C++回调函数

#include <iostream>
#include <string>
using namespace std;


void SelectSort( int *pArray, int size ){
    if( size <= 1 )
    {
        return;
    }

    for( int i=0; i<size-1; ++i )
    {
        int min = i;
        for( int j=i+1; j<size; ++j )
        {
            if( pArray[j] < pArray[min] )
            {
                min = j;
            }
        }
        if( min != i )
        {
            int temp = pArray[i];
            pArray[i] = pArray[min];
            pArray[min] = temp;
        }
    }

}

template< typename T >
void Display( T *pArray, int size )
{
    for( int i=0; i<size; ++i )
    {
        cout.width(4);
        cout.setf( ios::left );
        cout << pArray[i];
    }
    cout << endl;
}


void Display1( const string &str )
{
    cout << str << " is very high" << endl; 
}

void Display2( const string &str )
{
    cout << str << " is very rich" << endl; 
}

void Display3( const string &str )
{
    cout << str << " is very handsome" << endl; 
}

void Show( string str, void (*dis)(const string&) )
{
    dis( str );
}

void ShowStrArray( string *str, int size, void (*dis)(const string&) )
{
    if( size <= 0 )
    {
        return;
    }

    for( int i=0; i<size; ++i )
    {
        dis( str[i] );
    }
}

int main()
{
    //cout << "Hello" << endl;

    //int pNum[] = { 2, 1, 5, 3, 4 };
    //SelectSort( pNum, 5 );
    //Display( pNum, 5 );

    //Show("Green",Display1);
    //Show("Kitty",Display2);
    //Show("Lisa",Display3);

    string pStr[] = { "Green", "Kitty", "Lisa" };
    ShowStrArray( pStr, 3, Display1 );




    ShowStrArray( pStr, 3, Display2 );
    ShowStrArray( pStr, 3, Display3 );
    return 0;
}

运行结果：