写出下列程序的输出结果
#include <string.h>
#include <stdio.h>
int main (void)
{
char a[] = "Who am I ?";
char b[20] , *p1, *p2;
p1 = a; p2 = b;
for(; *p1 != '\0'; p1++, p2++)
*p2 = *p1;
*p2 = '\0';
printf("string a is: %s\n", a);
printf("string b is: ");
p2 = b;
puts(p2);
return 0;
}
