那为高手能帮我解决啊？ 求 1!+2!+3!+4!+....+n! 的和？

int sum;//阶乘和
int a=1;//单个数的阶乘
int n;
scanf(%d,&n);

int i;
if(n=1)printf(a);
else{
sum = 1;
for(i=2;i<=n;i++){
a = i * a;//求当前数的阶乘
sum = a + sum;//求当前数为止的阶乘和
}
printf("%d",sum);
}

额...4行少了个引号...

using System;

class Program
{
    public int acmount(int value)
    {

        if (value == 1)
            return 1;
        else
            return acmount(value - 1) * value;
    }
   
}

class TestProgram
{

    static void Main()
    {
        int value;
        Console.WriteLine("Enter a value:");
        value = Convert.ToInt32(Console.ReadLine());

        Program p = new Program();

        Console.WriteLine(p.acmount(value));
        Console.ReadKey();
    }
}


公式:n!=n*(n-1)! 阶乘的计算方法阶乘指从1乘以2乘以3乘以4一直乘到所要求的数

static void Main(string[] args)
        {
            Console.WriteLine(GetValues(5));
            Console.ReadLine();

        }
        public static int GetValues(int n)
        {
            int Num = 0;
            for (int i = 0; i < n; i++)
            {
                Num += Foo(n);
            }
            return Num;
        }
        public static int Foo(int n)
        {
            if (n > 0)
            {
                return Foo(n - 1) * n;
            }
            else
            {
                return 1;
            }
        }

#include(stdio.h)
void main()
{
    long sum;   //用来存放总和
    int a=1,n;//a存放每个数的阶乘
    int i,j;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
        {
            a=a*j; //求每个数的阶乘
        }
        sum+=a;
    }
    printf("1!+2!+3!+……+n！=%ld",sum);
}

#include <stdio.h>
main()
{
    int i,j;
    int s=1;
    int total=0;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
            s=s*j;
        total=total+s;
    }
    printf("%d",total);
}

class Test
{
     static void main(string[] args)
    {
        int sum = 0;
        for(int i = 1; i < 3; i++){
            for(int j = 1; j <= i; j++)
                sum = i * j;
            sum += sum;
        }
        Console.WriteLine("结果为：" + sum);
    }   
}

[ 本帖最后由 封闭 于 2010-4-4 15:45 编辑 ]

谢谢各位！受益匪浅啊！

把分数给分了