def function():
函数体
...
function()
# 邮件库
import smtplib
# 加密
from smtplib import SMTP_SSL
#邮件正文
from email.mime.text import MIMEText
# 邮件主体
from email.mime.multipart import MIMEMultipart
# 邮件头
from email.header import Header
def send_email(email):
# ### 1.邮件内容配置 ###
# 参数
my_server = 'smtp.189.cn'
my_mail = "发件人邮箱名@189.cn"
my_pwd = "发件人邮箱密码"
send_title = "python send mail automatically"
mail_content = "this is my test mail by python"
mail_body = MIMEMultipart()
mail_body['Subject'] = Header(send_title,'utf-8')
mail_body['From'] = Header(my_mail,'utf-8')
mail_body['To'] = Header('test by python','utf-8')
mail_body.attach(MIMEText(mail_content,'plain','utf-8'))
smtp = SMTP_SSL(my_server)
smtp.login(my_mail,my_pwd)
smtp.sendmail(my_mail,email,mail_body.as_string())
smtp.quit()
mail_address = "收件人的邮箱名@qq.com"
send_email(mail_address)
def func(n1,n2):
print(n1+n2)
func(13,12)
关键字传参
def func(n1,n2):
print(n1+n2)
func(n1=11,n2=2)
# 位置和关键参数混用,关键字参数要在前面)
func(112, 8, a3=7)
func(112, a2=8, a3=7)
func(a1=112, a2=8, a3=7)
动态参数及注意事项
def my_function(*args):
print(args) # 接收的变量相当于元组 (1,2,)
# 只能按照位置传参
my_function(22,33,99)
# 为空的时候相当于接收空元组
my_function()
def my_function(**kwargs):
print(kwargs) # 接收的变量相当于字典{"name":"武大","age":"36","feature":"小"} {}
# 只能按关键字传参
my_function(name="武大", age=36, feature="小")
def my_function(*args,**kwargs):
print(args,kwargs) # (1,2,3) {}
my_function(1,2,3,name="武大", age=36,)
my_function() #接收的是代元组+字典
# * 必须放在 ** 的前面
def my_function(*args, **kwargs):
print(args, **kwargs)
# 动态参数只能放在一般参数的最后。
def my_function(n1, n2, n3, *args, **kwargs):
print(n1, n2, n3, args, **kwargs)
# 默认值参数放在**关键字参数前面
def my_function(n1, n2, n3, n4=10, *args, n5=20, **kwargs):
print(n1, n2, n3, n4, n5, args, kwargs)
my_function(1, 2, 3, 4, 5, 6, 7, n5=100, n10=778)
def my_function():
total = 1 + 1
result = my_function()
print(result) # None
def my_function():
total = 1 + 1
return # 或 return None
result = my_function()
print(result) # None
# 返回值后有逗号,则会将返回值转换成元组返回
def my_function():
return 1,2,3
total = my_function()
print(total) # (1,2,3)