具体代码如下：

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from django.template import loader
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.header import Header
import smtplib
import traceback


class SendEmail(object):
    """
    发送html邮件
    """
    def __init__(self, mail_host, mail_port, mail_user, mail_pass, sender, to_list_email):
        # 创建邮件对象
        self.msg = MIMEMultipart()
        # 邮箱服务地址
        self.mail_host = mail_host
        # 邮箱端口号
        self.mail_port = mail_port
        # 邮箱账号
        self.mail_user = mail_user
        # 密码
        self.mail_pass = mail_pass
        # 发送人
        self.sender = sender
        # 收件人邮箱列表
        self.to_list_email = to_list_email

    def make_html(self, base_html_path, **kwargs):
        """

        :param base_html_path: html模板文件路径
        :param **kwargs: 模板中的参数
        :return:
        """
        mail_html = loader.render_to_string(
            template_name=base_html_path,
            context={
                # "id": tid,
                **kwargs   # 传入模板文件的数据
            }
        )
        return mail_html

    def add_attachment(self, file_path):
        """
        制作附件
        :param file_path:
        :return:
        """
        with open(file_path, 'rb') as f:
            content = f.read()
        att = MIMEText(content, _subtype='plain', _charset='utf-8')
        att["Content-Type"] = 'application/octet-stream'
        att["Content-Disposition"] = 'attachment; filename=task_report.docx'
        att.add_header("Content-Disposition", "attachment", filename=("gbk", "", "{}".format(filename)))  # 如果文件名中有中文的话需设置
        return att

    def send_html_email(self, base_html_path, subject, str_to, str_cc, file_path, **kwargs):
        """

        :param html: html文件对象
        :param subject: 邮件主题
        :return:
        """
        html = self.make_html(base_html_path, **kwargs)
        self.msg.attach(MIMEText(str(html), 'html'))
        self.msg['from'] = Header('安全测试平台', 'utf-8')
        self.msg['Subject'] = Header(subject, 'utf-8')
        self.msg["Accept-Language"] = "zh-CN"
        self.msg["Accept-Charset"] = "ISO-8859-1,utf-8"
        self.msg['to'] = str_to  # 发送人   str
        self.msg['cc'] = str_cc  # 抄送人   str
        # 添加附件
        att = self.add_attachment(file_path)
        self.msg.attach(att)
        # 发送邮件
        try:
            server = smtplib.SMTP()
            server.connect(self.mail_host, self.mail_port)
            server.login(self.mail_user, self.mail_pass)
            server.sendmail(self.sender, self.to_list_email, self.msg.as_string())
            server.quit()
        except Exception:
            print(traceback.format_exc())