客户端模拟方法重载

//客户端脚本

    <asp:ScriptManager ID="ScriptManager1" runat="server" ScriptMode="Debug">
            <Services>
                <asp:ServiceReference Path="WebServiceFoundation.asmx" InlineScript="true" />
            </Services>
        </asp:ScriptManager>
        
        <input type="button" value="Get Random" onclick="getRandom()" />
        <input type="button" value="Get Range Random" onclick="getRandom(50, 100)" />
        
        <script language="javascript" type="text/javascript">
            function getRandom(minValue, maxValue)
            {
                if (arguments.length != 2)
                {
                    Sample.WebServiceFoundation.GetRandom(getRandomSucceeded);
                }
                else
                {
                    Sample.WebServiceFoundation.GetRangeRandom(minValue, maxValue, getRandomSucceeded);
                }
            }
            
            function getRandomSucceeded(result)
            {
                alert(result);
            }
        </script>

//WebService

    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ScriptService]
    public class WebServiceFoundation : System.Web.Services.WebService
    {
        [WebMethod]
        public int GetRandom()
        {
            return new Random(DateTime.Now.Millisecond).Next();
        }

        [WebMethod]
        public int GetRangeRandom(int minValue, int maxValue)
        {
            return new Random(DateTime.Now.Millisecond).Next(minValue, maxValue);
        }
    }