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µÃµ½Ò»¸öÐèÒª´¦ÀíµÄXMl
  private string GetSaveItem()
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml("<menuCollection/>");
foreach (TreeNode node in trvAccessRight.CheckedNodes)
{
if (node != trvAccessRight.Nodes[0])
{
XmlElement content = xmlDoc.CreateElement("menuItem");
content.SetAttribute("menuID", node.Value);
xmlDoc.DocumentElement.AppendChild(content);
}
}
return xmlDoc.OuterXml;
}
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ALTER PROCEDURE [dbo].[usp_UserGroup_SetRight]
(@GroupID INT ,@ChangedBy VARCHAR(50) ,@MenuXml XML)
AS
BEGIN

--SET XACT_ABORT ON
BEGIN TRY
BEGIN TRANSACTION

--delete
DELETE
from tbl_SysUserGroupRight
WHERE GroupId = @GroupID

--insert
INSERT INTO tb ......

XML ,query ºÍ valueÊÇÇø·Ö´óСд µÄ

DECLARE @x xml
SET @x='
<root>
  <ShopAccount>
    <ActivityType>IA - PM Standing WO (for LPI report)</ActivityType>
    <ProjectNo>R</ProjectNo>
  </ShopAccount>
  <ShopAccount>
    <ActivityType>IX - PM Associated WO (for LPI report)</ActivityType>
    <ProjectNo>C</ProjectNo>
  </ShopAccount>
</root>'
SELECT
ROW_NUMBER() OVER (order by T.c.value('ActivityType[1]','nvarchar(255)')) AS ROWID,
T.c.value('ActivityType[1]','nvarchar(255)') AS ActivityType
,T.c.value('ProjectNo[1]','nvarchar(255)') AS ProjectNo
from @x.nodes('/root/ShopAccount') T(c)
SELECT
ROW_NUMBER() OVER (order by T.c.query('ActivityType').value('ActivityType[1]','nvarchar(255)')) AS ROWID,
T.c.query('ActivityType').value('ActivityType[1]','nvarchar(255)') AS ActivityType
,T.c.query('ProjectNo').value('ProjectNo[1]','nvarchar(255)') A ......

ÓÃjquery½âÎöxmlÎļþ

²âÊÔÓõÄxmlÎļþ
<?xml version="1.0" encoding="UTF-8"?>
<schools>
<school id='111'>²âÊÔѧУ</school>
<school id='222'>²âÊÔѧУ22
<class id='2.1'>²âÊ԰༶222</class>
</school>
</schools> 
²âÊÔÓõÄJavaScript´úÂë
$().ready(function(){
$.post("/index_school/test_data.xml",function(data){
//½âÎöxmlÎļþÖеÄÐÅÏ¢
$(data).find('school').each(function(){
var $school = $(this);
//»ñÈ¡ÊôÐÔ
var schoolId = $school.attr("id");
//»ñÈ¡±êÇ©ÖеÄÎı¾
var schoolText = $school.text();
//»ñÈ¡×ÓÔªËØµÄÊôÐÔºÍÎı¾
/*
$school.find('class').each(function(){
var $schoolClass = $(this);
alert( $schoolClass.attr("id") + "--" +$schoolClass.text() );
})*/
//Èç¹ûûÓÐ,ÔòÔÚʹÓÃ֮ǰҪ½øÐÐÅжÏ
var classId = $school.children('class').attr("id");
if(classId!=null){
alert(classId);
}
})
});
});  ......

dom4j(XMLµÄ½âÎö)

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1.ÇóÏÂÃæº¯ÊýµÄ·µ»ØÖµ£¨Î¢Èí£©
int func(x)
{
int countx = 0;
while(x)
{
countx ++;
x = x&(x-1);
}
return countx;
}
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´ð£ºÒýÓþÍÊÇij¸öÄ¿±ê±äÁ¿µÄ“±ðÃû”(alias)£¬¶ÔÓ¦ÓõIJÙ×÷Óë¶Ô±äÁ¿Ö±½Ó²Ù×÷Ч¹ûÍêÈ«Ïàͬ¡£ÉêÃ÷Ò»¸öÒýÓõÄʱºò£¬ÇмÇÒª¶ÔÆä½øÐгõʼ»¯¡£ÒýÓÃÉùÃ÷Íê±Ïºó£¬Ï൱ÓÚÄ¿±ê±äÁ¿ÃûÓÐÁ½¸öÃû³Æ£¬¼´¸ÃÄ¿±êÔ­Ãû³ÆºÍÒýÓÃÃû£¬²»ÄÜÔٰѸÃÒýÓÃÃû×÷ΪÆäËû±äÁ¿ÃûµÄ±ðÃû¡£ÉùÃ÷Ò»¸öÒýÓ㬲»ÊÇж¨ÒåÁËÒ»¸ö±äÁ¿£¬ËüÖ»±íʾ¸ÃÒýÓÃÃûÊÇÄ¿±ê±äÁ¿ÃûµÄÒ»¸ö±ðÃû£¬Ëü±¾Éí²»ÊÇÒ»ÖÖÊý¾ÝÀàÐÍ£¬Òò´ËÒýÓñ¾Éí²»Õ¼´æ´¢µ¥Ôª£¬ÏµÍ³Ò²²»¸øÒýÓ÷ÖÅä´æ´¢µ¥Ôª¡£²»Äܽ¨Á¢Êý×éµÄÒýÓá£
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1.ÇóÏÂÃæº¯ÊýµÄ·µ»ØÖµ£¨Î¢Èí£©
int func(x)
{
int countx = 0;
while(x)
{
countx ++;
x = x&(x-1);
}
return countx;
}
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