本文整理汇总了C#中System.Linq.Queryable.Aggregate方法的典型用法代码示例。如果您正苦于以下问题：C# Queryable.Aggregate方法的具体用法？C# Queryable.Aggregate怎么用？C# Queryable.Aggregate使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。
在下文中一共展示了Queryable.Aggregate方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1:
string[] fruits = { "apple", "mango", "orange", "passionfruit", "grape" };
// Determine whether any string in the array is longer than "banana".
string longestName =
fruits.AsQueryable().Aggregate(
"banana",
(longest, next) => next.Length > longest.Length ? next : longest,
// Return the final result as an uppercase string.
fruit => fruit.ToUpper()
);
Console.WriteLine(
"The fruit with the longest name is {0}.",
longestName);输出：
The fruit with the longest name is PASSIONFRUIT.
示例2:
int[] ints = { 4, 8, 8, 3, 9, 0, 7, 8, 2 };
// Count the even numbers in the array, using a seed value of 0.
int numEven =
ints.AsQueryable().Aggregate(
0,
(total, next) => next % 2 == 0 ? total + 1 : total
);
Console.WriteLine("The number of even integers is: {0}", numEven);输出：
The number of even integers is: 6
示例3:
string sentence = "the quick brown fox jumps over the lazy dog";
// Split the string into individual words.
string[] words = sentence.Split(' ');
// Use Aggregate() to prepend each word to the beginning of the
// new sentence to reverse the word order.
string reversed =
words.AsQueryable().Aggregate(
(workingSentence, next) => next + " " + workingSentence
);
Console.WriteLine(reversed);输出：
dog lazy the over jumps fox brown quick the