Linq中的Take和Skip

Linq中的Take和Skip"/>

Linq中的Take和Skip

原文：(v=vs.110).aspx

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如果 count 小于等于零，则不枚举 source，并返回空的 IEnumerable<T>。

Take<TSource> 和 Skip<TSource> 方法在功能上补充。 如果给定一个序列 coll 和一个整数 n，则连接 coll.Take(n) 和 coll.Skip(n) 的结果会生成与 coll 相同的序列。

 int[] grades = { 59, 82, 70, 56, 92, 98, 85 };IEnumerable<int> topThreeGrades =grades.OrderByDescending(grade => grade).Take(3);Console.WriteLine("The top three grades are:");foreach (int grade in topThreeGrades){Console.WriteLine(grade);}/*This code produces the following output:The top three grades are:989285*/

int[] grades = { 59, 82, 70, 56, 92, 98, 85 };IEnumerable<int> lowerGrades =grades.OrderByDescending(g => g).Skip(3);Console.WriteLine("All grades except the top three are:");foreach (int grade in lowerGrades){Console.WriteLine(grade);}/*This code produces the following output:All grades except the top three are:82705956*/