tcpl 1-10

习题1-10

将输入中的符号替换为可见并输出

include <stdio.h>

/* Run this program on itself (this file) and the following string " "

• will be only one blank long.
  */

main ()

{
int c;

while ((c = getchar()) != EOF) {

    if (c == '\t')
         printf("\\t");
     else if (c == '\b')
         printf("\\b");
     else if (c == '\\')
         printf("\\\\");

    else/*避免重复输出*/
         putchar(c);

}

}