任務描述：
       1.實現登入、註冊、退出。

       2.檔案操作，實現增刪改查。

       3.必要的容錯處理。

##
# @file book_system.py
# @brief 
# @author SongQiang
# @version 1.0
# @date 2018-12-25

import login_register

def start_page():
    print('++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++')
    print(' ' * 27 + '1.登   錄')
    print(' ' * 27 + '2.注   冊')
    print(' ' * 27 + '3.退   出')
    print('++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++')
def verfication():
    while True:
        start_page()
        user_input=input("請輸入你想選擇的功能")
        if user_input.isdigit():
            if user_input=='1':
                login_register.login()
            elif user_input=='2':
                login_register.register()
            elif user_input=='3':
                exit(0)
            else:
                print("沒有此功能，請重新輸入")
                verfication()
        else:
            print("請輸入正確的數字")
            verfication()
        
def main_system():
    verfication()

if __name__=='__main__':
    main_system()


 

##
# @file login_register.py
# @brief 
# @author SongQiang
# @version 1.0
# @date 2019-01-02

import book_system
import os
import file_operation
def file_exit():
    #獲取當前目錄
    path=os.getcwd()
    if os.path.exists('%s/admin.txt'%path):
        pass
    else:
        with open('./admin.txt','w') as f:
            print('使用者不存在，請註冊')
            register()

def register():
    file_exit()
    user_name=input("請輸入你的姓名")
    if not user_name:
        print("姓名不能為空，請重新輸入")
        register()
   
    if file_operation.user_repetition(user_name):
        print("使用者已經存在，請重新輸入")
        book_system.main_system()
    else:
        user_pass1=input("請輸入密碼：")
        user_pass2=input("請重新輸入密碼")
        if user_pass1 !=user_pass2:
            print('兩次密碼不一致，請重新輸入！！！')
            register()
        elif len(user_pass1)<3:
            print('密碼長度過低，請至少輸入3位密碼')
            register()
        else:
            print("註冊成功")
            path1='./%s.txt'%user_name
            with open(path1,'w') as f:
                print('建立管理檔案成功')
            file_operation.add_admin(user_name,user_pass1)
def login():
    file_exit()
    user_name=input('請輸入使用者名稱')
    user_pass=input('請輸入密碼')
    file_operation.login_check(user_name,user_pass)

 

##
# @file file_operation.py
# @brief 
# @author SongQiang
# @version 1.0
# @date 2019-01-02
import book_system
import login_register
import operation

def add_id(filename):
    #將資料儲存到列表裡
    path='./%s.txt'%filename
    id_list=[]
    with open(path,'r',encoding='utf-8') as f:
        while True:
            #擷取左邊的空格或指定字元
            a=f.readline().lstrip()
            #print(len(a))
            if not a:
                break
            else:
                m=a.strip(',').strip().split(',')
                id_list.append(m[0])
    return (len(id_list)+1)

def add_student(admin,name,sex,hoby,tel):
    path='./%s.txt'%admin
    #自動編號
    id =str(add_id(admin))
    str1 ='%s,%s,%s,%s,%s'%(id,name,sex,hoby,tel)
    with open(path,'a') as f:
        f.write(str1+'\n')
    print('新增完成')
    #開始選擇
    up_down(admin)

def up_down(admin):
    print(' '*27+'1.返回上一層')
    print(' '*27+'2.退出重新登入')
    print(' '*27+'3.退出程式')
    user_input=input('請輸入你的選擇： ')
    if user_input.isdigit():
        if user_input=='1':
            operation.choose_operation(admin)
        elif user_input=='2':
            book_system.verfication()
        elif user_input=='3':
            exit(0)
        else:
            print('沒有此功能')
            up_down(admin)
    else:
        print("請輸入正確的數字")
        up_down(admin)

def all_info(filename):
    path='./%s.txt'%filename
    with open(path,'r',encoding='utf-8') as f:
        while True:
            a=f.readline()
            if not a:
                break
            m=a.strip(',').strip().split(',')
            if len(m)==17:
                continue
            print('學號：%s 姓名：%s 性別：%s  愛好：%s 電話：%s'%(m[0],m[1],m[2],m[3],m[4]))

    up_down(filename)
def select_one_info(filename,info):
    path='./%s.txt'%filename
    with open(path,'r',encoding='utf-8') as f:
        while True:
            a=f.readline()
            if not a:
                break
            m=a.strip(',').strip().split(',')
            if info.isdigit():
                if m[0]==info:
                    print('學號：%s 姓名：%s 性別：%s  愛好：%s 電話：%s'%(m[0],m[1],m[2],m[3],m[4]))
            elif info.isalpha():
                if m[1]==info:
                    print('學號：%s 姓名：%s 性別：%s  愛好：%s 電話：%s'%(m[0],m[1],m[2],m[3],m[4]))
            else:
                print('請輸入正確的查詢內容，id或者姓名')
                select_one_info(filename,info)
    up_down(filename)

def delete_info(id,admin):
    info_list=[]
    path='./%s.txt'%admin
    with open(path,'r',encoding='utf-8') as f:
        while True:
            a=f.readline()
            m=a.strip().split(',')
            if not a:
                break
            else:
                if m[0]==id:
                   info_list.append('delete one person')
                   #pass
                else:
                    info_list.append(m)
    with open(path,'w') as f:
        for x in info_list:
            f.write(','.join(x)+'\n')
    up_down(admin)

def update_info(filename,id,user_choose,user_update):
    info_list=[]
    path='./%s.txt'%filename
    with open(path,'r',encoding='utf-8') as f:
        while True:
            a=f.readline()
            m=a.strip().split(',')
            if not a:
                break
            else:
                if m[0]==id:
                    m[int(user_choose)]=user_update
                    info_list.append(m)
                else:
                    info_list.append(m)
    with open(path,'w') as f:
        for x in info_list:
            f.write(','.join(x)+'\n')
    up_down(filename)

def add_admin(username,userpass):
    with open('./admin.txt','a') as f:
        f.write('%s,%s\n'%(username,userpass))
    book_system.main_system()

def login_check(username,userpass):
    with open('./admin.txt','r',encoding='utf-8') as f:
        while True:
            #擷取字串左邊的空格
            a=f.readline().lstrip()
            #判斷是否為空
            if not a:
                break
            #strip() 不帶引數 預設清除兩邊的空白符 /n /r /t ' '
            #帶引數 刪除字串最開頭和最結尾包含的字元
            #print(a)
            m=a.strip(',').strip().split(',')
            if m[0]==username and m[1]==userpass:
                print('登陸成功')
                operation.choose_operation(username) 
                break
            elif m[0]==username and m[1]!=userpass:
                print('密碼錯誤請重新輸入')
           # else:
               # print('使用者不存在')
                #login_register.login()

def user_repetition(user):
    with open('./admin.txt','r',encoding='utf-8') as f:
        while True:
            a=f.readline()
            if not a:
                break
            m=a.strip(',').strip().split(',')
            #print(m[0])
            if m[0]==user:
                return True
            else:
                return False
 

##
# @file operation.py
# @brief 
# @author SongQiang
# @version 1.0
# @date 2019-01-02
import file_operation
import book_system

#增
def add_info(filename):
    user_name=input('XX姓名:')
    user_sex=input('性別:')
    user_hoby=input('愛好:')
    user_tel=input('電話:')
    file_operation.add_student(filename,user_name,user_sex,user_hoby,user_tel)

#查詢
def select_info(filename):
    user_input=input('1---查詢全部資訊   2---查詢部分資訊')
    if user_input.isdigit():
        if user_input=='1':
            file_operation.all_info(filename)
        elif user_input=='2':
            user_input=input('請輸入姓名或者id:')
            file_operation.select_one_info(filename,user_input)
        else:
            print('無此功能')
            select_info(filename)
    else:
        print('請輸入正確的整數')
#刪除
def dele_info(filename):
    user_input=input('請輸入id,忘記請輸入f:')
    if user_input=='f':
        select_info(filename)
    elif user_input.isdigit():
        file_operation.delete_info(user_input,filename)
    else:
        print('輸入錯誤請重新輸入')
        dele_info(filename)

#改
def update_info(filename):
    user_input=input('請輸入你的id,如果忘記id,請輸入f:')
    if user_input=='f':
        select_info(filename)
    else:
        user_choose=input('請輸入想修改的選項：1.姓名 2.性別 3.愛好 4.電話：')
        use_update=input('請輸入修改的內容:')
        file_operation.update_info(filename,user_input,user_choose,use_update)

def choose_operation(admin):
    print(' '*27+'1.新增XX')
    print(' '*27+'2.刪除XX')
    print(' '*27+'3.檢視XX')
    print(' '*27+'4.修改XX')
    print(' '*27+'5.退出')
    print(' '*27+'6.重新登陸')
    
    while True:
        user_input=input("請輸入你的操作")
        if user_input.isdigit():
            if user_input=='1':
                add_info(admin)
            elif user_input=='2':
                dele_info(admin)
            elif user_input=='3':
                select_info(admin)
            elif user_input=='4':
                update_info(admin)
            elif user_input=='5':
                exit(0)
            elif user_input=='6':
                book_system.verfication()
                break
            else:
                print('無此功能，請重新輸入')
        else:
            print("請輸入正確的數字")