def stu_management_login_interface():
    page = """===================================
    ??歡迎進(jìn)入學(xué)生管理登錄界面

        ?   1.  登錄
        ?   2.  注冊
        ?   3.  返回

    ===================================
    """
    page1 = """=========================
        ??歡迎yanghai

            ? 1.  查看用戶
            ? 2.  刪除用戶
            ? 3.  返回

    =========================
    """
    page2 = """=========================
            ??歡迎yanghai

                ? 1.  進(jìn)入用戶管理系統(tǒng)
                ? 2.  進(jìn)入學(xué)生管理系統(tǒng)
                ? 3.  返回

        =========================
        """
    num0 = 0

    def register():
        with open('用戶信息.txt', encoding='utf-8') as ff:
            content = ff.read()
        name_value = input('請輸入姓名：')
        phone_value = input('請輸入電話：')
        while True:
            account_number = input('請輸入賬號(hào)(3-6位)：')
            if 3 <= len(account_number) <= 6:
                break
            else:
                print('賬號(hào)位數(shù)不對(duì)读跷，請重新輸入老赤！')
        if content:
            list1 = content.splitlines()
            for x in list1:
                if '賬號(hào)：' + account_number not in x.split(' '):
                    if x == list1[-1]:
                        print('賬號(hào)可使用侧馅，請繼續(xù)惶岭！')
                        while True:
                            password = input('請輸入密碼(6-12位)：')
                            if 6 <= len(password) <= 12:
                                break
                            else:
                                print('密碼位數(shù)不對(duì),請重新輸入!')
                        str1 = '姓名：' + name_value + ' ' + '電話：' + phone_value + ' ' + \
                               '賬號(hào)：' + account_number + ' ' + '密碼：' + password + '\n'
                        with open('用戶信息.txt', 'a', encoding='utf-8') as f:
                            f.write(str1)
                else:
                    print('賬號(hào)已存在,請重新注冊！')
                    break
        else:
            while True:
                password = input('請輸入密碼：')
                if 6 <= len(password) <= 12:
                    print('密碼符合要求渗磅，注冊成功嚷硫！')
                    break
                else:
                    print('密碼位數(shù)不對(duì),請重新輸入!')
            str1 = '姓名：' + name_value + ' ' + '電話：' + phone_value + ' ' + \
                   '賬號(hào)：' + account_number + ' ' + '密碼：' + password + '\n'
            with open('用戶信息.txt', 'a', encoding='utf-8') as f:
                f.write(str1)

    def login_system():
        with open('用戶信息.txt', encoding='utf-8') as ff:
            content = ff.read()
        account_number = input('請輸入賬號(hào)：')
        for x in content.splitlines():
            if account_number == 'q1006895418':
                password = input('請輸入密碼：')
                while password == '123456':
                    print('密碼正確!')
                    print(page2)
                    num4 = input('請選擇(1-3):')
                    while num4 == '1':
                        print(page1)
                        num5 = input('請選擇(1-3):')
                        if num5 == '1':
                            find_all_user()
                        if num5 == '2':
                            del_user()
                        if num5 == '3':
                            break
                    if num4 == '2':
                        stu_management_system()
                    if num4 == '3':
                        break
                break
            else:
                if '賬號(hào)：' + account_number in x.split(' '):
                    print('賬號(hào)存在，請繼續(xù)始鱼！')
                    password = input('請輸入密碼：')
                    if '密碼：' + password in x.split(' '):
                        print('密碼正確仔掸，正在進(jìn)入系統(tǒng)，請稍等医清！')
                        stu_management_system()

    def find_all_user():
        with open('用戶信息.txt', encoding='utf-8') as ff:
            content = ff.read()
        for x in content.splitlines():
            print(x)
        print('查找成功起暮！')

    def del_user():
        with open('用戶信息.txt', encoding='utf-8') as ff:
            content = ff.read()
        account_number = input('請輸入賬號(hào):')
        for x in content.splitlines():
            if account_number != 'q1006895418':
                if '賬號(hào)：'+account_number in x.split(' '):
                    print(x)
                    print('1.確定刪除')
                    print('2.返回')
                    num = input('請選擇(1-2):')
                    if num == '1':
                        with open('用戶信息.txt', 'w', encoding='utf-8') as f1:
                            f1.write(content.replace(x, '', 1))
                            f1.close()
                        print('刪除成功！')
            else:
                print('不能刪除管理者会烙！')

    def stu_management_system():
        page3 = """=========================
            ??歡迎yanghai

                ? 1.  添加學(xué)生
                ? 2.  查看學(xué)生
                ? 3.  修改學(xué)生信息
                ? 4.  刪除學(xué)生
                ? 5.  返回
        =========================
        """
        page4 = """
            1.查看所有學(xué)生
            2.按姓名查找
            3.按學(xué)號(hào)查找
            4.返回
        """
        num = 0

        def add_student_information():
            name_value = input('請輸入姓名：')
            age_value = input('請輸入年齡：')
            phone_value = input('請輸入電話：')
            with open('學(xué)號(hào)生成.txt', encoding='utf-8') as f1:
                count = int(f1.read())
            count += 1
            stu_number = str(count)
            str_stu_number = stu_number.rjust(4, '0')
            str1 = '學(xué)號(hào)：'+str_stu_number+' '+'姓名：'+name_value+' '+\
                   '年齡：'+age_value+' '+'電話：'+phone_value+'\n'
            with open('學(xué)生信息.txt', 'a', encoding='utf-8') as ff:
                ff.write(str1)
            with open('學(xué)號(hào)生成.txt', 'w') as f2:
                f2.write(stu_number)
            print('添加成功负懦！')
            print('1.繼續(xù)')
            print('2.返回')

        def find_all_student():
            with open('學(xué)生信息.txt', encoding='utf-8') as f:
                content = f.read()
            for x in content.splitlines():
                print(x)
            print('查找成功筒捺！')

        def find_by_name():
            with open('學(xué)生信息.txt', encoding='utf-8') as f:
                content = f.read()
            name = input('請輸入姓名：')
            for x in content.splitlines():
                if '姓名：'+name in x.split(' '):
                    print(x)
                    print('查找成功！')

        def find_by_student_number():
            with open('學(xué)生信息.txt', encoding='utf-8') as f:
                content = f.read()
            student_number = input('請輸入學(xué)號(hào)：')
            for x in content.splitlines():
                if '學(xué)號(hào)：'+student_number in x.split(' '):
                    print(x)
            print('查找成功纸厉！')

        def revise_stu_information():
            with open('學(xué)生信息.txt', encoding='utf-8') as f:
                content = f.read()
            name_value = input('請輸入姓名：')
            age_value = input('請輸入年齡：')
            phone_value = input('請輸入電話：')
            stu_number = input('請輸入學(xué)號(hào):')
            for x in content.splitlines():
                if '學(xué)號(hào)：'+stu_number in x.split(' '):
                    str1 = '學(xué)號(hào)：'+stu_number+' '+'姓名：'+name_value+' ' +\
                            '年齡：'+age_value+' '+'電話：'+phone_value
                    with open('學(xué)生信息.txt', 'w', encoding='utf-8') as f1:
                        f1.write(content.replace(x, str1))
                    print('修改成功系吭！')
                    print('1.繼續(xù)')
                    print('2.返回')
                    break
            else:
                print('學(xué)號(hào)不正確')

        def del_stu_information():
            with open('學(xué)生信息.txt', encoding='utf-8') as f:
                content = f.read()
            name = input('請輸入姓名：')
            count = 0
            list1 = []
            for x in content.splitlines():
                if '姓名：'+name in x.split(' '):
                    list1.append(x)
                    count += 1
            if count >= 1:
                for y in range(len(list1)):
                    print(y, list1[y])
                num1 = int(input('請選擇:'))
                with open('學(xué)生信息.txt', 'w', encoding='utf-8') as f1:
                    f1.write(content.replace(list1[num1], ''))
                print('刪除成功！')
            else:
                print('沒有該學(xué)生颗品！')

        while num == 0:
            print(page3)
            num7 = int(input('請選擇（1-5）：'))
            while num7 == 1:
                add_student_information()
                num8 = int(input('請選擇（1-2）：'))
                if num8 == 2:
                    break
            while num7 == 2:
                print(page4)
                num2 = int(input('請選擇（1-4）：'))
                if num2 == 1:
                    find_all_student()
                if num2 == 2:
                    find_by_name()
                if num2 == 3:
                    find_by_student_number()
                if num2 == 4:
                    break
            while num7 == 3:
                revise_stu_information()
                num3 = int(input('請選擇（1-2）：'))
                if num3 == 2:
                    break
            if num7 == 4:
                del_stu_information()
            if num7 == 5:
                print('成功退出學(xué)生管理系統(tǒng)肯尺！')
                num = 'end!'
    while num0 == 0:
        print(page)
        num6 = input('請選擇(1-3):')
        if num6 == '1':
            login_system()
        elif num6 == '2':
            register()
        else:
            print('成功退出登錄界面！')
            break


stu_management_login_interface()