如何访问xml中所有标签为label 的内容

[shiter]

标签label在标签question中，，question有嵌套定义，所以可能得用到递归访问

我写的函数有点问题，求指导：


解析库用的tinyxml2：

http://grinninglizard.com/tinyxml2docs/index.html

[code=c][/void findAllLabel(XMLElement* next)
{
if(next->FirstChildElement("Question"))
{
next = next->FirstChildElement("Question");
string str = next->FirstChildElement("Label")->GetText();
cout<<str<<endl;

}
else
{
XMLElement *neighbor = next->NextSiblingElement();
while(neighbor)
{
string str1 = neighbor->FirstChildElement("Label")->GetText();
cout<<str1<<endl;
neighbor = neighbor->NextSiblingElement();
}
next =
}

//XMLElement* nextElement = next->FirstChildElement("Question");
findAllLabel(next);



}code]

[shiter]

[shiter]

void findAllLabel(XMLElement* next)
{
	if(next->FirstChildElement("Question"))
	{
		next = next->FirstChildElement("Question");
		string str = next->FirstChildElement("Label")->GetText();
		cout<<str<<endl;
		
	}
	else
	{
		XMLElement *neighbor = next->NextSiblingElement();
		while(neighbor)
		{
			string str1 = neighbor->FirstChildElement("Label")->GetText();
			cout<<str1<<endl;
			neighbor = neighbor->NextSiblingElement();
		}
		next = 
	}
	
	//XMLElement* nextElement = next->FirstChildElement("Question");
	findAllLabel(next);
	
	
	
}

[爷就是这个范儿]

引用 2 楼 wangyaninglm 的回复:

void findAllLabel(XMLElement* next)
{
	if(next->FirstChildElement("Question"))
	{
		next = next->FirstChildElement("Question");
		string str = next->FirstChildElement("Label")->GetText();
		cout<<str<<endl;
		
	}
	else
	{
		XMLElement *neighbor = next->NextSiblingElement();
		while(neighbor)
		{
			string str1 = neighbor->FirstChildElement("Label")->GetText();
			cout<<str1<<endl;
			neighbor = neighbor->NextSiblingElement();
		}
		next = 
	}
	
	//XMLElement* nextElement = next->FirstChildElement("Question");
	findAllLabel(next);
	
	
	
}

这个刚做过一个项目用到过，加我Q：172759749教你

[shiter]

引用 3 楼 ilikehigame 的回复:

这个刚做过一个项目用到过，加我Q：172759749教你

[欢乐的小猪]

引用 4 楼 wangyaninglm 的回复:

[quote=引用 3 楼 ilikehigame 的回复:] 这个刚做过一个项目用到过，加我Q：172759749教你

[/quote]这么好，还有人手把手教

[shiter]

引用 5 楼 hbu_pig 的回复:

[quote=引用 4 楼 wangyaninglm 的回复:] [quote=引用 3 楼 ilikehigame 的回复:] 这个刚做过一个项目用到过，加我Q：172759749教你

[/quote]这么好，还有人手把手教[/quote] 哎，楼上那位兄台叫我写一个三层for循环，我也是醉了。。。

[haierpro]

void findAllLabel(XMLElement* next)
{
	XMLElement *pLable = next->FirstChildElement("Label")
	if (pLable)
	{
		cout<<pLable->GetText();
	}
	
	XMLElement *nextChild = next->FirstChildElement("Question")
	while(nextChild)
	{
		findAllLabel(next);
		nextChild = nextChild->NextSiblingElement();
	}
}

未测试，你试一下吧，递归一定要只处理本层的事务，才不会混乱。

[shiter]

<?xml version="1.0" encoding="utf-8"?>
<Questions Project="simple_survey" Context="Question" >
  <Question QuestionFullName="Respondent" QuestionType="Block" IsSystem="true">
    <Label>Variables reserved for respondent identification</Label>
    <Question QuestionName="Serial" QuestionFullName="Respondent.Serial" IsSystem="true" >
      <Label>Serial number</Label>
      
      <HelperFields>
        <Question QuestionName="SourceFile" QuestionFullName="Respondent.Serial.SourceFile" IsSystem="true" >
          <Label>What source file (for example, TIFF) can be used to get the respondent's serial number?</Label>
        </Question>
      </HelperFields>
    </Question>
    </Questions>

引用 7 楼 haierpro 的回复:

void findAllLabel(XMLElement* next)
{
	XMLElement *pLable = next->FirstChildElement("Label")
	if (pLable)
	{
		cout<<pLable->GetText();
	}
	
	XMLElement *nextChild = next->FirstChildElement("Question")
	while(nextChild)
	{
		findAllLabel(next);
		nextChild = nextChild->NextSiblingElement();
	}
}

未测试，你试一下吧，递归一定要只处理本层的事务，才不会混乱。

您这个有点问题，死循环了

[haierpro]

void findAllLabel(XMLElement* next)
{
    XMLElement *pLable = next->FirstChildElement("Label")
    if (pLable)
    {
        cout<<pLable->GetText();
    }
     
    XMLElement *nextChild = next->FirstChildElement("Question")
    while(nextChild)
    {
        findAllLabel(nextChild);
        nextChild = nextChild->NextSiblingElement();
    }
}