python函数，,函数def send

python函数，,函数def send

函数

def sendmail(xo,zt,nr=‘ok‘): #默认函数 ：默认函数一定要放在最后面

try:

import smtplib

from email.mime.text import MIMEText

from email.utils import formataddr

msg = MIMEText(‘nr‘, ‘plain‘, ‘utf-8‘)

msg[‘From‘] = formataddr(["武沛齐", ‘13262209921@139.com‘])

msg[‘To‘] = formataddr(["走人", ‘xo‘])

msg[‘Subject‘] = "zt"

server = smtplib.SMTP("smtp.139.com", 25)

server.login("13262209921@139.com", "520122817")

server.sendmail(‘13262209921@139.com‘, [‘xo‘, ], msg.as_string())

server.quit()

except:

return "失败"

else:

return "cc"

#set = sendmail(‘13262209921@139.com‘,‘nihao‘,123456789) 普通函数

#set = sendmail(‘676989649@qq.com‘,‘nihao‘,123456789)

#sendmail(zt = 123456789, nr = ‘nihao‘) 指定函数

# 判断 成功好失败

while True:

em = input(‘输入邮箱地址：‘)

abc = sendmail(em,‘shuaige‘,‘ok‘) 普通函数

if abc == "cc":

print(‘发送成功‘)

else:

print(‘发送失败‘)

动态参数和万能参数

字符串

def fi(*args):

print(args)

abc = ‘ass‘,123

fi(*li) 加*把结果传进去

fi(li)

列表

li = [‘as‘, 123]

fi(*abc)

fi(abc)

def fl(**args):

print(args, type(args))

字典

def fl(*abc,**args):

print(abc,args)

dic = {‘k1‘:‘v1‘,‘k2‘:‘v2‘}

fl(**dic)

fl(n1=‘alex‘, n2=18)

格式化字符串1

a = [‘hhh‘,456]

b = {‘asd00‘:123,‘name‘:‘hanwei‘}

fl(*a,**b)

sl = ‘i am {name},age {age}‘.format(name=‘alex‘,age=18)

print(sl)

格式化字符串2

dic = {‘name‘:‘alex‘,‘age‘:18}

s2 = ‘i am {name},age {age}‘.format(**dic)

print(s2)

1.函数引用变量是连接引用

2.全局变量

均可读

腻值 如 globalNAME

字典，列表 可修改 不可腻值

全局变量用大写

练习

def login(username,password):

#打开文件验证用户名和密码

#return为True 成功

#return为Fslse 失败

f = open(‘db‘,‘r‘)

for line in f:

line_list = line.strip().split(‘|‘)

if line_list[0] == username and line_list[1] == password:

return True

return False

def abc(usernam,passwor):

#把注册的用户和密码写入到文件

with open(‘db‘,‘a‘)as w:

wh = ‘\n‘+usernam+‘|‘+passwor

w.write(wh)

w.close()

return True

def main():

#判读登录和注册

#把用户和密码传给函数

#判断还是否成功

t = input (‘1.登录 2.注册:‘)

if t == ‘1‘:

user = input(‘输入用户名:‘)

pwd = input(‘输入密码:‘)

r = login(user,pwd)

if r == True:

print(‘登录成功‘)

else:

print (‘登录失败‘)

elif t == ‘2‘:

user1 = input(‘输入用户名:‘)

pwd2 = input(‘输入密码:‘)

M = len(pwd2)

if M > 8:

abc(user1,pwd2)

print(‘成功注册%s‘ %user1)

else:

print(‘密码太短‘)

main()

python函数