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scrapy 相关问题
爬取text 包含某个关键字时zhibo_unicode = unicode("直播","utf-8")sel.xpath('//a[contains(span/text(),"%s")]/@href' % zhibo_unicode) 只能用%s占位符这种类似的方式。 以下方式是不...
分类:其他好文   时间:2014-06-28 21:14:38    阅读次数:232
PatentTips - Virtual translation lookaside buffer
BACKGROUND OF THE INVENTIONA conventional virtual-machine monitor (VM monitor) typically runs on a computer and presents to other software the abstrac...
分类:其他好文   时间:2014-06-21 06:29:43    阅读次数:181
PatentTips - Device virtualization and assignment of interconnect devices
BACKGROUNDStandard computer interconnects, particularly for personal computers or workstations, may employ a bus such as Peripheral Component Intercon...
分类:其他好文   时间:2014-06-21 00:54:17    阅读次数:418
PatentTips - Improving security in a virtual machine host
BACKGROUNDComputer viruses are a common problem for computer users. One typical mode of attack is to send an electronic mail message (e-mail) containi...
分类:其他好文   时间:2014-06-21 00:51:41    阅读次数:285
PatentTips - Control register access virtualization performance improvement
BACKGROUND OF THE INVENTIONA conventional virtual-machine monitor (VMM) typically runs on a computer and presents to other software the abstraction of...
分类:数据库   时间:2014-06-21 00:36:46    阅读次数:377
PatentTips - Transparent unification of virtual machines
BACKGROUNDVirtualization technology enables a single host computer running a virtual machine monitor ("VMM") to present multiple abstractions and/or v...
分类:其他好文   时间:2014-06-21 00:34:11    阅读次数:363
PatentTips - Enhancing the usability of virtual machines
BACKGROUNDVirtualization technology enables a single host computer running a virtual machine monitor ("VMM") to present multiple abstractions and/or v...
分类:其他好文   时间:2014-06-21 00:09:42    阅读次数:451
JavaScript,复习总结
ECMA(European Computer Manufacturers Association)欧洲计算机制造商协会。其制定很多标准:C#语言规范;C++/CLI语言规范;Eiffel语言;CD-ROM格式;ECMAScript语言规范(JavaScript)等。JavaScript(NetSca...
分类:编程语言   时间:2014-06-20 20:19:05    阅读次数:248
JQuery选择器大全
1.基本选择器选择器描述返回示例#id 单个元素 $("#test").class集合元素$(".test")element集合元素$("p")* 匹配所有元素集合元素$("*")selector1,selector2集合元素$("div,span,p")2. 层次选择器选择器描述返回示例$("a....
分类:Web程序   时间:2014-06-18 09:04:23    阅读次数:186
UML的基本图(三)
?? An artifact diagram shows the physical constituents of a system on the computer. Artifacts include files, databases, and similar physical collections of bits. Artifacts are often used in conjunct...
分类:其他好文   时间:2014-06-17 16:11:28    阅读次数:287
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