1.编写计算下列函数的程序，结果在窗体上打印出来。自变量x，y的值用InputBox函数输入。

Dim x As Single, y As Single

x = InputBox("请输入x", "请输入x")

y = InputBox("请输入y", "请输入y")

If (x < 0) And (y < 0) Then

    Print 2 * x + 6 * y

ElseIf (x > 0) And (y > 0) Then

    Print x - y

Else: Print 0

End If

2.从键盘上输入月份的值（即1-12之间的整数），打印出该月份的季节。12月、1月和2月为冬季，3月、4月和5月为春季，其余类推。例如，输入7，则打印出SUMMER。

Dim month As Integer

month = InputBox("请输入月份", "请输入月份")

Select Case month

    Case 12, 1, 2

        Print "WINTER"

    Case 3, 4, 5

        Print "SPRING"

    Case 6, 7, 8

        Print "SUMMER"

    Case 9, 10, 11

        Print "AUTUMN"

    End Select

3. 设sum=1¹×2²×3²×…×n²，求sum不大于100000时最大的n。

Dim sum As Long, n As Integer

sum = 1

n = 1

Do

    n = n + 1

    sum = sum * n * n

Loop While sum <= 100000

Print n - 1

4. 输出101～500之间的所有奇数，每行显示10个奇数，并输出奇数之和。

Dim sum As Long, i As Integer

sum = 0

For i = 101 To 500 Step 2

    Print i;

    sum = sum + 1

    If 0 = (sum Mod 10) Then Print

Next i

Print "sum="; sum

5．换零钱问题。

   如果要将一元人民币换成零钱（换成1分，2分，5分），共有多少种换法？

Dim j As Integer, i As Integer, sum As Integer

sum = 0

For i = 0 To 100 Step 5

    For j = 0 To 100 - i Step 2

        sum = sum + 1

    Next j

Next i

Print "sum="; sum

6. 从键盘输入一行字符，分别统计出其中字母、数字和其他字符的个数；

Dim a(255) As Integer, l As Integer, i As Integer

Dim s As String

s = InputBox("请输入字符", "请输入字符")

l = Len(s)

For i = 0 To 255

    a(i) = 0

Next i

For i = 1 To l

    a(Asc(Mid(s, i, 1))) = a(Asc(Mid(s, i, 1))) + 1

Next i

For i = 0 To 255

    If a(i) <> 0 Then Print Chr(i); a(i)

Next i

7．设计一个程序，求下式s的值，其中n的值用inputbox函数输入。

Dim n As Integer, i As Integer, s As Single, f As Integer, v As Long

n = InputBox("请输入n", "请输入n")

f = -1

s = 1

v = 1

For i = 2 To n

    v = v * i

    s = s + f * (i / v)

    f = -f

Next i

Print s

8. 输入x的值，计算1n(x+sqr(1+x*x))，其中-1<x<1。直到最后一项的绝对值小于10^-5为止。程序要求：先对x值进行检查，是否满足-1<x<1，若不满足该条件，则重新输入x值。

Dim x As Single, i As Integer, ln As Single, f As Integer, v As Single, e As Long

Dim l As Integer

x = InputBox("请输入x", "请输入x")

While x < -1 Or x > 1

    x = InputBox("请重新输入x", "请输入x")

Wend

ln = x

v = x

f = -1

l = 1

e = 1

While Abs(v) > (10 ^ -5)

  v = 1

  For i = 1 To l Step 2

    v = v * (i / (i + 1))

  Next i

  e = e * (i - 1) * i

  v = v * f * ((x ^ i) / e)

  ln = ln + v

  f = -f

Wend

Print ln

9. 找出所有小于或等于100的自然数对。自然数对是指两个自然数的和与差都是平方数。如16与20的和16+20=36，16与20的差20-16=4都是平方数，则16和20称自然数对。

Dim i As Integer, j As Integer, sum As Integer, margin As Integer, sumnumber As Integer

sumnumber = 0

For i = 0 To 99

    For j = i + 1 To 100

         sum = i + j

         margin = j - i

         If 0 = (Sqr(sum) - Int(Sqr(sum))) Then

            If 0 = (Sqr(margin) - Int(Sqr(margin))) Then sumnumber = sumnumber + 1

        End If

    Next j

Next i

Print sumnumber

10. 编写程序，打印如下图形，层数n由键盘输入。(10>n>0)

Dim i As Integer, n As Integer, j As Integer

n = InputBox("请输入n", "请输入n")

For i = n To 1 Step -1

    For j = 2 To i

        Print " ";

    Next j

    For j = 1 To 2 * (n - i + 1) - 1

        Print "*";

    Next j

    Print

Next i

For i = 2 To n

    For j = 2 To i

        Print " ";

    Next j

    For j = 1 To 2 * (n - i + 1) - 1

        Print "*";

    Next j

    Print

Next i