利用GetType反射方法再调用方法进行传递参数实现调用

TestMenuService.MenuServiceCSClient tesClient = new TestMenuService.MenuServiceCSClient();

var client = tesClient.GetType()
.GetMethod("GetMenuID",
BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance);
if (client != null)
{
var s=client.Invoke(tesClient, new object[] {"5","3"});
if (s != null)
{
Console.Write(s.ToString());
}
}