测试的data.xml文件的内容如下：

<data>
	<p name="cxm" age="20"/>
	<p name="zqr" age="30"/>
	<p name="zrk" age="40"/>
</data>

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

USING_NS_CC;


class HelloWorld : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();

    virtual bool init();

	void readXmlByCocosAPI();

    CREATE_FUNC(HelloWorld);

private:
	LabelTTF *pLabel;
};

#endif // __HELLOWORLD_SCENE_H__

#include "HelloWorldScene.h"
#include "tinyxml2/tinyxml2.h"

Scene* HelloWorld::createScene()
{
    auto scene = Scene::create();
    auto layer = HelloWorld::create();
    scene->addChild(layer);

    return scene;
}

bool HelloWorld::init()
{
    if ( !Layer::init() )
    {
        return false;
    }
    
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

	pLabel = LabelTTF::create("","Arial",30);
	pLabel->setPosition(visibleSize/2.0);
	this->addChild(pLabel);

	this->readXmlByCocosAPI();

    return true;
}

void HelloWorld::readXmlByCocosAPI()
{
	auto doc = new tinyxml2::XMLDocument();
	doc->Parse(FileUtils::getInstance()->getStringFromFile("data.xml").c_str());
	auto root = doc->RootElement();

	for (auto e = root->FirstChildElement(); e; e = e->NextSiblingElement())
	{
		std::string str;
		for (auto attr = e->FirstAttribute(); attr; attr = attr->Next())
		{
			str += attr->Name();
			str += ":";
			str += attr->Value();
			str += ",";
		}
		log("%s",str.c_str());
	}

	CC_SAFE_DELETE(doc);
}