C#将数组作为参数

using System;

namespace ArrayApplication {

   class ParamArray {

      public int AddElements(params int[] arr) {
         int sum = 0;

         foreach (int i in arr) {
            sum += i;
         }
         return sum;
      }
   }

   class TestClass {

      static void Main(string[] args) {
         ParamArray app = new ParamArray();
         int sum = app.AddElements(512, 720, 250, 567, 889);
         Console.WriteLine("The sum is: {0}", sum);
         Console.ReadKey();
      }
   }
}