求100以内的素数
```vb
Private Sub Form_Click()
Dim i As Integer
For i = 2 To 100
Dim j As Integer
For j = 2 To i - 1
If i Mod j = 0 Then
Exit For
End If
Next j
If j = i Then
Print i
End If
Next i
End Sub
```
从键盘输入任意长度的字符串,将字符顺序倒置
```vb
Private Sub Command1_Click()
Dim a$
a = InputBox("输入字符串")
Dim n%
n = Len(a)
Dim c$
c = ""
For i = n To 1 Step -1
c = c & Mid(a, i, 1)
Next i
Print c
End Sub
```
计算0~200之间所有能被11整除的数之和
```vb
Private Sub Form_Click()
Dim sum As Integer
For i = 0 To 200
If i Mod 11 = 0 Then
sum = sum + i
End If
Next i
Print sum
End Sub
```
输入一年份,判断它是否为闰年,并显示有关信息
```vb
Private Sub Command1_Click()
Dim year As Integer
year = InputBox("输入年份")
If (year Mod 4 = 0 And year Mod 100 <> 0) Or (year Mod 400 = 0) Then
MsgBox year & "年是闰年"
Else
MsgBox year & "年是平年"
End If
End Sub
```
已知x,y,z个变量中存放了3个不同的数,比较它们的大小并进行调整,使得x
```vb
Private Sub Command1_Click()
Dim x, y, z As Integer
InputBox "输入第一个数"
x = Val(InputBox("输入第二个数"))
InputBox "输入第三个数"
z = Val(InputBox("输入第三个数"))
If x >= y Or y >= z Then
MsgBox "输入的数需要不同且按升序排列"
Else
If x > y Then
y = x
End If
If y > z Then
z = y
End If
MsgBox "排序后的数为: " & x & ", " & y & ", " & z
End If
End Sub
```
这些示例代码涵盖了VB编程的一些基本概念,包括变量声明、条件语句、循环语句、函数等。通过学习和练习这些示例,你可以逐步掌握VB编程的技巧。