vb程序设计实例100 vb基础编程100例
Private Sub Command1_Click() Dim a(2 To 99) As Boolean Text1.Text = ＂100以内的孪生素数:＂ & vbCrLf For i = 2 To 99 a(i) = True Next i For i = 2 To 99 If a(i) Then j = i + i Do While j
假如那个进度条名字为:ppp那么要让进度条的进度在50% 设置ppp.max=100,ppp.min=0 (进度条最大值100 最小值0 )ppp.value = 50 (进度条的当前值为50%)这样就.
用vb编程实现随机产生一个100到999之间的随机数,并将此数逆序输出dim b as integer dim d as integer b = Rnd() * 900 + 100 d=StrReverse(b)
如何用Vb程序设计来自动生成100以内的两位随机数加法题!!Dim zhi1 as Integer Dim zhi2 as Integer zhi1 =Int(100*Rnd) zhi2 =Int(100*Rnd) Print “结果算式:＂ & zhi1 & “+＂ & zhi2 & “=＂ & zhi1 + zhi2 //把上面代码的过程放到一个按钮事件就可以了. Rnd是会随机生成一个大于等于0小于1的一个随机单精度数,int((最大数-最小数)*Rnd-最小数)
用VB编写程序,找出100 - 999间所有“水仙花数”所谓“水仙花数”指一个三位数,其各位数字立方和等于该数本身. 求答案Private Sub Form_Load() Dim str As String Dim j As Integer i = 1 Do While i < 1000 Dim a, b, c, d As Integer For a = 0 To 9 For b = 0 To 9 For c = 0 To 9 If a + b * 10 + c * 100.
VB编程求解100以内的所有素数,每5个一行在窗体上输出.判断一个整数是否为素数的通用过程: Dim i as integer prime = True For i =2 to sqr(n) if n Mod i =0 Then prime = False Exit For End if Next i 100以内的素数: For I = 100 .
vb编程代码大全1.数值型函数: abs(num): 返回绝对值 sgn(num): num>0 1; num=0 0; num<0 -1;. int(-99.2)=100 fix(num): 取整 fix(99.8)=99; fix(-99.2)=99 round(num,n): 四舍五入取小.
用vb编程 输出100以内素数 每行5个输出 在线等,心切,谢谢啦Private Sub Form_Click() For a = 1 To 100 For b = 2 To a - 1 If a Mod b 0 Then c = True Else c = False Exit For End If Next If c = True Then If d Mod 5 = 0 And d 0 Then Print Print a; d = d + 1 End If Next PrintEnd Sub 是这样么?
vb 程序设计闹钟dim cang_2009 as string private sub form_load() timer1.enabled = false timer1.interval = 100 end sub private sub command1_click() cang_2009 = format(inputbox(＂请输入.
vb编程代码Private Sub Command1_Click()Dim a, b, c, d As IntegerFor a = 0 To 10 For b = 0 To 20 For c = 0 To 50 For d = 0 To 100 If 10 * a + 5 * b + 2 * c + d = 100 And a + b + c + d = 20 Then Print ＂a=＂ & a & ＂,b=＂ & b & ＂,c=＂ & c & ＂,d=＂ & d End If Next d Next c Next bNext aEnd Sub