    no_pwd_file()    res = []    search_res_list = []    user_type = None    with open('no_pwd', 'r') as f:        for line in f:            line = line.strip()            if keywords in line:                res.append(line)    if len(res) == 0:        print('通过关键字查询,无结果.')    else:        for line in res:            if line.split('|')[3] == '0':                user_type = '普通用户'            elif line.split('|')[3] == '1':                user_type = '管理员'            li = [line.split('|')[0], line.split('|')[1],                  line.split('|')[2], user_type, ]            search_res_list.append(li)        row = prettytable.PrettyTable()        row.field_names = ['用户名', '邮箱', '电话', '用户类型']        for line in search_res_list:            row.add_row([line[0], line[1], line[2], line[3], ])        print(row)    os.remove('no_pwd')@check_user_typedef update_user(account):    with open('user_info','r') as f,open('user_info_new','w') as new_f:        for line in f:            if line.strip().startswith(account) and account == line.strip().split('|')[0]:                new_line_list=line.strip().split('|')                if new_line_list[4] == '1':                    return False                else:                    new_line_list[4]='1'                    new_line='|'.join(new_line_list)                    new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return True@check_user_typedef reset_pwd(account,new_pwd):    with open('user_info','r') as f,open('user_info_new','w') as new_f:        for line in f:            if line.strip().startswith(account) and account == line.strip().split('|')[0]:                new_line_list=line.strip().split('|')                new_line_list[1]=new_pwd                new_line='|'.join(new_line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return True@check_user_typedef dele_user():    show_all_user()    name=input('输入您要删除的用户')    name_list=user_name_list()    if name in name_list:        with open('user_info','r') as f,open('user_info_new','w') as new_f:            for line in f:                if line.strip().startswith(name) and name == line.strip().split('|')[0]:                     pass                else:                    new_f.write(line)        os.rename('user_info','user_info.bak')        os.rename('user_info_new','user_info')        os.remove('user_info.bak')        print('账户%s删除完毕'%name)    else:        print('无%s的账户信息,请确认后再操作'%name)@check_user_typedef edit_user():    row=prettytable.PrettyTable()    row.field_names=['增加用户','删除用户']    row.add_row([1,2])    print(row)    while True:        inp=input('请选择功能\033[32;1m返回输入back或b\033[0m:')        if inp == '1':            res,name=regis()            if res:                print('新增用户%s'%name)                break        elif inp == '2':            dele_user()            break        elif inp == 'b' or inp == 'back':            break        else:            print('输入有误,请重新输入')def logout():    global USER_STATE,LOGIN_STATE,USER_NAME    USER_STATE, LOGIN_STATE, USER_NAME=False,False,None    exit('程序已退出！！')def show_menu():    row=prettytable.PrettyTable()    row.field_names=['查看%s账户信息'%USER_NAME,'修改%s帐户信息'%USER_NAME,                     '\033[31;1m模糊查询\033[0m','\033[31;1m查看所有用户\033[0m',                     '\033[31;1m提升指定用户为管理员\033[0m',                     '\033[31;1m重置成员密码\033[0m',                     '\033[31;1m增删成员\033[0m','退出']    row.add_row([1,2,3,4,5,6,7,'q&quit'])    print('\033[32;1m欢迎来到大牛逼CRM系统\033[0m'.center(120))    print(row)def main():    row = prettytable.PrettyTable()    row.field_names = ['功能', '登录' , '注册用户']    row.add_row(['快捷键','1','2'])    print(row)    inp = input('请输入菜单序列号:')    if inp == '1':        global LOGIN_STATE, USER_NAME        LOGIN_STATE, USER_NAME = login()        global USER_STATE        USER_STATE = check_user_state(USER_NAME)        if LOGIN_STATE:            while True:                show_menu()                inp=input('输入相应序列号,选择相应功能,'                          '\033[31;1m红色字体为管理员操作,请慎选\033[0m:')                if inp == '1':                    show_user_info(USER_NAME)                    time.sleep(1)                elif inp == '2':                    modify_user_info(USER_NAME)                    time.sleep(1)                elif inp == '4':                    show_all_user()                    time.sleep(1)                elif inp == '3':                    keywords = input('请输入您要查询的关键字')                    res = search(keywords)                    time.sleep(1)                elif inp == '5':                    res=show_all_user()                    if res:                        account=input('请输入您要提升的用户账号名称:')                        name_list=user_name_list()                        if account in name_list:                            res=update_user(account)                            if res:                                print('权限提升成功')                            else:                                print('\033[31;1m%s已经是管理员,'                                      '无需提升权限!\033[0m'%account)                            time.sleep(1)                        else:                            print('\033[31;1m无此账户:%s信息\033[0m'%account)                    else:                        pass                    time.sleep(1)                elif inp == '6':                    res=show_all_user()                    if res:                        account=input('请输入您要修改用户账号名称:')                        name_list=user_name_list()                        if account in name_list:                            new_pwd=input('请输入账户的新密码:')                            res=reset_pwd(account,new_pwd)                            if res:                                print('密码已重置成功')                        else:                            print('\033[31;1m无此账户:%s信息\033[0m'%account)                        time.sleep(1)                    else:                        pass                        time.sleep(1)                elif inp == '7':                    edit_user()                    time.sleep(1)                if inp == 'q' or inp == 'quit':                    logout()                else:                    print('输入有误,请重新输入!')        else:            exit('登陆有误,程序退出')    elif inp == '2':        res,name=regis()        if res:            print('用户%s注册成功' % name)        else:            pass    else:        exit('选择错误,程序退出')main()

Code version2：

#!/usr/bin/env python# -*-coding=utf-8-*-# Auther:ccorz Mail:ccniubi@163.com Blog:http://www.cnblogs.com/ccorz/# GitHub:https://github.com/ccorzorzimport prettytable, time, random, osUSER_STATE = FalseLOGIN_STATE=FalseUSER_NAME = Nonedef check_user_type(func):    def inner(*args, **kwargs):        if USER_STATE:            r = func(*args, **kwargs)            return r        else:            print('\033[31;1m用户%s权限不够，管理员才可使用此功能\033[0m' % USER_NAME)    return innerdef check_user_state(USER_NAME):    with open('user_info', 'r') as f:        for line in f:            line = line.strip()            if line.startswith(USER_NAME) and USER_NAME == line.split('|')[0]:                user_states = line.split('|')[4]                if user_states == '1':                    global USER_STATE                    USER_STATE = True                else:                    pass    return USER_STATEdef user_name_list():    name_list = []    with open('user_info', 'r') as f:        for line in f:            name_list.append(line.strip().split('|')[0])        return name_listdef user_pwd_list():    pwd_list = []    with open('user_info', 'r') as f:        for line in f:            pwd_list.append(line.strip().split('|')[1])        # print(pwd_list)        return pwd_listdef veri_code():    li = []    for i in range(6):        r = random.randrange(0, 5)        if r == 1 or r == 4:            num = random.randrange(0, 9)            li.append(str(num))        else:            temp = random.randrange(65, 91)            char = chr(temp)            li.append(char)    r_code = ''.join(li)    print('\033[31;1m%s\033[0m' % r_code)    return r_codedef find_user_line_list(USER_NAME):    with open('user_info','r') as f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                user_name=USER_NAME                pwd=line.strip().split('|')[1]                mail=line.strip().split('|')[2]                tel=line.strip().split('|')[3]                user_t=line.strip().split('|')[4]                line_list=[user_name,pwd,mail,tel,user_t]            else:                pass    return line_listdef change_pwd(USER_NAME):    new_pwd=input('请输入新的密码:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[1]=new_pwd                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef change_mail(USER_NAME):    new_mail=input('请输入新邮箱:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[2]=new_mail                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef change_tel(USER_NAME):    new_tel=input('请输入新的电话号码:')    with open('user_info','r') as f,open('user_info_new','w') as new_f:       for line in f:            if line.strip().startswith(USER_NAME) and USER_NAME == line.strip().split('|')[0]:                line_list=find_user_line_list(USER_NAME)                line_list[3]=new_tel                new_line='|'.join(line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return Truedef modify_user_info(USER_NAME):    row=prettytable.PrettyTable()    row.field_names=['修改密码','修改邮箱','修改联系电话']    row.add_row([1,2,3])    print(row)    while True:        inp=input('请选择功能菜单,\033[32;1m返回主菜单请输入b或者back\033[0m:')        if inp == '1':            res=change_pwd(USER_NAME)            if res:                print('密码修改成功')                break        elif inp == '2':            res=change_mail(USER_NAME)            if res:                print('邮箱修改成功')                break        elif inp == '3':            res=change_tel(USER_NAME)            if res:                print('电话修改成功')                break        elif inp == 'back' or inp == 'b':            break        else:            print('输入有误,请重新输入!')    return Truedef no_pwd_file():    with open('user_info', 'r') as f, open('no_pwd', 'w') as new_f:        for line in f:            line = line.strip().lower().split('|')            del line[1]            line = '|'.join(line)            new_f.write('%s\n' % line)@check_user_typedef show_all_user():    # print('USER_NAME:%s'%USER_NAME)    # print('USER_STATE:%s'%USER_STATE)    no_pwd_file()    row = prettytable.PrettyTable()    row.field_names = ['用户名', '密码', '邮箱', '电话', '账户类型']    with open('no_pwd','r') as f:        for line in f:            line = line.strip()            if line.split('|')[3]=='1':                user_type='管理员'            elif line.split('|')[3]=='0':                user_type='普通用户'            row.add_row([line.split('|')[0],'***',line.split('|')[1],                         line.split('|')[2],user_type])    print(row)    os.remove('no_pwd')    return Truedef show_user_info(USER_NAME):    user_info_list = []    with open('user_info', 'r') as f:        for line in f:            line = line.strip()            if line.startswith(USER_NAME) and USER_NAME == line.split('|')[0]:                user_info_list.extend(line.split('|'))        if len(user_info_list) == 0:            print('无此用户或者没有相关权限')        else:            user_type = None            if user_info_list[4] == '1':                user_type = '管理员'            elif user_info_list[4] == '0':                user_type = '普通用户'            row = prettytable.PrettyTable()            row.field_names = ['用户名', '密码', '邮箱', '电话', '账户类型']            row.add_row([user_info_list[0], '****', user_info_list[2],                         user_info_list[3], user_type])            print(row)def regis():    name_list = user_name_list()    i = 0    while i < 3:        name = input('请输入用户名:')        if name in name_list:            print('用户名%s已被注册' % name)            i += 1            return False,name        else:            pwd = input('请输入密码:')            mail = input('请输入邮箱:')            tel = input('请输入电话:')            info = [name, pwd, mail, tel, '0']            new_line = '|'.join(info)            with open('user_info', 'a') as f:                f.write('%s\n' % new_line)            break    return True,namedef login():    name_list = user_name_list()    pwd_list = user_pwd_list()    exit_flag = 0    i_a = 0    i_b = 0    i_c = 0    while i_a < 3 and exit_flag == 0:        USER_NAME= input('请输入用户名:')        if USER_NAME in name_list:            while i_b < 3 and exit_flag == 0:                pwd = input('请输入%s的密码:' % USER_NAME)                if pwd == pwd_list[name_list.index(USER_NAME)]:                    while i_c < 3 and exit_flag == 0:                        r_code = veri_code()                        c_cod = input('请输入红色字体显示的校验码:')                        if c_cod.lower() == r_code.lower():                            global LOGIN_STATE                            LOGIN_STATE = True                            print("登陆成功")                            exit_flag = 1                        elif i_c == 2:                            exit_flag = 1                            print('验证次数超过三次,登陆退出...')                        else:                            i_c += 1                            '校验码不正确,请重新验证'                elif i_b == 2:                    exit_flag = 1                    print('尝试次数过多,退出登陆系统.')                else:                    i_b += 1                    print('密码不正确,请重新输入..')        else:            i_a += 1            print('无此账户,请确认用户名')    return LOGIN_STATE, USER_NAME@check_user_typedef search(keywords):    no_pwd_file()    res = []    search_res_list = []    user_type = None    with open('no_pwd', 'r') as f:        for line in f:            line = line.strip()            if keywords in line:                res.append(line)    if len(res) == 0:        print('通过关键字查询,无结果.')    else:        for line in res:            if line.split('|')[3] == '0':                user_type = '普通用户'            elif line.split('|')[3] == '1':                user_type = '管理员'            li = [line.split('|')[0], line.split('|')[1],                  line.split('|')[2], user_type, ]            search_res_list.append(li)        row = prettytable.PrettyTable()        row.field_names = ['用户名', '邮箱', '电话', '用户类型']        for line in search_res_list:            row.add_row([line[0], line[1], line[2], line[3], ])        print(row)    os.remove('no_pwd')@check_user_typedef update_user(account):    with open('user_info','r') as f,open('user_info_new','w') as new_f:        for line in f:            if line.strip().startswith(account) and account == line.strip().split('|')[0]:                new_line_list=line.strip().split('|')                if new_line_list[4] == '1':                    return False                else:                    new_line_list[4]='1'                    new_line='|'.join(new_line_list)                    new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return True@check_user_typedef reset_pwd(account,new_pwd):    with open('user_info','r') as f,open('user_info_new','w') as new_f:        for line in f:            if line.strip().startswith(account) and account == line.strip().split('|')[0]:                new_line_list=line.strip().split('|')                new_line_list[1]=new_pwd                new_line='|'.join(new_line_list)                new_f.write('%s\n'%new_line)            else:                new_f.write(line)    os.rename('user_info','user_info.bak')    os.rename('user_info_new','user_info')    os.remove('user_info.bak')    return True@check_user_typedef dele_user():    show_all_user()    name=input('输入您要删除的用户')    name_list=user_name_list()    if name in name_list:        with open('user_info','r') as f,open('user_info_new','w') as new_f:            for line in f:                if line.strip().startswith(name) and name == line.strip().split('|')[0]:                     pass                else:                    new_f.write(line)        os.rename('user_info','user_info.bak')        os.rename('user_info_new','user_info')        os.remove('user_info.bak')        print('账户%s删除完毕'%name)    else:        print('无%s的账户信息,请确认后再操作'%name)@check_user_typedef edit_user():    row=prettytable.PrettyTable()    row.field_names=['增加用户','删除用户']    row.add_row([1,2])    print(row)    while True:        inp=input('请选择功能\033[32;1m返回输入back或b\033[0m:')        if inp == '1':            res,name=regis()            if res:                print('新增用户%s'%name)                break        elif inp == '2':            dele_user()            break        elif inp == 'b' or inp == 'back':            break        else:            print('输入有误,请重新输入')def logout():    global USER_STATE,LOGIN_STATE,USER_NAME    USER_STATE, LOGIN_STATE, USER_NAME=False,False,None    exit('程序已退出！！')def show_menu():    row=prettytable.PrettyTable()    row.field_names=['\033[31;1m模糊查询\033[0m','\033[31;1m查看所有用户\033[0m',                     '\033[31;1m提升指定用户为管理员\033[0m',                     '\033[31;1m重置成员密码\033[0m',                     '\033[31;1m增删成员\033[0m']    row.add_row([3,4,5,6,7])    # print('\033[32;1m欢迎来到大牛逼CRM系统\033[0m'.center(75))    print(row)def show_menu_2():    row=prettytable.PrettyTable()    row.field_names=['查看%s账户信息'%USER_NAME,'修改%s帐户信息'%USER_NAME,                     '\033[31;1m退出\033[0m']    row.add_row([1,2,'q&quit'])    print('\033[32;1m欢迎来到大牛逼CRM系统\033[0m'.center(50))    print(row)def main():    row = prettytable.PrettyTable()    row.field_names = ['功能', '登录' , '注册用户']    row.add_row(['快捷键','1','2'])    print(row)    inp = input('请输入菜单序列号:')    if inp == '1':        global LOGIN_STATE, USER_NAME        LOGIN_STATE, USER_NAME = login()        global USER_STATE        USER_STATE = check_user_state(USER_NAME)        print('USER_STATE:%s'%USER_STATE)        if LOGIN_STATE:            while True:                show_menu_2()                if USER_STATE:                    show_menu()                else:pass                inp=input('输入相应序列号,选择相应功能,'                          '\033[31;1m红色字体为管理员操作,请慎选\033[0m:')                if inp == '1':                    show_user_info(USER_NAME)                    time.sleep(1)                elif inp == '2':                    modify_user_info(USER_NAME)                    time.sleep(1)                elif inp == '4':                    show_all_user()                    time.sleep(1)                elif inp == '3':                    keywords = input('请输入您要查询的关键字')                    res = search(keywords)                    time.sleep(1)                elif inp == '5':                    res=show_all_user()                    if res:                        account=input('请输入您要提升的用户账号名称:')                        name_list=user_name_list()                        if account in name_list:                            res=update_user(account)                            if res:                                print('权限提升成功')                            else:                                print('\033[31;1m%s已经是管理员,'                                      '无需提升权限!\033[0m'%account)                            time.sleep(1)                        else:                            print('\033[31;1m无此账户:%s信息\033[0m'%account)                    else:                        pass                    time.sleep(1)                elif inp == '6':                    res=show_all_user()                    if res:                        account=input('请输入您要修改用户账号名称:')                        name_list=user_name_list()                        if account in name_list:                            new_pwd=input('请输入账户的新密码:')                            res=reset_pwd(account,new_pwd)                            if res:                                print('密码已重置成功')                        else:                            print('\033[31;1m无此账户:%s信息\033[0m'%account)                        time.sleep(1)                    else:                        pass                        time.sleep(1)                elif inp == '7':                    edit_user()                    time.sleep(1)                elif inp == 'q' or inp == 'quit':                    logout()                else:                    print('输入有误,请重新输入!')        else:            exit('登陆有误,程序退出')    elif inp == '2':        res,name=regis()        if res:            print('用户%s注册成功' % name)        else:            pass    else:        exit('选择错误,程序退出')main()