PyQuery 用法和实例

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Usage_PyQuery
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Date    : 2017-09-25 11:08:58# @Author  : kangvcar (kangvcar@126.com)# @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)
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