阅读如下所示C程序，回答问题： includestdio.

include<stdio.h>
int Power(inta，int b);
int main(void){ 
   intx，y，z；
   printf（"Input two numbers：");
   scanf("%d %d",&x,&y);
   if(x>0&&y>0)
      z=Power(x,y)·
   else
      z=0;
   printf("The result is %d.\n",z);  }

int power(int a，intb）{
  if(a<b)    
    return 0;
  else
    return 1+Power(a/b,b）;
}