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asp.net web service on local server
<WebService(Namespace:="http://tempuri.org/")> _
<WebServiceBinding(ConformsTo:=WsiProfiles.BasicProfile1_1)> _
<Global.Microsoft.VisualBasic.CompilerServices.DesignerGenerated()> _
 Public Class Service
 Inherits System.Web.Services.WebService

<WebMethod()> _
Public Function CalculerTaxe() As String
    Dim tps As Double = 0.095
    Dim tvq As Double = 0.05
    Dim PrixHors As Double
    Dim PrixFinal As Double = PrixHors * tps * tvq
    Return PrixFinal.ToString()
End Function