PyQuery 用法和实例

Usage_PyQuery

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Date    : 2017-09-25 11:08:58
# @Author  : kangvcar ([email protected])
# @Link    : http://www.github.com/kangvcar/
# @Version : $Id$

## 安装
# pip install pyquery

# print "================================================"
## 初始化
# 1.直接字符串
# from pyquery import PyQuery as pq
# doc = pq("")

# 2.lxml.etree
# from lxml import etree
# doc = pq(etree.fromstring(""))

# 3.直接传URL
# from pyquery import PyQuery as pq
# doc = pq('http://www.baidu.com')

# 4.传文件
# from pyquery import PyQuery as pq
# doc = pq(filename='hello.html')


# print "================================================"
# 
# hello.html 内容如下
# 

#

• #
• first item #
• second item #
• third item #
• fourth item #
• fifth item #

#

# from pyquery import PyQuery as pq # doc = pq(filename='hello.html') # print doc.html() # print type(doc) # li = doc('li') # print type('li') # print li.text() # print "================================================" ## 属性操作 # from pyquery import PyQuery as pq # p = pq('

')('p') # print p.attr("id") # print p.attr("id", "plop") # print p.attr("id", "hello") # from pyquery import PyQuery as pq # p = pq('

')('p') # print p.addClass('beauty') # print p.removeClass('hello') # print p.css('font-size', '16px') # print p.css({'background-color': 'yellow'}) # print "================================================" ## DOM操作 # from pyquery import PyQuery as pq # p = pq('

')('p') # print p.append(' check out reddit') # print p.prepend('Oh yes!') # d = pq('

Germy

') # p.prependTo(d('#test')) # print p # print d # d.empty() # print d # print "================================================" ## 遍历 # 遍历用到 items 方法返回对象列表，或者用 lambda # from pyquery import PyQuery as pq # doc = pq(filename='hello.html') # lis = doc('li') # for li in lis.items(): # print li.html() # print lis.each(lambda e: e) # print "================================================" # 网页请求 # PyQuery 本身还有网页请求功能，而且会把请求下来的网页代码转为 PyQuery 对象。 # from pyquery import PyQuery as pq # print pq('http://cuiqingcai.com/', headers={'user-agent': 'pyquery'}) # print pq('http://httpbin.org/post', {'foo': 'bar'}, method='post', verify=True)