11-3-1.cpp

学习c++的ppt

#include <iostream.h>
void showflags(long f)
{  for(long i= 0x4000; i; i = i>>1)   
        cout <<((i&f)?"1":"0");
    cout << endl;
}
void main()
{   const int i = 156;
    char c1 = 'a', c2 = 'b';
    showflags(cout.flags());
    cout<<"i="<<i<<",c1="<<c1<<",c2="<<c2<<endl;
    showflags(cin.flags(cin.flags()&~ios::skipws));
    cin>>c1>>c2;
    showflags(cin.flags());    
    cout<<"i="<<i<<",c1="<<c1<<",c2="<<c2<<endl;

    showflags(cout.flags(cout.flags()|ios::uppercase|ios::hex));
    showflags(cout.flags());    
    cout<<"i="<<i<<",c1="<<c1<<",c2="<<c2<<endl;
}