分割字符串（CString）

分割字符串（CString）2010-05-20 13:38// Test3.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "Test3.h"


#include <tchar.h>
#define _UNICODE
#define UNICODE



#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// The one and only application object

CWinApp theApp;

using namespace std;

//最后一个参数返回的是子字符串的数量
CString * SplitString(CString str, char split, int& iSubStrs);


int _tmain(int argc, TCHAR* argv[], TCHAR* envp[])
{
    int nRetCode = 0;

    // initialize MFC and print and error on failure
    if (!AfxWinInit(::GetModuleHandle(NULL), NULL, ::GetCommandLine(), 0))
    {
        // TODO: change error code to suit your needs
        cerr << _T("Fatal Error: MFC initialization failed") << endl;
        nRetCode = 1;
    }
    else
    {
        // TODO: code your application's behavior here.
        CString strHello;
        strHello.LoadString(IDS_HELLO);
        //cout << (LPCTSTR)strHello << endl;
    }

    CString str = "sssdf sfds jieuri lj122 98098";
//    CString str = "sfsfsf";
    CString* pStr;
    int iSubStrs;
    pStr = SplitString(str, ' ', iSubStrs);
    //如果子字符串的数量为1
    if (iSubStrs == 1)
    {
        //Convert CString to char
        char* pCh = (LPSTR)(LPCTSTR)str;
        printf("%s\n", pCh);       
    }
    else
    {   
        //输出所有子字符串
        for (int i = 0; i < iSubStrs; i++)
        {
            //Convert CString to char
            char* pCh = (LPSTR)(LPCTSTR)pStr[i];
            printf("%s\n", pCh);
        }
        delete []pStr;
    }
   
    system("pause");

    return nRetCode;
}


CString * SplitString(CString str, char split, int& iSubStrs)
{
    int iPos = 0; //分割符位置
    int iNums = 0; //分割符的总数
    CString strTemp = str;
    CString strRight;
    //先计算子字符串的数量
    while (iPos != -1)
    {
        iPos = strTemp.Find(split);
        if (iPos == -1)
        {
            break;
        }
        strRight = strTemp.Mid(iPos + 1, str.GetLength());
        strTemp = strRight;
        iNums++;
    }
    if (iNums == 0) //没有找到分割符
    {
        //子字符串数就是字符串本身
        iSubStrs = 1;
        return NULL;
    }
    //子字符串数组
    iSubStrs = iNums + 1; //子串的数量 = 分割符数量 + 1
    CString* pStrSplit;
    pStrSplit = new CString[iSubStrs];
    strTemp = str;
    CString strLeft;
    for (int i = 0; i < iNums; i++)
    {
        iPos = strTemp.Find(split);
        //左子串
        strLeft = strTemp.Left(iPos);
        //右子串
        strRight = strTemp.Mid(iPos + 1, strTemp.GetLength());
        strTemp = strRight;
        pStrSplit[i] = strLeft;
    }
    pStrSplit[iNums] = strTemp;
    return pStrSplit;
}