vb编写程序，计算2×4×6×...×20。

dim i as interger
dim sum as float
sum=0
for i=2 to 20 step 2
sum=sum*i
next i

dim i as interger
dim sum#
sum=1
for i=2 to 20 step 2
sum=sum*i
next i
我是看到上面的答案错了，改了一下，呵呵，超过十点了.

dim i as interger
dim sum as float
sum=0
for i=2 to 20 step 2
sum=sum*i
next i