[c++实现计算器的方法和代码]中缀表达式转后缀表达式,考试大现在就用这个方式再实现计算器..表达式一旦转换成后缀表达式再进行计算就简单的不得了.Examda遇到一个符号就弹出离他最近的两个操作数然后...+阅读
Text1 计算数字
Text2 计算数字2
Label1 符号 + - * ÷
Text3 答案
代码-----------------------------------------------------------------------------------------------------------------
If Label1.Caption = "-" Then Text3.Text = Val(Text1.Text) - Text2.Text
If Label1.Caption = "+" Then Text3.Text = Val(Text1.Text) + Text2.Text
If Label1.Caption = "÷" Then Text3.Text = Val(Text1.Text) / Text2.Text
If Label1.Caption = "*" Then Text3.Text = Val(Text1.Text) * Text2.Text
求vb计算器代码及简单界面
Private Sub Command1_Click() MsgBox Val(Text1) + Val(text2) End Sub Private Sub Command2_Click() MsgBox Val(Text1) - Val(text2) End Sub Private Sub Command3_Click() MsgBox Val(Text1) * Val(text2) End Sub Private Sub Command4_Click() If text2 = 0 Then MsgBox "除数不为0" Else MsgBox Val(Text1) / Val(text2) End If End Sub
VB计算器代码?
我这有一个简单的计算机代码
结构如下:
代码:
Dim index Private Sub Command1_Click() index = "+" End Sub
Private Sub Command2_Click() index = "-" End Sub
Private Sub Command3_Click() index = "*" End Sub
Private Sub Command4_Click() index = "/" End Sub
Private Sub Command5_Click() Select Case index Case "+" Text3.Text = Val(Text1.Text) + Val(Text2.Text) Case "-" Text3.Text = Val(Text1.Text) - Val(Text2.Text) Case "*" Text3.Text = Val(Text1.Text) * Val(Text2.Text) Case "/" Text3.Text = Val(Text1.Text) / Val(Text2.Text) End Select End Sub
Private Sub Command6_Click() Text1.Text = "" Text2.Text = "" Text3.Text = "" End Sub
楼主给分哦!
用VB制作一个简单的计算器求他的代码最好是全部的代码也可
Option Explicit
Dim a, b, c As Single, j As Integer, k As Boolean
Private Sub cls_Click()
xs.Text = ""
dot.Enabled = True
a = 0
End Sub
Private Sub dot_Click()
If k Then k = False: xs.Text = "0"
xs.Text = xs.Text + "."
dot.Enabled = False
End Sub
Private Sub dy_Click()
k = True
b = Val(xs.Text)
Select Case j
Case 0
c = a + b
Case 1
c = a - b
Case 2
c = a * b
Case 3
If b <> 0 Then c = a / b
Case 4
If b <> 0 Then c = a Mod b
End Select
xs.Text = c
End Sub
Private Sub exit_Click()
Unload Me
Form1.Show
End Sub
Private Sub Form_Load()
k = False
End Sub
Private Sub js_Click(Index As Integer)
k = True
a = Val(xs.Text)
j = Index
dot.Enabled = True
End Sub
Private Sub num_Click(Index As Integer)
If k Then k = False: xs.Text = "0"
xs.Text = xs.Text & CStr(Index)
End Sub
Private Sub xs_Change()
If Len(xs.Text) = 2 And Left(xs.Text, 1) = "0" And Right(xs.Text, 1) <> "." Then xs.Text = Right(xs.Text, 1)
End Sub
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