面向过程的定义

'''
面向过程，核心是过程二字，过程值得是解决问题的步骤，设计一条流水线，机械式的思维方式
优点：复杂的问题流程化，进而简单化
缺点：可拓展性差
'''

import json
import re

def interactive():
    name = input(">>>>").strip()
    pwd = input(">>>>").strip()
    email = input(">>>").strip()
    return{
    'name':name,
    'pwd':pwd,
    'email':email
    }


def check(user_info):
    is_valid = True
    if len(user_info['name']) == 0:
        print("用户名不能为空")
        is_valid = False

    if len(user_info['pwd']) < 6:
        print("密码不能少于6位")
        is_valid = False

    if re.search(r'@.*?\.(com|cn)$',user_info['email']):
        print("邮箱格式不合规范")
        is_valid = False

    return {
        'is_valid':is_valid,
        'user_info':user_info
    }


def register(check_info):
    if check_info['is_valid']:
        with open('db_json','w',encoding='utf-8') as f:
            json.dump(check_info['user_info'],f)


def main():
    userinfo=interactive()
    check_info = check(userinfo)
    register(check_info)


if __name__ == "__main__":
    main()