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@@ -1,80 +1,35 @@
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-# -*- coding:utf-8 -*-
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-import smtplib
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-import email
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-from email.mime.multipart import MIMEMultipart
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-from email.mime.text import MIMEText
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-from email.mime.image import MIMEImage
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-from email.mime.base import MIMEBase
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-from email.mime.application import MIMEApplication
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-from email.header import Header
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-# 发件人地址，通过控制台创建的发件人地址
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-username = 'message@dvema.com'
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-# 发件人密码，通过控制台创建的发件人密码
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-password = 'SMtp123456'
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-# 自定义的回复地址
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-replyto = '***'
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-# 收件人地址或是地址列表，支持多个收件人，最多30个
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-#rcptto = '***,***'
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-# rcptto = '1758730877@qq.com'
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-rcptto = 'cjk1758730877@gmail.com'
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-# 构建alternative结构
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-msg = MIMEMultipart('alternative')
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-msg['Subject'] = Header('自定义信件主题').encode()
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-msg['From'] = '%s <%s>' % (Header('自定义发信昵称').encode(), username)
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-# msg['To'] = rcptto
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-msg['Reply-to'] = replyto
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-msg['Message-id'] = email.utils.make_msgid()
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-msg['Date'] = email.utils.formatdate()
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-# 构建alternative的text/plain部分
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-# textplain = MIMEText('自定义TEXT纯文本部分', _subtype='plain', _charset='UTF-8')
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-# msg.attach(textplain)
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-# 构建alternative的text/html部分
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-sendHtml = '''
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-<!DOCTYPE html>
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-<html lang="en">
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-<head>
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- <meta charset="UTF-8">
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- <title>Title</title>
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-</head>
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-<body>
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-<div class="content"
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- style="overflow: hidden;padding:30px 10% 70px 10%;margin:0 10%;background-color: #fff;box-shadow:0 4px 20px rgba(0,0,0,0.1);word-break: break-all;">
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- <h2 style="margin: 30px 0;">Hello, {username}</h2>
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- <p style="margin-bottom: 40px;">请输入验证码完成注册,有效期10分钟:</p>
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- <span style="padding: 10px 20px; font-size: 24px;background-color: #EB6F5A;border-radius:4px;color:#fff;">{captcha}</span>
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-</div>
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-</body>
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-</html>
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-'''
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-texthtml = MIMEText(sendHtml, _subtype='html', _charset='UTF-8')
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-msg.attach(texthtml)
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-# 发送邮件
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-try:
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- client = smtplib.SMTP()
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- #python 2.7以上版本，若需要使用SSL，可以这样创建client
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- #client = smtplib.SMTP_SSL()
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- #SMTP普通端口为25或80
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- client.connect('smtpdm.aliyun.com', 25)
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- #开启DEBUG模式
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- client.set_debuglevel(0)
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- client.login(username, password)
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- #发件人和认证地址必须一致
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- #备注：若想取到DATA命令返回值,可参考smtplib的sendmaili封装方法:
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- # 使用SMTP.mail/SMTP.rcpt/SMTP.data方法
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- client.sendmail(username, rcptto, msg.as_string())
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- client.quit()
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- print('邮件发送成功')
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-except smtplib.SMTPConnectError as e:
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- print('邮件发送失败，连接失败:', e.smtp_code, e.smtp_error)
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-except smtplib.SMTPAuthenticationError as e:
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- print('邮件发送失败，认证错误:', e.smtp_code, e.smtp_error)
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-except smtplib.SMTPSenderRefused as e:
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- print('邮件发送失败，发件人被拒绝:', e.smtp_code, e.smtp_error)
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-except smtplib.SMTPRecipientsRefused as e:
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- print('邮件发送失败，收件人被拒绝:', e.smtp_code, e.smtp_error)
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-except smtplib.SMTPDataError as e:
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- print('邮件发送失败，数据接收拒绝:', e.smtp_code, e.smtp_error)
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-except smtplib.SMTPException as e:
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- print('邮件发送失败, ', e.message)
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-except Exception as e:
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- print('邮件发送异常, ', str(e))
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+class Stack(object):
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+ """栈"""
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+ def __init__(self):
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+ self.items = []
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+
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+ def is_empty(self):
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+ """判断是否为空"""
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+ return self.items == []
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+
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+ def push(self, item):
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+ """加入元素"""
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+ self.items.append(item)
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+
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+ def pop(self):
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+ """弹出元素"""
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+ return self.items.pop()
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+
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+ def peek(self):
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+ """返回栈顶元素"""
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+ return self.items[len(self.items)-1]
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+
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+ def size(self):
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+ """返回栈的大小"""
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+ return len(self.items)
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+
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+if __name__ == "__main__":
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+ stack = Stack()
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+ stack.push("hello")
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+ stack.push("world")
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+ stack.push("itcast")
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+ print(stack.size())
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+ print(stack.peek())
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+ print(stack.pop())
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+ print(stack.pop())
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+ print(stack.pop())
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chenjunkai