Question

C语言练习题求助……过程写出来，谢谢。

Answer 1

1. #include <stdio.h>

2. void main()

3. {

4.         char cx=0;

5.         char front=' ';

6.         while(-1!=cx)

7.         {

8.                 if(cx!=' ')

9.                         putchar(cx);

10.                 if(cx==' ')

11.                   if(front!= ' ')

12.                      putchar(cx);

13.                 scanf("%c",&cx);

14. 
    

15.         }

16. }

编译了下好像可以实现，凑合用吧！

Answer 2

1 (cx = getchar()) != EOF
2 front = cx;