Question

求 1000以内的完全数 的VB代码！！

Answer 1

Option Explicit

Option Base 1

Private Sub command1_click()

Dim I As Integer, A() As Integer

Dim K As Integer, sum1 As Integer, sum2 As Integer

For I = 2 To 1000

sum1 = 0: sum2 = 0

Call fctor(I, sum1)

Call fctor(sum1, sum2)

If sum2 = 2 * I Then

K = K + 1

ReDim Preserve A(K)

A(K) = I

End If

Next I

For I = 1 To K

Text1.Text = Text1.Text & Str(A(I)) & " "

Next I

End Sub

Private Sub fctor(N As Integer, S As Integer)

Dim I As Integer, J As Integer

Do While I <= N

I = I + 1

If N Mod I = 0 Then

S = S + I

End If

Loop

End Sub

Answer 2

dim i,j,a as integer
for i=2 to 1000
a=0
for j=1 to i-1
if i mod j=0 then a=a+j'判断j是否能整除i，如果能，则a增加j
next j
if a=i then print i'判断i是否是完全数，如果是，则输出i
next i

运行输出：
6
28
496

Answer 3

哈哈
GamesBug.NO2身手好快！我刚刚复制好代码，你已经提交了……