s=1+1+2+1+2+3+.............+1+2+3+4......100

靠，这不跟C一样嘛

定义两个变量

s=0
n=0
for i=1 to 100
n=0
for j=1 to i
n=n+i
next n
s=s+n
next i

不会vfor,用java写，思想是是一样的
public int he(int num) throws Exception
{
int sum=0;
int k=0;
for(int i=0;i<num;i++)
{
k=k+i;
sum=sum+k;
}
return sum;
}

用VB:
dim s as long
dim i as long

s=0
for i=1 to 100
s=s+i
next i
msgbox s