易丰科技

标题: Predicate type in the C# [打印本页]
作者: Calvin    时间: 2011-10-16 14:20
标题: Predicate type in the C#

  1. using System;

  3. class Program
  4. {
  5.     static void Main()
  6.     {
  7.         //
  8.         // This Predicate instance returns true if the argument is one.
  9.         //
  10.         Predicate<int> isOne =
  11.             x => x == 1;
  12.         //
  13.         // This Predicate returns true if the argument is greater than 4.
  14.         //
  15.         Predicate<int> isGreaterEqualFive =
  16.             (int x) => x >= 5;

  18.         //
  19.         // Test the Predicate instances with various parameters.
  20.         //
  21.         Console.WriteLine(isOne.Invoke(1));
  22.         Console.WriteLine(isOne.Invoke(2));
  23.         Console.WriteLine(isGreaterEqualFive.Invoke(3));
  24.         Console.WriteLine(isGreaterEqualFive.Invoke(10));
  25.     }
  26. }
复制代码






欢迎光临 易丰科技 (http://forum.yftek.com/) Powered by Discuz! X3