# -*- coding: utf-8 -*-
# @Author: wangkun
# @Time: 2023/2/10
import time


class Demo:
    @classmethod
    def test_time(cls):
        time_str = '2023-02-07'
        time_stamp = int(time.mktime(time.strptime(time_str, "%Y-%m-%d")))
        print(time_stamp)


if __name__ == "__main__":
    Demo.test_time()