import os

from PIL import Image

def validate_attachment(file_path):

if not os.path.exists(file_path):

return "文件不存在，请重新上传"

try:

img = Image.open(file_path)

img.verify()

return "文件格式正确"

排课管理系统源码

except Exception as e:

return f"文件格式错误: {e}"

# 示例调用

result = validate_attachment("student_doc/attachment.jpg")

print(result)

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import smtplib

from email.mime.text import MIMEText

def send_email(subject, body, to_email):

sender_email = "your_email@example.com"

password = "your_password"

message = MIMEText(body)

message['Subject'] = subject

message['From'] = sender_email

message['To'] = to_email

try:

with smtplib.SMTP_SSL('smtp.example.com', 465) as server:

server.login(sender_email, password)

server.sendmail(sender_email, to_email, message.as_string())

return "邮件发送成功"

except Exception as e:

return f"邮件发送失败: {e}"

# 示例调用

result = send_email("请假申请通知", "学生已提交请假申请，请审核！", "counselor@example.com")

print(result)

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