利用Python发送邮件或发带附件的邮件

利用Python发送邮件或带附件的邮件的攻略如下：

一、Python发送邮件的基本步骤

1. 导入smtplib和email模块

import smtplib
from email.mime.text import MIMEText

2. 连接SMTP服务器

mail_host = "smtp.xxx.com"
mail_port = 25
mail_user = "your_username"
mail_password = "your_password"
smtp_obj = smtplib.SMTP(mail_host, mail_port)
smtp_obj.login(mail_user, mail_password)

3. 创建邮件信息

sender = "sender_email_address"
receiver = "receiver_email_address"
subject = "邮件主题"
content = "邮件内容"
message = MIMEText(content, "plain", "utf-8")
message["Subject"] = subject
message["From"] = sender
message["To"] = receiver

4. 发送邮件

smtp_obj.sendmail(sender, receiver, message.as_string())

5. 关闭连接

smtp_obj.quit()

二、Python发送带附件的邮件

1. 导入email模块中的MIMEMultipart、MIMEApplication和encoders类

from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from email import encoders

2. 创建邮件信息

sender = "sender_email_address"
receiver = "receiver_email_address"
subject = "邮件主题"
content = "邮件内容"
file_path = "附件文件路径"
message = MIMEMultipart()
message["Subject"] = subject
message["From"] = sender
message["To"] = receiver
text = MIMEText(content, "plain", "utf-8")
message.attach(text)
with open(file_path, "rb") as f:
    attachment = MIMEApplication(f.read(), Name="附件")
    encoders.encode_base64(attachment)
    attachment.add_header("Content-Disposition", "attachment", filename="附件")
    message.attach(attachment)

3. 发送邮件

smtp_obj.sendmail(sender, receiver, message.as_string())

4. 关闭连接

smtp_obj.quit()

以上是发送邮件或带附件的邮件的Python代码攻略，下面是两个示例说明：

示例一：发送简单邮件

import smtplib
from email.mime.text import MIMEText

mail_host = "smtp.xxx.com"
mail_port = 25
mail_user = "your_username"
mail_password = "your_password"
sender = "sender_email_address"
receiver = "receiver_email_address"
subject = "这是一封测试邮件"
content = "邮件发送测试成功！"
message = MIMEText(content, "plain", "utf-8")
message["Subject"] = subject
message["From"] = sender
message["To"] = receiver

smtp_obj = smtplib.SMTP(mail_host, mail_port)
smtp_obj.login(mail_user, mail_password)
smtp_obj.sendmail(sender, receiver, message.as_string())
smtp_obj.quit()

print("邮件发送成功！")

示例二：发送带附件的邮件

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.application import MIMEApplication
from email import encoders

mail_host = "smtp.xxx.com"
mail_port = 25
mail_user = "your_username"
mail_password = "your_password"
sender = "sender_email_address"
receiver = "receiver_email_address"
subject = "这是一封测试邮件"
content = "邮件发送测试成功！"
file_path = "/path/to/attachment"
message = MIMEMultipart()
message["Subject"] = subject
message["From"] = sender
message["To"] = receiver
text = MIMEText(content, "plain", "utf-8")
message.attach(text)
with open(file_path, "rb") as f:
    attachment = MIMEApplication(f.read(), Name="附件")
    encoders.encode_base64(attachment)
    attachment.add_header("Content-Disposition", "attachment", filename="附件")
    message.attach(attachment)

smtp_obj = smtplib.SMTP(mail_host, mail_port)
smtp_obj.login(mail_user, mail_password)
smtp_obj.sendmail(sender, receiver, message.as_string())
smtp_obj.quit()

print("邮件发送成功！")

以上就是Python发送邮件或发带附件的邮件的攻略及两个示例说明，希望能够帮助到你。