调用webService的一个例子（反射、传参）

public object DoF(string sFunctionName,string sQueryString)
{
try
{
string sServerPath = Server.MapPath("");
//string sTmp = System.AppDomain.CurrentDomain.BaseDirectory;
Assembly asm = Assembly.LoadFrom(sServerPath + @"\bin\BusinessRule.dll");//加载前面生成的程序集

//未能加载文件或程序集“file:///C:\Program Files\Common Files\Microsoft Shared\DevServer\10.0\bin\Debug\BusinessRule.dll”或它的某一个依赖项。系统找不到指定的文件。
Type t = asm.GetType("BusinessRule.Class1");
object[] param =null;

if (!string.IsNullOrEmpty(sQueryString))
param = sQueryString.Split(',');

object o = Activator.CreateInstance(t);
MethodInfo method = t.GetMethod("F" + sFunctionName);
param = new object[] { param };
var result = method.Invoke(o, param);
return result;
}
catch (Exception ex)
{
                //return ex.Message;               
return "未实现的函数：" + sFunctionName;
            }
}

public static string F100(string[] _sQueryString)
{
if (_sQueryString!=null && _sQueryString.Length>0)
{
int sum = 0;
foreach (string i in _sQueryString)
{
sum += int.Parse(i);
}
return sum.ToString();
}
else {
return "";
}
}

private void button1_Click(object sender, EventArgs e)
{
BBB.MyService se = new BBB.MyService();
var result = se.DoF(txtFunctionName.Text.Trim(),txtQueryString.Text.Trim());
txtResult.Text = result.ToString();
}