.NET-LINQ-C#-基础-示例-LINQ查询的三个部分

Posted 2021-02-24

Snippet to illustrate the three actions that happen in all LINQ query operations.

// The Three Parts of a LINQ Query:
 
// 1. Data source.
int[] numbers = new int[7] { 0, 1, 2, 3, 4, 5, 6 };
 
// 2. Query creation.
// numQuery is an IEnumerable<int>
var numQuery =
    from num in numbers
    where (num % 2) == 0
    select num;
 
// 3. Query execution.
foreach (int num in numQuery)
{
    Console.Write("{0,1} ", num);
}