1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6  7 namespace 参数数组 8 { 9     //求一串数字的和10 11     class Program12     {13         //方法114         static int Sum(int[] arrays)15         {16             int sum = 0;17             for (int i = 0; i < arrays.Length; i++)18             {19                 sum += arrays[i];20             }21             return sum;22         }23 24         //方法225         static int Plus(params int[] arrays)26         {27             int sum = 0;28             for(int i=0;i<arrays.Length;i++)29                 sum+=arrays[i];30             return sum;31         }32 33         static void Main(string[] args)34         {35             int sum = Sum(new int[] { 12, 321, 34, 12, 3, 12 });36             Console.WriteLine(sum);37 38             int sum2 = Plus(213,32,123,,321321,32);39             Console.WriteLine(sum2);40 41 42             Console.ReadKey();43         }44     }45 }