#include "iostream"
using namespace std;
union A
{
struct B
{
unsigned int x1:2;
unsigned int x2:3;
unsigned int x3:3;
};
char a;
B b;
};
int main(int argc, char *argv[])
{
A a;
a.a=100;
cout<<a.b.x1<<endl<<a.b.x2<<endl<<a.b.x3<<endl;
system("pause");
return 0;
}
//结果 0 1 3
