#include<iostream>
using namespace std;
void fixpoint(int i);
void main()
{
  char a,b,c;
  cout<<"enter a,b\n";
  cin>>a>>b;
  cout<<"enterr c"<<endl;
  c='h ';//就是在这行多了个空格，结果输出就成了问题
  cout<<a<<b<<c<<endl;
  cout<<"that is all\n";


}
void fixpoint(int i)
{
 cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(3);
}