如何在Python中使用email.mime.text发送中文邮件的附件

在Python中使用email.mime.text模块发送带有中文附件的邮件可以通过以下步骤完成：

1. 导入所需的模块：

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header

2. 设置发件人、收件人和邮件主题：

sender = 'sender@example.com'
receiver = 'receiver@example.com'
subject = '中文邮件附件示例'

3. 创建一个MIMEMultipart对象来包含邮件内容和附件：

message = MIMEMultipart()
message['From'] = Header('发件人姓名', 'utf-8')
message['To'] =  Header('收件人姓名', 'utf-8')
message['Subject'] = Header(subject, 'utf-8')

4. 添加邮件正文：

message.attach(MIMEText('这是一封带有中文附件的邮件示例', 'plain', 'utf-8'))

5. 添加附件到邮件：

attachment = MIMEText(open('附件文件.txt', 'rb').read(), 'base64', 'utf-8')
attachment["Content-Type"] = 'application/octet-stream'
attachment["Content-Disposition"] = 'attachment; filename="中文附件.txt"'
message.attach(attachment)

6. 发送邮件：

try:
    smtpObj = smtplib.SMTP()
    smtpObj.connect('smtp.example.com', 25)
    smtpObj.login('username', 'password')
    smtpObj.sendmail(sender, receiver, message.as_string())
    smtpObj.quit()
    print("邮件发送成功")
except smtplib.SMTPException:
    print("Error：无法发送邮件")

完整的使用例子如下：

import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart
from email.header import Header

sender = 'sender@example.com'
receiver = 'receiver@example.com'
subject = '中文邮件附件示例'

message = MIMEMultipart()
message['From'] = Header('发件人姓名', 'utf-8')
message['To'] =  Header('收件人姓名', 'utf-8')
message['Subject'] = Header(subject, 'utf-8')

message.attach(MIMEText('这是一封带有中文附件的邮件示例', 'plain', 'utf-8'))

attachment = MIMEText(open('附件文件.txt', 'rb').read(), 'base64', 'utf-8')
attachment["Content-Type"] = 'application/octet-stream'
attachment["Content-Disposition"] = 'attachment; filename="中文附件.txt"'
message.attach(attachment)

try:
    smtpObj = smtplib.SMTP()
    smtpObj.connect('smtp.example.com', 25)
    smtpObj.login('username', 'password')
    smtpObj.sendmail(sender, receiver, message.as_string())
    smtpObj.quit()
    print("邮件发送成功")
except smtplib.SMTPException:
    print("Error：无法发送邮件")

确保将示例中的发件人、收件人、附件文件、SMTP服务器和登录凭据替换为实际的值。