前边带0的数字字符串与纯数字的相互转化

int vodtotalnumber = 0;

TCHAR tchar_vodtotalnumber[MAX_PATH] = {0};
itoa(vodtotalnumber,tchar_vodtotalnumber,10);
int tchar_vodtotalnumberlen = strlen(tchar_vodtotalnumber);
TCHAR tchar_vodtotalnumbertemp[MAX_PATH] = {0};//最后存放字符串"0000"
strcpy(tchar_vodtotalnumbertemp,_T("0"));
if(tchar_vodtotalnumberlen<4)
{
while(tchar_vodtotalnumberlen<3)
{
strcat(tchar_vodtotalnumbertemp,_T("0"));
tchar_vodtotalnumberlen++;
}
strcat(tchar_vodtotalnumbertemp,tchar_vodtotalnumber);
}

CStdString cs_vodnumbe = _T("0000");
int vodnumber = atoi(cs_vodnumber.GetData());//vodnumber最后存放数字0