博客园-netkey-最新评论http://www.cnblogs.com/netkey/CommentsRSS.aspxzh-cnWed, 15 Oct 2008 15:18:31 GMTWed, 15 Oct 2008 15:18:31 GMTcnblogsRe:简单实用的DataSet更新数据库的类(没试过)http://www.cnblogs.com/netkey/archive/2009/07/17/1099029.html#1588096心语悠长心语悠长Fri, 17 Jul 2009 15:07:13 GMThttp://www.cnblogs.com/netkey/archive/2009/07/17/1099029.html#1588096
心语悠长 2009-07-17 23:07 发表评论
]]>re: CSS滤镜实现的各种效果http://www.cnblogs.com/netkey/archive/2008/11/21/1308698.html#1376533cloudgamercloudgamerFri, 21 Nov 2008 00:36:40 GMThttp://www.cnblogs.com/netkey/archive/2008/11/21/1308698.html#1376533http://www.cnblogs.com/cloudgamer/archive/2008/05/23/1205642.html
我这里有一个滤镜的应用

cloudgamer 2008-11-21 08:36 发表评论
]]>re: ASP.Net中生成静态HTML页http://www.cnblogs.com/netkey/archive/2008/09/20/1123563.html#1322254谢小妹谢小妹Sat, 20 Sep 2008 06:48:04 GMThttp://www.cnblogs.com/netkey/archive/2008/09/20/1123563.html#1322254
谢小妹 2008-09-20 14:48 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123154netkey码netkey码Wed, 26 Mar 2008 07:12:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123154
Selecting price Nodes with Price>35
选择price大于35的price节点
The following example selects all the price nodes with a price higher than 35:

xmlDoc.selectNodes("/bookstore/book[price>35]/price")
If you have IE 5 or higher you can try it yourself.


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Selecting title Nodes with Price>35
选择Price大于35的title节点
The following example selects all the title nodes with a price higher than 35:

xmlDoc.selectNodes("/bookstore/book[price>35]/title")


netkey码 2008-03-26 15:12 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123152netkey码netkey码Wed, 26 Mar 2008 07:11:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123152
Select the First book Node
选择第一个book节点
The following example selects only the first book node under the bookstore element:

xmlDoc.selectNodes("/bookstore/book[0]")
If you have IE 5 or higher you can try it yourself.

Note: IE 5 and 6 has implemented that [0] should be the first node, but according to the W3C standard it should have been [1]!!


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Select the prices
选择prices
The following example selects the text from all the price nodes:

xmlDoc.selectNodes("/bookstore/book/price/text()")
If you have IE 5 or higher you can try it yourself.



netkey码 2008-03-26 15:11 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123149netkey码netkey码Wed, 26 Mar 2008 07:11:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123149
Selecting Nodes
选择节点
We will use the Microsoft XMLDOM object to load the XML document and the selectNodes() function to select nodes from the XML document:
我们使用了XMLDOM对象来加载XML文档并用selectNode()函数来进行XML文档上节点的选择：

set xmlDoc=CreateObject("Microsoft.XMLDOM")
xmlDoc.async="false"
xmlDoc.load("books.xml")
xmlDoc.selectNodes(path expression)


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Select all book Nodes
选择所有book节点
The following example selects all the book nodes under the bookstore element:
下面这个实例就会选择所有bookstore元素以下的book节点：

xmlDoc.selectNodes("/bookstore/book")
如果你有IE5以上的版本你可以自己来做一下.



netkey码 2008-03-26 15:11 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123148netkey码netkey码Wed, 26 Mar 2008 07:11:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123148
The XML Example Document
We will use the following XML document in the examples below.
我们将使用下面这个XML文档来进行实例

"books.xml":

<?xml version="1.0" encoding="ISO-8859-1"?>
<bookstore>
<book category="COOKING">
<title lang="en">Everyday Italian</title>
<author>Giada De Laurentiis</author>
<year>2005</year>
<price>30.00</price>
</book>
<book category="CHILDREN">
<title lang="en">Harry Potter</title>
<author>J K. Rowling</author>
<year>2005</year>
<price>29.99</price>
</book>
<book category="WEB">
<title lang="en">XQuery Kick Start</title>
<author>James McGovern</author>
<author>Per Bothner</author>
<author>Kurt Cagle</author>
<author>James Linn</author>
<author>Vaidyanathan Nagarajan</author>
<year>2003</year>
<price>49.99</price>
</book>
<book category="WEB">
<title lang="en">Learning XML</title>
<author>Erik T. Ray</author>
<year>2003</year>
<price>39.95</price>
</book>
</bookstore>
View the "books.xml" file in your browser.



netkey码 2008-03-26 15:11 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123147netkey码netkey码Wed, 26 Mar 2008 07:11:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123147
XPath Operators
Below is a list of the operators that can be used in XPath expressions:

Operator Description Example Return value
| Computes two node-sets //book | //cd Returns a node-set with all book and cd elements
+ Addition 6 + 4 10
- Subtraction 6 - 4 2
* Multiplication 6 * 4
24
div Division 8 div 4 2
= Equal price=9.80 true if price is 9.80
false if price is 9.90
!= Not equal price!=9.80 true if price is 9.90
false if price is 9.80
< Less than price<9.80 true if price is 9.00
false if price is 9.80
<= Less than or equal to price<=9.80 true if price is 9.00
false if price is 9.90
> Greater than price>9.80 true if price is 9.90
false if price is 9.80
>= Greater than or equal to price>=9.80 true if price is 9.90
false if price is 9.70
or or price=9.80 or price=9.70 true if price is 9.80
false if price is 9.50
and and price>9.00 and price<9.90 true if price is 9.80
false if price is 8.50
mod Modulus (division remainder) 5 mod 2 1



XPath实例


Let's try to learn some basic XPath syntax by looking at some examples.
让我们来尝试通过观察一些实例来学习基础的XPath语法



netkey码 2008-03-26 15:11 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123146netkey码netkey码Wed, 26 Mar 2008 07:10:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123146
Location Path Expression
路径表达试定位
A location path can be absolute or relative.
定位路径可以是绝对的也可以是相对的

An absolute location path starts with a slash ( / ) and a relative location path does not. In both cases the location path consists of one or more steps, each separated by a slash:
绝对定位的路径由(/)开始，而相对定位就不这样。定位的路径由一个或多个步骤所组成，每部分由(/)相分隔：

An absolute location path:
/step/step/...
A relative location path:
step/step/...
Each step is evaluated against the nodes in the current node-set.
在当前的节集中每步的赋值是逆向的

A step consists of:

an axis (defines the tree-relationship between the selected nodes and the current node)
a node-test (identifies a node within an axis)[在轴中鉴定节]
zero or more predicates (to further refine the selected node-set)[0个或多个谓语可以来更好的选择节]
The syntax for a location step is:
定位的语法

axisname::nodetest[predicate]
Examples
实例
Example 结果
child::book Selects all book nodes that are children of the current node[选择当前节点下所有为book的子节点]
attribute::lang Selects the lang attribute of the current node[选择当前节点下所有属性为lang的内容]
child::* Selects all children of the current node[选择当前节下所有的子节]
attribute::* Selects all attributes of the current node[选择当前节所有的属性]
child::text() Selects all text child nodes of the current node[选择当前节点所有子节点的文字]
child::node() Selects all child nodes of the current node[选择所有当前节点的子节点]
descendant::book Selects all book descendants of the current node[选择当前节点所有为book的孙节点]
ancestor::book Selects all book ancestors of the current node[选择所有当前祖节点为book的节点]
ancestor-or-self::book Selects all book ancestors of the current node - and the current as well if it is a book node[当前节点和其祖节点为book的节点]
child::*/child::price Selects all price grandchildren of the current node[当前节点所有含price的孙子节点]




XPath运算符


An XPath expression returns either a node-set, a string, a Boolean, or a number.



netkey码 2008-03-26 15:10 发表评论
]]>re: XPath详细介绍(连载,抄来的)http://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123142netkey码netkey码Wed, 26 Mar 2008 07:10:00 GMThttp://www.cnblogs.com/netkey/archive/2008/03/26/1123128.html#1123142
XPath Axes
XPath轴
An axis defines a node-set relative to the current node.
轴定义了相对于当前节的节集

轴名 结果
ancestor Selects all ancestors (parent, grandparent, etc.) of the current node[选择了当前节的所有祖（父，祖父，等等）]
ancestor-or-self Selects all ancestors (parent, grandparent, etc.) of the current node and the current node itself[选择当前节的所有祖并且还有当前节自己]
attribute Selects all attributes of the current node[选择所有当前节的属性]
child Selects all children of the current node[选择所有当前节的子]
descendant Selects all descendants (children, grandchildren, etc.) of the current node[选择所有当前节的孙（子，孙子，等等）]
descendant-or-self Selects all descendants (children, grandchildren, etc.) of the current node and the current node itself[选择当前节的所有孙以及它本身]
following Selects everything in the document after the closing tag of the current node[选择所有在关闭当前节标签后的所有内容]
following-sibling Selects all siblings after the current node[选择所有当前节后的兄]
namespace Selects all namespace nodes of the current node[选择所有当前节的命名空间]
parent Selects the parent of the current node[选择当前节的父]
preceding Selects everything in the document that is before the start tag of the current node[选择当前节之前的所有内容]
preceding-sibling Selects all siblings before the current node[选择所有当前节之前的兄]
self Selects the current node[选择当前节]



netkey码 2008-03-26 15:10 发表评论
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