8.19.cpp

c入门代码大全

//使用寄存器变量
#include<stdio.h>
int main()
{
    long fac(long);
    long i,n;
    scanf("%ld",&n);
    for(i=1;i<=n;i++)
      printf("%ld!=%ld\n",i,fac(i));
    getchar();
    getchar();
} 
long fac(long n)
{
     register long i,f=1;
     for(i=1;i<=n;i++)
       f=f*i;
     return(f);
}