Python爬虫之PyQuery使用（六）

时间：2022-12-10 10:57:23

Python爬虫之PyQuery使用

PyQuery简介

pyquery能够通过选择器精确定位 DOM 树中的目标并进行操作。pyquery相当于jQuery的python实现，可以用于解析HTML网页等。它的语法与jQuery几乎完全相同，对于使用过jQuery的人来说很熟悉，也很好上手。

初始化

有 4 种方法可以进行初始化：
可以通过传入 字符串、lxml、文件 或者 url 来使用PyQuery

from pyquery import PyQuery as pq

from lxml import etree

d = pq("<html></html>")#传入字符串

d = pq(etree.fromstring("<html></html>"))#传入lxml

d = pq(url='http://baidu.com/') #传入url

d = pq(filename=path_to_html_file) #传入文件

　　

基本CSS选择器

html='''

<html>

 <body>

  <ul class="mh-col">

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-1"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E6%AD%8C%E6%89%8B%E9%AB%98%E7%A9%BA%E6%8B%8DMV%E5%9D%A0%E4%BA%A1&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     歌手高空拍MV坠亡

    </a>

    <span class="mh-ico-up">

    </span>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-2"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BD%9B%E7%A5%96%E6%9C%B1%E9%BE%99%E5%B9%BF%E9%87%91%E5%A9%9A&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D&fr=hao_360so_history_b" target="_blank">

     佛祖朱龙广金婚

    </a>

    <span class="mh-ico-down">

    </span>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-3"}' href="http://www.so.com/link?url=http%3A%2F%2Fbaike.so.com%2Fzt%2Fzufangfangpian.html%3Fsrc%3Dreci&q=%E5%91%A8%E6%9D%B0%E4%BC%A6%E7%9A%84%E6%AD%8C&ts=1540365398&t=c6890eee0e669832ca96d5223582d6e" target="_blank">

     常见租房陷阱

    </a>

    <span class="mh-ico-up">

    </span>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-4"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E9%9D%B3%E4%B8%9C%E5%9B%9E%E5%BA%94%E5%8F%91%E9%94%99%E8%AF%97%E8%AF%8D&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     靳东回应发错诗词

    </a>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-5"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%85%A4%E8%80%81%E6%9D%BF%E4%BB%AC%E7%9A%84%E5%BD%B1%E8%A7%86%E6%B1%9F%E6%B9%96&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     煤老板们的影视江湖

    </a>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-6"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=1024%E7%A8%8B%E5%BA%8F%E5%91%98%E8%8A%82&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     1024程序员节

    </a>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-7"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%BE%8E%E7%9A%84%E5%90%88%E5%B9%B6%E5%B0%8F%E5%A4%A9%E9%B9%85&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     美的合并小天鹅

    </a>

   </li>

   <li class="g-ellipsis">

    <a class="g-a-noline" data-md='{"b":"list","p":"1-8"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BA%AC%E6%98%86%E9%AB%98%E9%80%9F4%E8%BD%A6%E7%9B%B8%E6%92%9E&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     京昆高速4车相撞

    </a>

   </li>

  </ul>

 </body>

</html>

'''

from pyquery import PyQuery as pq
doc = pq(html)

# 获取所有a标签
print(doc('body .mh-col li a'))





注意：
类名用. 
id用#
标签用标签名


另外选择的是具有层级关系，从左到右，不是直接的父子的关系。


运行结果如下：




<a class="g-a-noline" data-md="{"b":"list","p":"1-1"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E6%AD%8C%E6%89%8B%E9%AB%98%E7%A9%BA%E6%8B%8DMV%E5%9D%A0%E4%BA%A1&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     歌手高空拍MV坠亡

    </a>

    <a class="g-a-noline" data-md="{"b":"list","p":"1-2"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BD%9B%E7%A5%96%E6%9C%B1%E9%BE%99%E5%B9%BF%E9%87%91%E5%A9%9A&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D&fr=hao_360so_history_b" target="_blank">

     佛祖朱龙广金婚

    </a>

    <a class="g-a-noline" data-md="{"b":"list","p":"1-3"}" href="http://www.so.com/link?url=http%3A%2F%2Fbaike.so.com%2Fzt%2Fzufangfangpian.html%3Fsrc%3Dreci&q=%E5%91%A8%E6%9D%B0%E4%BC%A6%E7%9A%84%E6%AD%8C&ts=1540365398&t=c6890eee0e669832ca96d5223582d6e" target="_blank">

     常见租房陷阱

    </a>

    <a class="g-a-noline" data-md="{"b":"list","p":"1-4"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E9%9D%B3%E4%B8%9C%E5%9B%9E%E5%BA%94%E5%8F%91%E9%94%99%E8%AF%97%E8%AF%8D&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     靳东回应发错诗词

    </a>

   <a class="g-a-noline" data-md="{"b":"list","p":"1-5"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%85%A4%E8%80%81%E6%9D%BF%E4%BB%AC%E7%9A%84%E5%BD%B1%E8%A7%86%E6%B1%9F%E6%B9%96&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     煤老板们的影视江湖

    </a>

   <a class="g-a-noline" data-md="{"b":"list","p":"1-6"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=1024%E7%A8%8B%E5%BA%8F%E5%91%98%E8%8A%82&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     1024程序员节

    </a>

   <a class="g-a-noline" data-md="{"b":"list","p":"1-7"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%BE%8E%E7%9A%84%E5%90%88%E5%B9%B6%E5%B0%8F%E5%A4%A9%E9%B9%85&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     美的合并小天鹅

    </a>

   <a class="g-a-noline" data-md="{"b":"list","p":"1-8"}" href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BA%AC%E6%98%86%E9%AB%98%E9%80%9F4%E8%BD%A6%E7%9B%B8%E6%92%9E&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     京昆高速4车相撞

    </a>





　　


操作




html='''

<html>

 <body>

  <ul class="mh-col">

   <li class="g-ellipsis1">

    <a class="g-a-noline1" data-md='{"b":"list","p":"1-1"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E6%AD%8C%E6%89%8B%E9%AB%98%E7%A9%BA%E6%8B%8DMV%E5%9D%A0%E4%BA%A1&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     歌手高空拍MV坠亡

    </a>

    <span class="mh-ico-up">

    </span>

   </li>

   <li class="g-ellipsis2">

    <a class="g-a-noline2" data-md='{"b":"list","p":"1-2"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BD%9B%E7%A5%96%E6%9C%B1%E9%BE%99%E5%B9%BF%E9%87%91%E5%A9%9A&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D&fr=hao_360so_history_b" target="_blank">

     佛祖朱龙广金婚

    </a>

    <span class="mh-ico-down">

    </span>

   </li>

   <li class="g-ellipsis3">

    <a class="g-a-noline3" data-md='{"b":"list","p":"1-3"}' href="http://www.so.com/link?url=http%3A%2F%2Fbaike.so.com%2Fzt%2Fzufangfangpian.html%3Fsrc%3Dreci&q=%E5%91%A8%E6%9D%B0%E4%BC%A6%E7%9A%84%E6%AD%8C&ts=1540365398&t=c6890eee0e669832ca96d5223582d6e" target="_blank">

     常见租房陷阱

    </a>

    <span class="mh-ico-up">

    </span>

   </li>

   <li class="g-ellipsis4">

    <a class="g-a-noline4" data-md='{"b":"list","p":"1-4"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E9%9D%B3%E4%B8%9C%E5%9B%9E%E5%BA%94%E5%8F%91%E9%94%99%E8%AF%97%E8%AF%8D&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     靳东回应发错诗词

    </a>

   </li>

   <li class="g-ellipsis5">

    <a class="g-a-noline5" data-md='{"b":"list","p":"1-5"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%85%A4%E8%80%81%E6%9D%BF%E4%BB%AC%E7%9A%84%E5%BD%B1%E8%A7%86%E6%B1%9F%E6%B9%96&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     煤老板们的影视江湖

    </a>

   </li>

   <li class="g-ellipsis6">

    <a class="g-a-noline6" data-md='{"b":"list","p":"1-6"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=1024%E7%A8%8B%E5%BA%8F%E5%91%98%E8%8A%82&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     1024程序员节

    </a>

   </li>

   <li class="g-ellipsis7">

    <a class="g-a-noline7" data-md='{"b":"list","p":"1-7"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E7%BE%8E%E7%9A%84%E5%90%88%E5%B9%B6%E5%B0%8F%E5%A4%A9%E9%B9%85&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     美的合并小天鹅

    </a>

   </li>

   <li class="g-ellipsis8">

    <a class="g-a-noline8" data-md='{"b":"list","p":"1-8"}' href="https://www.so.com/s?ie=utf-8&src=know_side_nlp_sohot&q=%E4%BA%AC%E6%98%86%E9%AB%98%E9%80%9F4%E8%BD%A6%E7%9B%B8%E6%92%9E&ob_ext=%7B%22rsv_cq%22%3A%22%5Cu5468%5Cu6770%5Cu4f26%5Cu7684%5Cu6b4c%22%2C%22rt%22%3A%22%5Cu5b9e%5Cu65f6%5Cu70ed%5Cu641c%22%2C%22rclken%22%3Anull%7D" target="_blank">

     <p>新闻</p>

     京昆高速4车相撞

    </a>

   </li>

  </ul>

 </body>

</html>

'''

from pyquery import PyQuery as pq

doc = pq(html)

items = doc('.mh-col')

#.find()：查找嵌套元素

alist = items.find('li a')

print(alist)

#查找所有子元素

alist2 = items.children()

print(alist2)

#查找指定的子元素

alist3 = items.children('.g-ellipsis1')
print(alist2) 



#查找父元素 
#注意：一个元素只有一个父元素 
body = items.parent() 
print(body) 

#查找祖先元素 
content = items.parents() 
print(content) 

#查找兄弟元素 
li = doc('.mh-col .g-ellipsis1') 
print(li.siblings()) 

#遍历 单个元素 
#遍历所有的a标签
alist =doc('.mh-col li a').items() 
　　for a in alist: print(a)




　　


获取信息




获取属性

a =doc('.mh-col li .g-a-noline8')

print(a.attr['href'])

print(a.attr.href)

获取文本

a =doc('.mh-col li .g-a-noline8')

print(a.text())

获取HTML

a =doc('.mh-col li .g-a-noline8')

print(a.html())





　


简单的DOM操作




#addClass、removerClass
#修改类名

a =doc('.mh-col li .g-a-noline8')

print(a)

a.removeClass('g-a-noline8')

print(a)

a.addClass('g-a-noline8')

print(a)

#attr、css
#修改属性和样式

a =doc('.mh-col li .g-a-noline8')

print(a)

a.attr('name','link')

print(a)

a.css('font-size','14px')

print(a)



#remove
#删除标签
li = doc('.mh-col .g-ellipsis8')
print(li)
li.find('a').remove()
print(li)




　　


更多的DOM操作：https://pyquery.readthedocs.io/en/latest/api.html
														
		
Python爬虫之PyQuery使用（六）的更多相关文章
	

    

  1. 
&lbrack;Python爬虫&rsqb; 之二十六：Selenium &plus;phantomjs 利用 pyquery抓取智能电视网站图片信息
		
    一.介绍 本例子用Selenium +phantomjs爬取智能电视网站(http://www.tvhome.com/news/)的资讯信息,输入给定关键字抓取图片信息. 给定关键字:数字:融合:电视 ...
    
		
    2. 
						
  2. 
python爬虫神器PyQuery的使用方法
		
    你是否觉得 XPath 的用法多少有点晦涩难记呢? 你是否觉得 BeautifulSoup 的语法多少有些悭吝难懂呢? 你是否甚至还在苦苦研究正则表达式却因为少些了一个点而抓狂呢? 你是否已经有了一些 ...
    
		
    3. 
						
  3. 
Python爬虫小白入门（六）爬取披头士乐队历年专辑封面-网易云音乐
		
    一.前言 前文说过我的设计师小伙伴的设计需求,他想做一个披头士乐队历年专辑的瀑布图. 通过搜索,发现网易云音乐上有比较全的历年专辑信息加配图,图片质量还可以,虽然有大有小. 我的例子怎么都是爬取图片? ...
    
		
    4. 
						
  4. 
python爬虫之PyQuery的基本使用
		
    PyQuery库也是一个非常强大又灵活的网页解析库,如果你有前端开发经验的,都应该接触过jQuery,那么PyQuery就是你非常绝佳的选择,PyQuery 是 Python 仿照 jQuery 的严 ...
    
		
    5. 
						
  5. 
python爬虫之pyquery学习
		
    相关内容: pyquery的介绍 pyquery的使用 安装模块 导入模块 解析对象初始化 css选择器 在选定元素之后的元素再选取 元素的文本.属性等内容的获取 pyquery执行DOM操作.css ...
    
		
    6. 
						
  6. 
【Python爬虫】PyQuery解析库
		
    PyQuery解析库 阅读目录 初始化 基本CSS选择器 查找元素 遍历 获取信息 DOM操作 伪类选择器 PyQuery 是 Python 仿照 jQuery 的严格实现.语法与 jQuery 几乎 ...
    
		
    7. 
						
  7. 
爬取网易云音乐评论！python 爬虫入门实战（六）selenium 入门！
		
    说到爬虫,第一时间可能就会想到网易云音乐的评论.网易云音乐评论里藏了许多宝藏,那么让我们一起学习如何用 python 挖宝藏吧! 既然是宝藏,肯定是用要用钥匙加密的.打开 Chrome 分析 Head ...
    
		
    8. 
						
  8. 
Python爬虫之pyquery库的基本使用
		
    # 字符串初始化 html = ''' <div> <ul> <li class = "item-0">first item</li&gt ...
    
		
    9. 
						
  9. 
python爬虫知识点总结（六）BeautifulSoup库详解
		
    官方学习文档:https://www.crummy.com/software/BeautifulSoup/bs4/doc.zh/ 一.什么时BeautifulSoup? 答:灵活又方便的网页解析库,处 ...
    
		
    10. 
		


随机推荐
	

    

  1. 
Linux学习 ：中断处理机制 &amp&semi; poll机制
			
    中断是指在CPU正常运行期间,由于内外部事件或由程序预先安排的事件引起的CPU暂时停止正在运行的程序,转而为该内部或外部事件或预先安排的事件服务 的程序中去,服务完毕后再返回去继续运行被暂时中断的程序 ...
    
			
    2. 
						
  2. 
Android：打包apk
			
    右击项目->导出export next,完成相关信息填写将得到.apk文件,即可部署到手机上. 第一次: 然后打开目录就可以看到生成的apk,可以发布到各大市场上.
    
			
    3. 
						
  3. 
使用ajax和history&period;pushState无刷新改变页面URL onpopstate（转）
			
    Javascript代码 var htmlData1 = $.ajax(    {    url: "/getXXXResponse",    async: false }).re ...
    
			
    4. 
						
  4. 
【最大点独立集】【poj1419】【Graph Coloring】
			
    题意: 最多能选取多少点,没有边相连. 解法: 取反图,求最大团 代码: #include<cstdio> #include<cstring> #include<iost ...
    
			
    5. 
						
  5. 
关于php变量的赋值和引用的区别
			
    刚开始学习php,发现有些地方和js语法不同,所以记录下来. 这篇文章是总结php中变量赋值和引用的区别. 我们知道,js中,原始类型的赋值,是将值直接复制给变量:引用类型的赋值,是将内存地址复制给变 ...
    
			
    6. 
						
  6. 
Java能不能通过代码干预Java垃圾回收
			
    1.不能通过Java代码干预Java垃圾回收. 2.system.gc是请求运行垃圾回收器,不一定真的运行了垃圾回收器. 3.Java的system.gc不受代码控制. 4.影响Java虚拟机垃圾回收 ...
    
			
    7. 
						
  7. 
使用页面Cookie做ABTest测试
			
    背景介绍: 公司为了提升网站销售,做了2种不同风格的Bug页面,需要测试哪个页面的销售效果更好,使用了ABTest. 原理: 当用户访问www.website.com/buy.php时,生成一个随机数 ...
    
			
    8. 
						
  8. 
VS2013 生成时复制文件或目录到指定目录
			
    需求: 在vs2010生成成功时将项目Lib目录下Reader文件夹内的所有文件和文件夹复制到输出目录(Debug或Release目录) 方法: 打开VS2010,右键项目属性-生成事件-后期生成事件 ...
    
			
    9. 
						
  9. 
SQL调优（SQL TUNING）并行查询提示（Hints）之pq&lowbar;distribute的使用
			
    pq_distribute提示通常被用于提升数据仓库中分区表间的连接操作性能. pq_distribute提示允许你确定参与连接的表数据行在生产和消费并行查询服务进程间如何分配. pq_distrib ...
    
			
    10. 
						
  10. 
用C语言&lpar;apue&rpar;实现 把时间戳转换为国标格式的字符串（2017-07-17 22&colon;36&colon;12）的函数
			
    /*******************************************************************************/ /** *** 函 数 名: cha ...
    
			
    11. 
			
相关文章