X=5 FOR i=1 to 20 step 2 x=x+i\5 next iX=5FOR i=1 to 20 step 2x=x+i\5next i

X=5 FOR i=1 to 20 step 2 x=x+i\5 next iX=5FOR i=1 to 20 step 2x=x+i\5next i
X=5 FOR i=1 to 20 step 2 x=x+i\5 next i
X=5
FOR i=1 to 20 step 2
x=x+i\5
next i

X=5 FOR i=1 to 20 step 2 x=x+i\5 next iX=5FOR i=1 to 20 step 2x=x+i\5next i
先说 x=x+i\5,实际上相当于 x = x + (i \ 5) ,因为整除运算优先级高于加法运算.
再说循环,i 的值依次为 1,3,5,7,9,11,13,15,17,19
x 的初始值是5,代进去加一下就能知道结果了.