实验一

 1 #include <stdio.h>
 2 int main()
 3 {
 4   printf(" O \n");
 5   printf("<H>\n");
 6   printf("I I\n");
 7 
 8   printf(" O \n");
 9   printf("<H>\n");
10   printf("I I\n");
11 
12   return 0;
13 }

 1 #include <stdio.h>
 2 int main()
 3 {
 4      char a[] = " O ";
 5      char b[] = "<H>";
 6      char c[] = "I I";
 7 printf("%.3s %s\n",a,a);
 8 printf("%.3s %s\n",b,b);
 9 printf("%.3s %s\n",c,c);
10 
11 return 0;
12 }