参照 原文

增加了在指定时间判断网络是否连接，只要是在指定时间联网就可以发送邮件，超过指定时间不发送邮件。
具体代码如下：
发送邮箱配置：参见smtplib +email 发送邮件，qq

1 脚本

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import smtplib
from email.mime.text import MIMEText
import datetime
import requests
import time


def sendmail(subject,content):
    email_host = 'smtp.qq.com' #可更改为其他邮箱
    email_user = '更改为发件人qq邮箱或其他邮箱，@qq.com'
    email_pwd = '发送qq邮箱的授权码'   
    maillist = '收件人邮箱'
    me = email_user
    #content = "this is a test"
    
    msg = MIMEText(content,'plain','utf-8')
    msg['Subject'] = subject
    msg['From'] = me
    msg['To'] = maillist
    
    smtp = smtplib.SMTP(email_host)
    smtp.login(email_user,email_pwd)
    smtp.sendmail(me,maillist,msg.as_string())
    smtp.quit()
    #print("email send success")
    
    

def isConnected():
    """规定时间确定网络是否连接,6mins"""
    while True:
        for i in range(120):  
            try:
                html = requests.get('https://www.baidu.com',timeout=2)
            except:
                #return i 
                time.sleep(3)
            else:
               # print("联网成功")
               # print(str(i))
                return True 
                break
        
        if i == 1:
            return False
            
    
if __name__ == '__main__':
    if isConnected():
        try:
            aa = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
            content = '您的计算机已开机，开机时间约为: {}'.format(aa)
            subject = "计算机已开机"
            sendmail(subject=subject,content=content)
        except Exception as e:
            print(str(e))
    else:
        pass
    

2 将脚本打包成exe文件 并将文件快捷方式放入开机目录文件夹

设置开机启动参照 设置程序开机启动

pyinstaller kdji.py --noconsole #不显示窗口