重写以下程序，以使它表现相同的行为但不使用continue或goto。
q
c
g
b
c
g
b
#include <stdio.h>
int main (void)
{
char ch;
while ((ch = getchar())!= '#')
{
if (ch == '\n')
continue;
printf ("Step 1\n");
if (ch == 'c')
continue;
else if (ch == 'b')
break;
else if (ch == 'g')
goto laststep;
printf ("Step 2\n");
laststep: printf ("Step 3\n");
}
printf ("Done\n");
return 0;
} 
#include <stdio.h> int main (void) { char ch; while ((ch = getchar ()) != '#') { if (ch != '\n') { printf ("Step 1\n"); if (ch == 'b') break; else if (ch != 'c') { if (ch != 'g') printf ("Step 2\n"); printf ("Step 3\n"); } } } printf ("Done\n"); return 0; }