结构体赋值问题

首先定义两个结构体：
struct UdpData
{
SOCKET sockUdp;
SOCKADDR_IN addrUdp;
};
struct ScanUdpData 
{
short*   iTotalY;
long*    lTotalX;
UdpData* udpData;
int      callNum;  //udpThread收数据的次数

};

然后给结构体赋值：
pData = new UdpData;    //注意：此处要new一个UdpData，否则程序出现Access Violation错误!!
pData->sockUdp = sockUdp;
pData->addrUdp = addrUdp;
pScanUdpData = new ScanUdpData;
pScanUdpData->udpData = pData;   //将new的pData赋值给udpData

//iTotalY、lTotalX存储所有接收到的数据
short* iTotalY = (short*)malloc(MAX_DATA_LEN*sizeof(short));
long*  lTotalX = (long*)malloc(MAX_DATA_LEN*sizeof(long));
memset(iTotalY, 0, MAX_DATA_LEN*sizeof(short));
memset(lTotalX, 0, MAX_DATA_LEN*sizeof(long));
pScanUdpData->iTotalY = iTotalY;
pScanUdpData->lTotalX = lTotalX;

pScanUdpData->callNum = 0;