程序代码：

#include"stdio.h"
#include"string.h"
#define N 100

main()
{ int i,j,num=0,upr=0,lwr=0,space=0,other=0;
char a[3][N];
     gets(a);
     for(i=0;i<=2;i++)
         for(j=0;j<=strlen(a);j++)
         {
             if(a[i][j]>=0&&a[i][j]<=9)
                 num++;
             else if(a[i][j]>=65&&a[i][j]<=90)
                  upr++;
             else if(a[i][j]>=97&&a[i][j]<=122)
                 lwr++;
             else if(a[i][j]==" ")
                 space++;
             else other++;
         }

 printf("%3d%3d%3d%3d%3d%3d",num,upr,lwr,space,other);
}