怎么用IHTMLDocument2接口获取<span class="EX">*****</span>的数据啊
如题，我不知道怎么解决

[解决办法]
Using the Document Interface
[解决办法]
1. 用 IHTMLDocument2::all 获得所有元素；
2. 用 IHTMLElementCollection::tags 获得标签为 span 的元素；
3. 用 IHTMLElement::className 获得 class 名为 EX 的元素；
4. 用 IHTMLElement::innerText 获得文本。
[解决办法]

NHtm::GetSpanElement(pDocument, &pElement, "EX", NULL);
pElement->get_innerHTML(bStrText.GetAddress());

C/C++ code

BOOL    NHtm::GetSpanElement(IHTMLDocument2 *pDocument, IHTMLElement **ppElement, CHAR *pClassName, CHAR *pSpanId){    IHTMLElementCollection *    pAllElem = NULL;    IHTMLElement *                pElement = NULL;    IDispatch *                    pElemDisp = NULL;    HRESULT            hr = S_FALSE;    BOOL            bRetVal = FALSE;    int                i;    _bstr_t            bStrTagName;    _bstr_t            bStrClassName;    _bstr_t            bStrSpanId;    LONG            lCount;    _variant_t        ElemName;    _variant_t        ElemIndex;    *ppElement = NULL;    if(pDocument == NULL)        return FALSE;    hr = pDocument->get_all(&pAllElem);    if(FAILED(hr) || pAllElem == NULL)        return FALSE;    hr = pAllElem->get_length(&lCount);    if(FAILED(hr))        goto Done;    for(i=0; i<lCount; i++)    {        ElemName = i;        ElemIndex = i;        hr = pAllElem->item(ElemName, ElemIndex, &pElemDisp);        if(FAILED(hr) || pElemDisp == NULL)            goto Done;        hr = pElemDisp->QueryInterface(IID_IHTMLElement,(void**)&pElement);        if(FAILED(hr))            goto Done;        hr = pElement->get_tagName(bStrTagName.GetAddress());        if(FAILED(hr))            goto Done;        if(stricmp(bStrTagName, "SPAN") != 0)            goto DoNext;        if(pClassName)        {            hr = pElement->get_className(bStrClassName.GetAddress());            if(FAILED(hr))                goto Done;            if(bStrClassName.length() == 0)                goto DoNext;            if(stricmp(bStrClassName, pClassName) != 0)                goto DoNext;        }        if(pSpanId)        {            hr = pElement->get_id(bStrSpanId.GetAddress());            if(FAILED(hr))                goto Done;            if(bStrSpanId.length() == 0)                goto DoNext;            if(stricmp(bStrSpanId, pSpanId) != 0)                goto DoNext;        }        break;DoNext:        if(pElemDisp)            pElemDisp->Release();        if(pElement)            pElement->Release();    }    *ppElement = pElement;    bRetVal = TRUE;Done:    if(pAllElem)        pAllElem->Release();    if(pElemDisp)        pElemDisp->Release();    return bRetVal;}