楼上，源代码是这样的
CFile file;
file.Open("test.dat",CFile::modeReadWrite|CFile::modeCreate);
int x1=123, x2=456,x3=789;
double y1=123, y2=456,y3=789;
file.Write(&x1,4);
file.Write(&x2,4);
file.Write(&x3,4);
file.Write(&y1,8);
file.Write(&y2,8);
file.Write(&y3,8);
file.Close();
struct part1
{
int a1;
int a2;
int a3;
double b1;
double b2;
double b3;
}bb;
file.Open("test.dat",CFile::modeRead|CFile::typeBinary);
file.Read(&bb,sizeof(part1));
file.Close();
这样得到的b1,b2,b3值是错的（极小的值）。但我把int类型和double类型分别放在两个结构体中依次去读，就得到了正确的结果。即
struct part1
{
int a1;
int a2;
int a3;
}aa;
struct part2
{
double b1;
double b2;
double b3;
}bb;
file.Open("test.dat",CFile::modeRead|CFile::typeBinary);
file.Read(&aa,sizeof(part1));
file.Read(&bb,sizeof(part2));
file.Close();
