调试下 熟悉下Vi

#include
int display1 (char *string);
int display2 (char *string);

int main ()

{
    char string[]="Embedded linux";
    display1 (string);
    display2 (string);
}
int display1 (char *string)
{
printf ("The original string is %s \n", string);
}
int display2 (char *string1)
{char *string 2;
int size,i;
size = strlen (string1);
string2=(char *) malloc (size + 1);
for (i =0;i < size;i++)
      string2[size -i] = string1[i];
string2[size+1] = '';
printf ("The string afterward is %s\n",string2);
}