
#include<stdio.h> |
int N(int x)//递归 |
{ |
if(x==1) |
return x; |
else |
return x*N(x-1); |
} |
int main() |
{ |
int x,n; |
printf("please input x:\n"); |
scanf("%d",&x); |
n=N(x); |
printf("x!=%d",n); |
return 0; |
} |



