一下程序段运行后,变量sum的值是sum=0i=0For i=2 To 10 Step 2sum=sum+iNext i怎么算的,列数学算式给我.

一下程序段运行后,变量sum的值是sum=0i=0For i=2 To 10 Step 2sum=sum+iNext i怎么算的,列数学算式给我.
一下程序段运行后,变量sum的值是
sum=0
i=0
For i=2 To 10 Step 2
sum=sum+i
Next i
怎么算的,列数学算式给我.

一下程序段运行后,变量sum的值是sum=0i=0For i=2 To 10 Step 2sum=sum+iNext i怎么算的,列数学算式给我.
sum = 0 + 2
sum = 2 + 4
sum = 6 + 6
sum = 12 + 8
sum = 20 + 10
sum = 30