用Linq对String类型的数字求和

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;

 namespace ConsoleApplication1
 {
     class Program
     {
         static void Main(string[] args)
         {
             Func<string, double, double> funDelegate = CustomCount;
             string[] strArry = new string[] { "73.86", "66.25", "95.57", "33.54", "55.05"};
             double numSum = ;
             numSum = strArry.Sum(s => funDelegate(s, numSum));

             Console.WriteLine(numSum);

             Console.ReadKey();
         }
         public static double CustomCount(string strNum,double Sum)
         {
             Sum += Convert.ToDouble(strNum);
             return Sum;
         }

     }
 }

运行结果：