使用tinyxml实现GetElementById函数

bool GetElementById(TiXmlElement* pRootEle,std::string &id,TiXmlElement* &Node)
{

TiXmlAttribute* attributeNode = NULL;

attributeNode = pRootEle->FirstAttribute();
while ( attributeNode )
{
std::string str = attributeNode->Name();
std::string strvalue = attributeNode->Value();
str = strlwr((char *)str.c_str());
if(strcmp(str.c_str(), "id") == 0 && strcmp(id.c_str(),strvalue.c_str()) == 0)
{
Node = pRootEle;
return true;
}
attributeNode = attributeNode->Next();
}

TiXmlElement* pEle = pRootEle;

for (pEle = pRootEle->FirstChildElement(); pEle; pEle = pEle->NextSiblingElement())
{
//递归处理子节点，获取节点指针
if(GetElementById(pEle,id,Node))
return true;
}

return false;

}