C#3.0新增功能09 LINQ 基础07 LINQ 中的查询语法和方法语法

 1 class QueryVMethodSyntax
 2 {
 3     static void Main()
 4     {
 5         int[] numbers = { 5, 10, 8, 3, 6, 12};
 6 
 7         // 查询语法
 8         IEnumerable<int> numQuery1 = 
 9             from num in numbers
10             where num % 2 == 0
11             orderby num
12             select num;
13 
14         // 方法语法
15         IEnumerable<int> numQuery2 = numbers.Where(num => num % 2 == 0).OrderBy(n => n);
16 
17         foreach (int i in numQuery1)
18         {
19             Console.Write(i + " ");
20         }
21         Console.WriteLine(System.Environment.NewLine);
22         foreach (int i in numQuery2)
23         {
24             Console.Write(i + " ");
25         }
26         
27         // Keep the console open in debug mode.
28         Console.WriteLine(System.Environment.NewLine);
29         Console.WriteLine("Press any key to exit");
30         Console.ReadKey();
31     }
32 }
33 /*
34     输出:
35     6 8 10 12
36     6 8 10 12
37  */