求1+1*2+1*2*3+......+1*2*3......n程序

严重怀疑楼主到底学什么的哦

写程序你起码得让大家知道你要用什么语言哦

换个主机电源线

main(){
int i,n,m=1,s=0;
scan("%d",&n);
for (i=1;i<=n;i++)
{
m*=i;
s+=m;
}
printf("sum=%d\n",s);
}

10 input n
20 s=0
25 k=1
30 for i=1 to n step 1
40 k=k*i
50 s=s+k
60 next i
70 print "s=";s
80 end

function abs(n)
y=0
For x = 1 To n
z=1
for i=1 to x
z=z*i
next
y=y+z
Next
abs=y
end function