功能实现：
#include<stdio.h>
#include<string.h>
void main()
{
    void cmp(char*x,char*y);
    char *word[]={"Follow me","Basic","Great wall","Fortran","Computer Design"};
    char *p;
    int i,j,n=5;
    for(i=0;i<5;i++)
    puts(word[i]);
    for(j=0;j<n-1;j++)
    {
        for(i=0;i<n-1-j;i++)
            if(strcmp(word[i],word[i+1])>0)
            {
             p=word[i];
            word[i]=word[i+1];
            word[i+1]=p;

            }
    }
    printf("\n");
    for(i=0;i<5;i++)
    puts(word[i]);
}