Private Sub Form_Click()
Dim N As Integer, x As Integer, i As Integer, k As Integer, s As Integer
N = 0
s = 0
For x = 101 To 199 Step 2 '外循环直接排除偶数,只对奇数进行判断
i = 2: k = Int(x / 2)
Do While i <= k '内循环判断x是否为素数
If x Mod i = 0 Then Exit Do '若x被i整除,则x不是素数,结束DO循环
i = i + 1
Loop
If i > k Then '正常退出内循环的x值是素数
s = s + x
N = N + 1 '统计素数的个数
If N Mod 3 = 0 Then Print x Else Print x, '每输出5个数就换行
End If 注;此处x后面有无逗号,直接影响输出效果!
Next x
Print vbCrLf; "素数共" & N & "个" ' vbCrLf表示换行的意思
Print vbCrLf; "素数和为" & s
End Sub
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