Question

vb计算1到1000之间既能被3整除,又能被7整除的个数，以及这些数的和？

Answer 1

Private Sub Command1_Click()
    Dim i As Integer, sum As Integer, n As Integer
    n = 0: sum = 0
    For i = 1 To 1000
        If i Mod 3 = 0 And i Mod 7 = 0 Then
            sum = sum + i
            n = n + 1
        End If
    Next i
    
    Print "1到1000之间既能被3整除,又能被7整除的个数是：" & n & "个 ，这些数的和是：" & sum
End Sub

Answer 2

<%
Dim t,s,r,l't是除3的余数，s是除以7的余数，r是可以整除3和7的数的和，l每十个数就换了
for i=1 to 1000 step 1
t = i mod 3
s = i mod 7
l = i mod 10
if t=0 and s=0 then
l = l+1
if (l mod 10)=0 then
response.write "<br/>"
end if
response.write i&" "
r=r+i
end if

Next
response.write "<br/>r="&r

%>

Answer 3

Private Sub Command1_Click()
For i = 1 To 1000
If i Mod 3 = 0 Then s = s + 1
If i Mod 7 = 0 Then n = n + 1
Next i
Print "被3除= " & s
Print "被7除= " & n
End Sub