如果不了解TinyXml，建议先看一下这篇博客

http://blog.csdn.net/nat_myron/article/details/8740028

plist文件如下

 

    
        
             
      
       picture
              
                  
       
        1.png
                   
       
        2.png
                   
       
        3.png
               
              
      
       point
              
                  
       
        {257.902405,410.831543}
                   
       
        {521.964294,436.794006}
                   
       
        {766.067932,410.830719}
               
          
     
    

操作如下

 

 

TiXmlDocument *myDocument = new TiXmlDocument("SmallTools.plist");	myDocument->LoadFile();	TiXmlElement *RootPlist  = myDocument->RootElement();//plist	TiXmlElement *FirstDict = RootPlist->FirstChildElement();//dict	TiXmlElement *FirstKey = FirstDict->FirstChildElement();//key	TiXmlElement *SecDict = FirstKey->NextSiblingElement();//array	TiXmlElement *SecKey = SecDict->NextSiblingElement();//key	TiXmlElement *ThirdDict = SecKey->NextSiblingElement();//array	CCLOG(ThirdDict->Value());	//删除所有的子结点	ThirdDict->Clear();	for (int i=0;i
    
     objectAtIndex(i);		CCPoint point = sprite->getPosition();		char str[50];		sprintf(str,"{%lf,%lf}",point.x,point.y);		TiXmlElement *NameElement = new TiXmlElement("string");  		ThirdDict->LinkEndChild(NameElement);  		TiXmlText *NameContent = new TiXmlText(str);  		NameElement->LinkEndChild(NameContent);  		myDocument->SaveFile("SmallTools.plist");  	}