该Aggregate()
方法在序列上应用累加器功能。
以下是我们的数组-
string[] arr = { "DemoOne", "DemoTwo", "DemoThree", "DemoFour"};
现在使用该Aggregate()
方法。为了进行比较,我们将ssed值设置为“ DemoFive”。
string res = arr.AsQueryable().Aggregate("DemoFive", (longest, next) => next.Length > longest.Length ? next : longest,str => str.ToLower());
在此,结果字符串应具有比初始种子值(即“ DemoFive”)更多的字符数。
using System; using System.Linq; class Demo { static void Main() { string[] arr = { "DemoOne", "DemoTwo", "DemoThree", "DemoFour"}; string res = arr.AsQueryable().Aggregate("DemoFive", (longest, next) => next.Length > longest.Length ? next : longest,str => str.ToLower()); Console.WriteLine("The string with more number of characters: {0}", res); } }
输出结果
The string with more number of characters: demothree