escape.c

来自「c21Examples.rar」· C语言 代码 · 共 61 行

/* Demonstration of frequently used escape sequences */

#include <stdio.h>

#define QUIT  3

int  get_menu_choice( void );
void print_report( void );

int main( void )
{
    int choice = 0;

    while (choice != QUIT)
    {
       choice = get_menu_choice();

       if (choice == 1)
           printf("\nBeeping the computer\a\a\a" );
       else
       {
           if (choice == 2)
               print_report();
       }
    }
    printf("You chose to quit!\n");

    return 0;
}

int get_menu_choice( void )
{
    int selection = 0;

    do
    {
        printf( "\n" );
        printf( "\n1 - Beep Computer" );
        printf( "\n2 - Display Report");
        printf( "\n3 - Quit");
        printf( "\n" );
        printf( "\nEnter a selection:" );

        scanf( "%d", &selection );

     }while ( selection < 1 || selection > 3 );

     return selection;
}

void print_report( void )
{
     printf( "\nSAMPLE REPORT" );
     printf( "\n\nSequence\tMeaning" );
     printf( "\n=========\t=======" );
     printf( "\n\\a\t\tbell (alert)" );
     printf( "\n\\b\t\tbackspace" );
     printf( "\n...\t\t...");
}