该程序应该读取文本文件中的值并获取所有这些值的总和。然后使用从一系列复选框和文本框中收集的信息来计算最终利润。在Visual Basic中计算利润
由于现在编写代码,如果所有复选框都被选中,利润是正确的,但是如果选中了一个,两个或全部三个,我需要它是正确的。下面是当前的代码 选项严格在
Imports System.IO
Public Class Form1
Dim sum As Double
Dim fileRead As Boolean
Dim profit As Double
Private Sub menOpen_Click(sender As Object, e As EventArgs) Handles menOpen.Click
Dim ofd As New OpenFileDialog
ofd.Filter = "text files |*.txt|All Files|*.*"
ofd.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory)
If ofd.ShowDialog() = Windows.Forms.DialogResult.OK Then
Dim selectedFileName As String = System.IO.Path.GetFileName(ofd.FileName)
If selectedFileName.ToLower = "profit.txt" Then
Dim line As String
Using reader As New StreamReader(ofd.OpenFile)
While Not reader.EndOfStream
line = reader.ReadLine
Dim value As Integer
If Integer.TryParse(line, value) Then
sum = sum + value
fileRead = True
End If
Console.WriteLine(line)
End While
End Using
Else
MessageBox.Show("You cannot use that file!")
End If
End If
End Sub
Private Sub menExit_Click(sender As Object, e As EventArgs) Handles menExit.Click
Me.Close()
End Sub
Private Sub radSales_CheckedChanged(sender As Object, e As EventArgs) Handles radSales.CheckedChanged
If radSales.Checked Then
profit = sum
End If
End Sub
Private Sub radSandO_CheckedChanged(sender As Object, e As EventArgs) Handles radSandO.CheckedChanged
If radSandO.Checked Then
If Trim(txtWages.Text) = "" Then
txtWages.Text = CStr(0)
End If
profit = (sum - CDbl(txtWages.Text) - CDbl(txtRent.Text) - CDbl(txtUtilities.Text))
End If
End Sub
Private Sub menComputeProfit_Click(sender As Object, e As EventArgs) Handles menComputeProfit.Click
If fileRead = False Then
MessageBox.Show("The file profit.txt has not been read in yet, the profit will be set to zero.")
sum = 0
End If
If chkWages.Checked Then
profit = CDbl(("$" & Val(sum) - (Val(txtWages.Text) + Val(txtRent.Text) + Val(txtUtilities.Text))))
End If
If chkRent.Checked Then
profit = CDbl(("$" & Val(sum) - (Val(txtRent.Text) + Val(txtWages.Text) + Val(txtUtilities.Text))))
End If
If chkUtilities.Checked Then
profit = CDbl(("$" & Val(sum) - (Val(txtUtilities.Text) + Val(txtWages.Text) + Val(txtRent.Text))))
End If
txtAnswer.Text = profit.ToString
End Sub
End Class
任何帮助将不胜感激。
我想你已经检查了文本框只包含数字和小数点。 – Mych
请记住在VB.NET中计算利润以取得Micro $ oft的楔子! – Paul
我认为你的利润分配有点不对。尝试从混音中删除“$”,并在分配给文本框时将其添加到字符串中。 – Paul