students_info = [[‘egon‘, 18, [‘play‘, ]], [‘alex‘, 18, [‘play‘, ‘sleep‘]]]
print(students_info[0][2][0])

info = {
    ‘name‘: ‘egon‘,
    ‘hobbies‘: [‘play‘, ‘sleep‘],
    ‘company_info‘: {
        ‘name‘: ‘Old boy‘,
        ‘type‘: ‘education‘,
        ‘emp_num‘: 40,
    }
}
#  请取出取公司名:
print(info[‘company_info‘][‘name‘])

students = [
    {‘name‘: ‘alex‘, ‘age‘: 38, ‘hobbies‘: [‘play‘, ‘sleep‘]},
    {‘name‘: ‘egon‘, ‘age‘: 18, ‘hobbies‘: [‘read‘, ‘sleep‘]},
    {‘name‘: ‘wupeiqi‘, ‘age‘: 58, ‘hobbies‘: [‘music‘, ‘read‘, ‘sleep‘]},
]

print(students[1][‘hobbies‘][1])

while True:
    account = input(‘your account:‘)
    password = input(‘your password‘)
    if account == ‘Avery‘:
        if password == ‘369‘:
            print(‘登陆成功‘)
            exit()
        else:
            print(‘密码输入错误，请重新输入‘)
            continue
    else:
        print(‘账号输入错误，请重新输入‘)

account_dic = {
    ‘Avery‘: ‘369‘,
    ‘Kaia‘: ‘123‘
}
while True:
    account = input(‘your account:‘)
    password = input(‘your password‘)
    if account in account_dic:
        if password == account_dic[account]:
            print(‘登陆成功‘)
            exit()
        else:
            print(‘密码输入错误，请重新输入‘)
            continue
    else:
        print(‘账号输入错误，请重新输入‘)