认识标准库bitset类型

#include
#include
#include
#include
#include
#include
#include
using namespace std;
const int maxn=16;

int main()
{
? ? bitset<16> b2;
? ? cout<<"b2.any() = "<? ? cout<<"b2.none()= "<? ? cout<<"b2.size()= "<? ? cout<<"b2[4]= "<? ? cout<<"b2.test(4)= "<? ? b2.set() ; cout<? ? cout<<"b2.any() = "<? ? cout<<"b2.none()= "<? ? cout<<"b2.size()= "<? ? cout<<"b2[4]= "<? ? cout<<"b2.test(4)= "<? ? b2.reset() ; cout<? ? cout<<"b2.any() = "<? ? cout<<"b2.none()= "<? ? cout<<"b2.size()= "<? ? cout<<"b2[4]= "<? ? cout<<"b2.test(4)= "<? ? b2.set(4) ; cout<? ? cout<<"b2[4]= "<? ? cout<<"b2.test(4)= "<? ? return 0;
}