程序代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define SIZE 1000

int cmp(const void *a,const void *b)
{
    return strcmp((char *)a,(char *)b);//比较字符串的大小 
}

int main()
{
    char bookName[SIZE][100];
    int len = 0, i;
    while( scanf("%s", bookName[len]) != EOF)//输入
    {
        len++;
    }
    qsort(bookName,len,sizeof(bookName[0]), cmp);//排序
    for(i=0;i<len;i++)
    {
        printf("%s\n",bookName[i]);
    }
    return 0;
}

程序代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define INITSIZE 5
#define LINESIZE 101
int
getbookname( char *dst, int size );

int
main( void )
{
    char **s, **temp;
    char t[ LINESIZE ];
    int ix, i, j;
    int currentsize;
    int ch;

    currentsize = INITSIZE;

    s = ( char ** )malloc( currentsize * sizeof( char * ) );
    if( NULL == s )
        return EXIT_FAILURE;
    for( ix = 0; ix < currentsize; ++ix )
    {
        s[ ix ] = ( char * )malloc( LINESIZE * sizeof( char ) );
        if( NULL == s[ ix ] )
            return EXIT_FAILURE;
    }

    for( ix = 0;;++ix )
    {
        if( ix == currentsize )
        {
            currentsize += INITSIZE;
            temp = ( char ** )realloc( s, currentsize * sizeof( char * ) );
            if( NULL == temp )
                return EXIT_FAILURE;
            s = temp;
            for( i = ix; i < currentsize; ++i )
            {
                s[ i ] = ( char * )malloc( LINESIZE * sizeof( char ) );
                if( NULL == s[ i ] )
                    return EXIT_FAILURE;
            }
        }
        if( EOF == ( ch = getbookname( s[ ix ], LINESIZE ) ) )
            break;
    }

    for( i = 0; i < ix; ++i )
        for( j = i + 1; j < ix; ++j )
            if( 0 < strcmp( s[ i ], s[ j ] ) )
            {
                strcpy( t, s[ i ] );
                strcpy( s[ i ], s[ j ] );
                strcpy( s[ j ], t );
            }

    for( i = 0; i < ix; ++i )
        printf( "%s", s[ i ] );
    return 0;
}


int
getbookname( char *dst, int size )
{
    int ch;
    int ix;

    for( ix = 0; ix < size - 1 && EOF != ( ch = getchar() ) && '\n' != ch; ++ix )
        dst[ ix ] = ch;
    if( '\n' == ch )
        dst[ ix++ ] = ch;
    dst[ ix ] = '\0';

    return ch;
}