vb点虐 怎么做计算器 vbs做计算器

有关vb点虐 制作计算器的问题

判断吧，如果点击+按肢链钮，则一个全局变量为1，-按钮，则全闹陵局变量为2.以此类推，历弯孙然后if或case判断哪个数，如果为1，就两个数相加。

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VB点虐 作业，用VB做一个简单的计算器.

我用VB做的你看能不能用

Public b

Public c

Public d

Public e

Public f

Private Sub Command14_Click()

d = ""

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Exit Sub

'c = Text1.Text

If b = "" Then Exit Sub

If e = "+" Then

d = f + b

Else

If e = "-" Then

d = f - b

Else

If e = "*" Then

d = f * b

Else

If e = "/" Then

If b = 0 Then

MsgBox "被除数不能为零！"

Exit Sub

End If

d = f / b

Else

MsgBox "错误操作！"

End If

End If

End If

End If

Text1.Text = d

b = ""

c = ""

e = ""

End Sub

Private Sub Command15_Click()

Text1.Text = ""

b = ""

c = ""

d = ""

e = ""

f = ""

End Sub

Private Sub Form_Load()

Text1.Text = ""

End Sub

Private Sub Command1_Click()

'判断开头有运算符就清零

If Text1.Text = "握戚+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

'判断开头有0就禁止输入数字

If Text1.Text = "0" Then

Else

a = 1

'发现运算结果就清零

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text '得到当前操作数

End Sub

Private Sub Command2_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 2

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command3_Click()

If Text1.Text = "+" Or Text1.Text = "帆皮局-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 3

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command4_Click()

If Text1.Text = "态让+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 4

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command5_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 5

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command6_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 6

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command7_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 7

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command8_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 8

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command9_Click()

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

If Text1.Text = "0" Then

Else

a = 9

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

End If

b = Text1.Text

End Sub

Private Sub Command10_Click()

If b = "" Then Exit Sub

a = "+"

e = "+"

f = b

Text1.Text = ""

Text1.Text = Text1.Text a

End Sub

Private Sub Command11_Click()

If b = "" Then Exit Sub

f = b

a = "-"

e = "-"

Text1.Text = ""

Text1.Text = Text1.Text a

End Sub

Private Sub Command12_Click()

If b = "" Then Exit Sub

a = "*"

e = "*"

f = b

Text1.Text = ""

Text1.Text = Text1.Text a

End Sub

Private Sub Command13_Click()

If b = "" Then Exit Sub

a = "/"

e = "/"

f = b '把操作数1提取出来

Text1.Text = ""

Text1.Text = Text1.Text a

End Sub

Private Sub Command16_Click()

'判断有运算符就清零

If Text1.Text = "+" Or Text1.Text = "-" Or Text1.Text = "*" Or Text1.Text = "/" Then Text1.Text = ""

'判断有零和空值就禁止输入0

'发现运算结果就清零

If d "" Then Text1.Text = "": d = ""

If Text1.Text = "0" Then

Else

a = 0

If d "" Then Text1.Text = "": d = ""

Text1.Text = Text1.Text a

b = Text1.Text

End If

End Sub

如何用vb编写简单计算器

不知道你想要哪种，偶是新手，只会最简单的

首先拖出三个text，再拖出4个Command按钮 caption分别为+ - * / 这样就准备就绪了

先讲一下简单用法，第一纤森个text是第一个加数/被减数虚竖悔/因数/被除数，而第二个text是第二个加数/减数/因数/除数，第三个text是和/差/积/商，在text1输入一个数，text2输入一个，然后分别点击command“+ - * /”text3就差正会出现结果

然后随便单击一个窗口，把里面的文字删去，再写上：

Private Sub Command1_Click()

Text3.Text = Str$(Val(Text1.Text) + Val(Text2.Text))

End Sub

Private Sub Command2_Click()

Text3.Text = Str$(Val(Text1.Text) - Val(Text2.Text))

End Sub

Private Sub Command3_Click()

Text3.Text = Str$(Val(Text1.Text) * Val(Text2.Text))

End Sub

Private Sub Command4_Click()

Text3.Text = Str$(Val(Text1.Text) / Val(Text2.Text))

End Sub

然后运行，应该就可以了

怎么用vb做一个电费的计算器？

在窗体上添加一个Text1控件, 用于输入电费单价；再添加一个Text2控件，用于输入渣局闹电量；再添加一个Text3, 用于输出计算结果；最后添加一个Command1按钮如罩。代码腊败如下：

Private Sub Command1_Click()

Text3.Text = Val(Text1.Text) * Val(Text2.Text)

End Sub

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