#include <iostream>
using namespace std;
_______________________
void One(float one)
{
cout<<"1"<<endl;
}
void Two(float two)
{
cout<<"2"<<endl;
}
void Three(float three)
{
cout<<"3"<<endl;
}
int main()
{
float i=1,j=2,k=3;
function = One;
function(i);
function= Two;
function(j);
function = Three;
function(k);
} 请为横线处选择合适的程序使得程序的运行结果是123 ( )

