#include<stdio.h>
int main()
{
int i=0,n=0;ret=1;
scanf_s("%d",&n);//scanf_s作用是避免在编译器中出现不安全影响代码编译
for (i = 1; i <= n; i++)
{
ret = ret * i;
}
printf("%d\n", ret);
return 0;
}
用于输入n的阶乘利用for语句解决
求1~10阶乘的和举例:
#include<stdio.h>
int main()
{
int n = 0, sum = 0, ret = 1,i=0;
for (n = 1; n <= 10; n++)
{
ret = 1;
for (i = 1; i <= n; i++)
{
ret = ret * i;
}
sum = sum + ret;
}
printf("%d", sum);
return 0;
}