C#4並行計算

  1 using System;
  2 using System.Collections.Generic;
  3 using System.Linq;
  4 using System.Text;
  5 using System.Threading.Tasks;
  6 
  7 namespace ConsoleApp1
  8 {
  9     class Program
 10     {
 11         static void Main(string[] args)
 12         {
 13             Parallel.For(0, 15,
 14                 i => Console.WriteLine("The square of {0} is {1}", i, i * i));
 15 
 16             const int maxValues = 50;
 17             int[] squares = new int[maxValues];
 18 
 19             Parallel.For(0, maxValues,
 20                 i => squares[i] = i * i);
 21 
 22             for (var i = 0; i < maxValues; i++)
 23             {
 24                 Console.WriteLine(squares[i]);
 25             }
 26 
 27             Console.WriteLine("==========================================");
 28             string[] words = new string[] { "We", "hold", "there", "to", "be", "self-evident" };
 29 
 30             Parallel.ForEach(words,
 31                 i => Console.WriteLine($"{i} has {i.Length}"));//和For的區別是：For須要索引號，ForEach不須要
 32 
 33             /*
 34             The square of 0 is 0
 35             The square of 6 is 36
 36             The square of 5 is 25
 37             The square of 1 is 1
 38             The square of 4 is 16
 39             The square of 13 is 169
 40             The square of 3 is 9
 41             The square of 11 is 121
 42             The square of 12 is 144
 43             The square of 14 is 196
 44             The square of 2 is 4
 45             The square of 8 is 64
 46             The square of 10 is 100
 47             The square of 9 is 81
 48             The square of 7 is 49
 49             0
 50             1
 51             4
 52             9
 53             16
 54             25
 55             36
 56             49
 57             64
 58             81
 59             100
 60             121
 61             144
 62             169
 63             196
 64             225
 65             256
 66             289
 67             324
 68             361
 69             400
 70             441
 71             484
 72             529
 73             576
 74             625
 75             676
 76             729
 77             784
 78             841
 79             900
 80             961
 81             1024
 82             1089
 83             1156
 84             1225
 85             1296
 86             1369
 87             1444
 88             1521
 89             1600
 90             1681
 91             1764
 92             1849
 93             1936
 94             2025
 95             2116
 96             2209
 97             2304
 98             2401
 99             ==========================================
100             We has 2
101             self-evident has 12
102             to has 2
103             there has 5
104             hold has 4
105             be has 2
106             請按任意鍵繼續. . .
107 
108                          */
109         }
110     }
111 }