基本SumNumber程序

Question

当我运行这个时，我得到第一个数字分成两个标签。
但我需要它显示从开始和结束数字之间的数字。
E.G 10（起始）11+12+13+14+15+16+17+18+19+20 20（成为结束编号）
我该怎么做？

Public Class frmSumNumbers 

Private Sub btnCalculate_Click(sender As Object, e As EventArgs) Handles btnCalculate.Click 
    Dim sum As Integer 
    Dim count As Integer 
    Dim num1 As Integer 
    Dim num2 As Integer 

    For x = num1 To num2 
     sum = num1 + num2 
     count = count + 1 
    Next x 

    lblAnswer.Text = count 
    lblAnswer1.Text = sum 
End Sub 

End Class 

Answer 1

如果NUM1 = 1 10和NUM2 = 20，那么想要的文本字符串是 “10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20” 是吗？

确定你的代码应该是

Private Sub btnCalculate_Click(sender As Object, e As EventArgs) Handles btnCalculate.Click 
    Dim sum As Integer 
    Dim count As Integer 
    Dim num1 As Integer 
    Dim num2 As Integer 
    Dim numberLine As String = "" 
    For x = num1 To num2 
     sum = num1 + num2 
     count = count + 1 
     numberLine = numberLine & x.ToString 
     If x < num2 Then 
      numberLine = numberLine & "+" 
     End If 
    Next x 

    lblAnswer.Text = count 
    lblAnswer1.Text = sum 
    lblNumberLine.Text = numberLine 
End Sub