数学函数应用

Public Class Form1

    Private Sub TextBox1_TextChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles TextBox1.TextChanged
        TextBox3.Text = Math.Sqrt(Val(TextBox1.Text) + Val(TextBox2.Text))
        TextBox4.Text = Fix(TextBox3.Text)
        TextBox5.Text = Math.Round(Val(TextBox3.Text),2)
    End Sub

    Private Sub TextBox2_TextChanged(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles TextBox2.TextChanged
        TextBox3.Text = Math.Sqrt(Val(TextBox1.Text) + Val(TextBox2.Text))
        TextBox4.Text = Fix(TextBox3.Text)
        TextBox5.Text = Math.Round(Val(TextBox3.Text),2)
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object,ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub
End Class