typedef struct Info
{
	char name[5];
	char addr[10];
	int age;
	double salary;
}tInfo, *pInfo;
//tInfo为结构体Info的别名

struct stTest
{
	char name[5];
	char addr[10];
	int age;
	double salary;
};

int _tmain(int argc, _TCHAR* argv[])
{
	//结构体指针的创建、置空、赋值
	pInfo info = new tInfo();
	memset(info, 0 ,sizeof(tInfo));
	info->age = 10;
	strcpy(info->name, "zhou");
	strcpy(info->addr,"shandong");
	info->salary = 123.123;

	//指针的大小为4，结构体的大小采用对齐模式，32位下是4字节对齐
	//下面的计算为：32 = 8+12+4+8
	int a = sizeof(tInfo);//32
	int b = sizeof(Info);//32
	int c = sizeof(pInfo);//4
	int d = sizeof(info);//4

	//结构体转为string
	string str;
	str.assign((const char*)info, sizeof(tInfo));
	//把string转为结构体
	pInfo get = new tInfo();
	memcpy(get, str.c_str(), str.size());


	//结构体对象创建、置空、赋值
	stTest st;
	memset(&st, 0, sizeof(stTest));
	strcpy(st.addr, "shandong");
	st