脚本内容如下

import os
import time
import smtplib
from email.mime.text import MIMEText

# 设置要监控的目录路径
MONITOR_DIR = '/path/to/monitor/dir'

# 设置发送邮件的参数
SENDER = 'your_email@example.com'
RECIPIENT = 'recipient@example.com'
SMTP_SERVER = 'smtp.example.com'
SMTP_PORT = 587
SMTP_USERNAME = 'your_username'
SMTP_PASSWORD = 'your_password'

def get_dir_size(dir_path):
    """获取目录大小(以字节为单位)"""
    total_size = 0
    for dirpath, dirnames, filenames in os.walk(dir_path):
        for f in filenames:
            fp = os.path.join(dirpath, f)
            total_size += os.path.getsize(fp)
    return total_size

def send_notification(old_size, new_size):
    """发送目录大小变化通知邮件"""
    subject = '目录大小变化通知'
    body = f'监控目录 {MONITOR_DIR} 的大小已发生变化:\n'
    body += f'旧大小: {old_size} 字节\n'
    body += f'新大小: {new_size} 字节'
    msg = MIMEText(body)
    msg['Subject'] = subject
    msg['From'] = SENDER
    msg['To'] = RECIPIENT

    with smtplib.SMTP(SMTP_SERVER, SMTP_PORT) as server:
        server.starttls()
        server.login(SMTP_USERNAME, SMTP_PASSWORD)
        server.send_message(msg)

def monitor_dir_size():
    """监控目录大小变化"""
    old_size = get_dir_size(MONITOR_DIR)
    while True:
        time.sleep(3600)  # 每隔1小时检查一次
        new_size = get_dir_size(MONITOR_DIR)
        if new_size != old_size:
            send_notification(old_size, new_size)
            old_size = new_size

if __name__ == '__main__':
    monitor_dir_size()