整理Py小demo

from email.mime.text import MIMEText
# 第一个参数就是邮件正文，第二个参数是MIME的subtype，
# 传入'plain'表示纯文本，最终的MIME就是'text/plain'，最后一定要用utf-8编码保证多语言兼容性。
msg=MIMEText('Hello Send By Python123','plain','utf-8')

import smtplib
server =smtplib.SMTP_SSL('smtp.qq.com',465)
server.set_debuglevel(1)
# essplrlkpwcvbfci
# server.ehlo()
# server.starttls()
server.login('912549963@qq.com','xxxx是邮箱客户端的一列序列号')
server.sendmail('912549963@qq.com','18437963713@163.com',msg.as_string())
server.quit()



# from email.mime.text import MIMEText
# msg = MIMEText('hello, send by Python5656', 'plain', 'utf-8')
# import smtplib
# server = smtplib.SMTP_SSL('smtp.qq.com', 465) # SMTP协议默认端口是25
# server.set_debuglevel(1)
# server.ehlo()
# server.starttls()
# server.login('912549963@qq.com','nrabssgxathrbfhh')
# server.sendmail('912549963@qq.com','18437963713@163.com', msg.as_string())
# server.quit()

# import urllib.request
# import re
# import os
# import urllib
# #根据给定的网址来获取网页详细信息，得到的html就是网页的源代码
# def getHtml(url):
#     page = urllib.request.urlopen(url)
#     html = page.read()
#     return html.decode('UTF-8')
#
# def getImg(html):
#     reg = r'src="(.+?\.jpg)" pic_ext'
#     imgre = re.compile(reg)
#     imglist = imgre.findall(html)#表示在整个网页中过滤出所有图片的地址，放在imglist中
#     x = 0
#     path = 'D:\\test'
#    # 将图片保存到D:\\test文件夹中，如果没有test文件夹则创建
#     if not os.path.isdir(path):
#         os.makedirs(path)
#     paths = path+'\\'      #保存在test路径下
#
#     for imgurl in imglist:
#         urllib.request.urlretrieve(imgurl,'{}{}.jpg'.format(paths,x))  #打开imglist中保存的图片网址，并下载图片保存在本地，format格式化字符串
#         x = x + 1
#     return imglist
# html = getHtml("http://tieba.baidu.com/p/2460150866")#获取该网址网页详细信息，得到的html就是网页的源代码
# print (getImg(html)) #从网页源代码中分析并下载保存图片
#endregion

 

from flask import Flask # 导入包

app = Flask(__name__) # 创建一个Web应用

@app.route('/') # 定义路由(Views)，可以理解为定义页面的URL
def index():
    return "这是用Python + Flask 搞出来的。" # 渲染页面

if __name__ == "__main__":
    app.run(host='127.0.0.1',port=8080) # 运行，指定监听地址为 127.0.0.1:8080
# http://127.0.0.1:8080/  运行这个会返回--》这是用Python + Flask 搞出来的。

if __name__ == '__main__':#这个其实就是在当前模块的时候，_name_的值是__main__，在其他模块引用此模块的话，name的值就是“当前”模块的值。

　　

import urllib.request
url='http://www.sogou.com/'
local_path='E:\download.html'
urllib.request.urlretrieve(url, local_path)

# a=lambda x:x+2#这里的拉姆达表达示被看成一个函数了
# print(a(1))
# print(a(2))
#
# add = lambda x, y : x+y
# print(add(1,2) ) # 结果为3

# y=lambda  a,b,c:(a+b)/c
# print(str(y(1,5,9))[0:5])

# from bs4 import BeautifulSoup
# import requests
# from datetime import datetime
# import json
# import re

# news_url = 'http://news.sina.com.cn/c/nd/2017-05-08/doc-ifyeycfp9368908.shtml'
# web_data = requests.get(news_url)
# web_data.encoding = 'utf-8'
# soup = BeautifulSoup(web_data.text,'lxml')
# # print(soup.select('a'))
#
# links = soup.findAll('a')
# href=soup.select('.side-tool to-top')
# print(links)
# print(href)
# print(soup.a.string)
# print(soup.a.attrs)
# title = soup.select('#artibodyTitle')[0].text
# a1 = soup.select('a')
# a = soup.select('a')[0]
# aa = soup.select('a')[0]['href']
# print(title)
# print('----------------------------------------------------')
#
# for hrefs in a1:
#     print(hrefs.text)
#     print(hrefs)
#     a= a1.select('a')[2]['href']
#     print(a)
    # print(hrefs.select('.href'))
# print(a1)
# print(a)
# print(aa)

from  bs4 import BeautifulSoup
import requests
from datetime import datetime
import json
import re

url='http://news.sina.com.cn/c/nd/2017-05-08/doc-ifyeycfp9368908.shtml'
web_Content=requests.get(url)
web_Content.encoding='utf-8'
soup=BeautifulSoup(web_Content.text,'lxml')
title=soup.select('#artibodyTitle')[0].text

print(title)

time = soup.select('.time-source')[0].contents[0].strip()
dt = datetime.strptime(time,'%Y年%m月%d日%H:%M')
print(dt)

class Foo:

    def __init__(self, name, age):
        self.name = name
        self.age = age

    def detail(self):
        print(self.name)
        print(self.age)

obj1 = Foo('chengd', 18)
obj1.detail()  # Python默认会将obj1传给self参数，即：obj1.detail(obj1)，所以，此时方法内部的 self ＝ obj1，即：self.name 是 chengd ；self.age 是 18

# obj2 = Foo('python', 99)
# obj2.detail()  # Python默认会将obj2传给self参数，即：obj1.detail(obj2)，所以，此时方法内部的 self ＝ obj2，即：self.name 是 python ； self.age 是 99x

 

# 在这个函数中Yield 是用来返回值得，就好比return
# def addlist(alist):
#     for i in alist:
#         yield i+1
#
# alist=[1,2,3]
# for x in addlist(alist):
#     print(x)
print('----------12121212--------------------------------------------')
def h():
    print ('To be brave')
    m= yield 5656
    print('Fighting!')
cc=h()
mm=cc.__next__()
# print(cc.__next__())
print(mm)

print('------------------78979887--------------------------')
def h():
    print ('Wen Chuan')
    mm = yield 5555
    print ('Fighting!')

c = h()
m = c.__next__()
print('mm value is ',m)

print('-------------------------------------------------------------------')
def h():
    print ('Wen Chuan')
    m = yield 5  # Fighting!
    print (m)
    d = yield 12
    print ('We are together!')
c = h()
c.__next__()  #相当于c.send(None)
c.send('Fighting!')  #(yield 5)表达式被赋予了'Fighting!'

print('-----------rrrrrrrrrrrrrrrrrrrrrrr----------------------------------------')
def h():
    print ('Wen Chuan',)
    mm = yield 5  # Fighting!
    print (m)
    ddd = yield 12
    print ('We are together!')
c = h()
m = c.__next__()  #m 获取了yield 5 的参数值 5 ---- 可能是遇到的第一个yield的值
d = c.send('Fighting!')  #d 获取了yield 12 的参数值12 ---- send里的参数会把第一个yield替换掉。然后c.send()获取第二个yield的值
print ('We will never forget the date', m, '.', d)
# send(msg) 和 next()是有返回值的，它们的返回值很特殊，返回的是下一个yield表达式的参数