取文本中间

_bstr_t GetMid(LPCTSTR lpSrc,LPCTSTR lpStart1,LPCTSTR lpStart2,LPCTSTR lpszEnd,BOOL IsIncludeStart = FALSE){_bstr_t _tszTmp;CString szStart1=lpStart1;CString szStart2=lpStart2;int nStartCount = 0; //开始字节数int nTmpCount =   szStart1.GetLength();if ( (lpStart1 == NULL) ||  (lpszEnd == NULL) ){return _tszTmp;}LPCTSTR lpPS = StrStr(lpSrc,lpStart1);if (lpPS == NULL){return _tszTmp;}if (lpStart2 != NULL){LPCTSTR lptmp = StrStr(lpPS,lpStart2);if (lptmp == NULL){return _tszTmp;}lpPS = lptmp;//如果开始字符串2不为空，那么开始的字节数就要设置为字符串二的字节数了nTmpCount = szStart2.GetLength();}LPCTSTR lpPE = StrStr(lpPS,lpszEnd);if (lpPE == NULL){return _tszTmp;}if (!IsIncludeStart){nStartCount = nTmpCount;}CString szRet(lpPS+nStartCount,lpPE-lpPS-nStartCount);_tszTmp = szRet;return _tszTmp;}VOID testmid(){CString szData = "<a>---<cd>safedebug</a>";CString szOut = (LPCTSTR)GetMid(szData,"<a>","<cd>","</a>");printf("%s\n",szOut);}