BeautifulSoup Python抓网页小例子
# -*- coding: utf-8 -*-
import urllib2
from BeautifulSoup import BeautifulSoup, Tag
import re
page = urllib2.urlopen("http://bj.ganji.com/piao/zz_%E5%8C%97%E4%BA%AC-%E5%8D%97%E6%98%8C/20100210/")
soup = BeautifulSoup(page)
#ss = soup.findAll('a', href=re.compile(r"^/piao/100."))
ss = soup.findAll(attrs={"class":"list_piao"})
fp = open("c:\\Python25\\web.html","w")
doc = '''<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>keyunq tickets</title>
<meta http-equiv="refresh" content="5"/>
<link href="http://s1.ganjistatic1.com/css/base.__1265015655__.css" mce_href="http://s1.ganjistatic1.com/css/base.__1265015655__.css" rel="stylesheet" type="text/css" />
<link href="http://s1.ganjistatic1.com/css/train.__1264669543__.css" mce_href="http://s1.ganjistatic1.com/css/train.__1264669543__.css" rel="stylesheet" type="text/css" />
<mce:style><!--
.list_piao dt { float:left; width:40%; line-height:24px; font-size:14px; text-indent:5px;padding:5px 0;}
--></mce:style><style mce_bogus="1">.list_piao dt { float:left; width:40%; line-height:24px; font-size:14px; text-indent:5px;padding:5px 0;}</style>
</head>
<body>'''
fp.write('%s\n' % doc)
for i in ss:
i.dt['class'] = 'list_piao_time'
tmp = i.a['href']
i.a['href'] = 'http://bj.ganji.com'+tmp
phonepage = urllib2.urlopen(i.a['href'])
phonesoup = BeautifulSoup(phonepage)
phone = phonesoup.findAll(attrs={"class":"phoneNum"})
tmp = phone[0].img['src']
phone[0].img['src'] = 'http://bj.ganji.com'+tmp
tag1 = Tag(soup, "dd")
tag1['class'] = 'list_piao_mj'
i.insert(8,tag1)
相关文档：
0、字符串是不可变的。
1、基本字符串操作：索引、切片、复制、成员、长度、最大和最小。
2、字符串格式化：用格式化操作符百分号%实现，eg:>>> format = "Hello, %s. %s enough for ya?"
......
今天学习了一下Python的操作符重载，总结了几点比较神奇的东东：
------------------------------------------------------------------------------------------------------------
关于iter：
Technically, iteration contexts work by calling the iter built-in function to try to
find an _ _iter_ _ method, whi ......
看着网上抓取网页数据的文章直瞪眼
后来想到用字符串分割来提取相应部分的内容
程序简单，但数行数和下标费了很长时间
我知道这肯定不是最好的办法- -!!
但我实现了，哈哈
# -*- coding: cp936 -*-
from urllib import *
import re
def stockSearch():
baseurl="http://www.google.cn/financ ......
Ubuntu平台下的Python操作Mysql
1.安装Ubuntu,安装Msql.
2.打开终端,输入 python
import MySQLdb
con = MySQLdb.connect(db="python")
cur = con.cursor()
count = cur.execute("select * from test")
print count
data = cur.fetchall()
print data
for d in data:
print d
import os
os.system('clear') ......
在 python的lib目录里有一个：this.py，它其实是隐藏着一首诗，源码如下：
s =
"""Gur Mra bs Clguba, ol Gvz Crgref
Ornhgvshy vf orggre guna htyl.
Rkcyvpvg vf orggre guna vzcyvpvg.
Fvzcyr vf orggre guna pbzcyrk.
Pbzcyrk vf ......
