分割字串(CString版本)_null

//根據多個分隔字元來分割字串

source 源串

seprator分隔字元

count分割後的子串數量

傳回值：分割後的子串

CString* ExtractStr(LPCTSTR source, LPCTSTR seprator, int *count)

{intiSubStringCount,nIndex=0;CString strSource=source,strSeperator=seprator,*pstrSubStrings;if(strSeperator.GetLength()==0){*count=0;return NULL;}//seprator中的所有分隔字元全部替換成第一個,並統計source中seprator的個數iSubStringCount =1;for(int i=0;i<strSource.GetLength();i++){if(strSource[i]==strSeperator[0])iSubStringCount++;}for(int i=1;i<strSeperator.GetLength();i++){iSubStringCount+=strSource.Replace(strSeperator[i],strSeperator[0]);}pstrSubStrings=new CString[iSubStringCount];int nNewIndex,nCount=0;while(nIndex<strSource.GetLength()){nNewIndex=strSource.Find(strSeperator[0],nIndex);if(nNewIndex>=0)pstrSubStrings[nCount++]=strSource.Mid(nIndex,nNewIndex-nIndex);elsepstrSubStrings[nCount++]=strSource.Mid(nIndex);nIndex+=pstrSubStrings[nCount-1].GetLength()+1;}*count=iSubStringCount;return pstrSubStrings;}

//釋放記憶體

void FreeStrings(CString *lpstr, int count){if(lpstr==NULL || count<=0){return;}delete[] lpstr;}

例子：

CString strSample=TEXT("aa,bb,cc,dd");int nCount=0;CString pSubStrings=ExtractStr(strSample,TEXT(","),&nCount);

....FreeStrings(pSubStrings,nCount);//用完子串後釋放記憶體