C primer plus 练习题 第七章

1.

 #include <stdio.h>

 #define SPACE ' '
 #define NEWLINE '\n'

 int main()
 {
     int spaces,newlines,others;
     char ch;
     spaces = newlines = others = ;
     while((ch=getchar())!= '#')
     {
         /*
         if(ch == SPACE)
         {
             spaces++;
         }else if(ch == NEWLINE)
         {
             newlines++;
         }else
         {
             others++;
         }*/
         switch(ch)
         {
         case SPACE:
             spaces++;
             break;
         case NEWLINE:
             newlines++;
             break;
         default:
             others++;
             break;
         }
     }
     printf("spaces=%d, newlines=%d, others=%d \n", spaces, newlines, others);
     getchar();
     return ;
 }

2.

 #include <stdio.h>

 int main()
 {
     int i;
     char ch;
     printf("quit input #");
     for(i=; (ch=getchar())!='#'; i++)
     {
         printf("%c -- %d \t", ch, ch);
         if(i% == ){
             printf("\n");
         }
     }
     getchar();
     return ;
 }