复制代码 代码如下:
using System;
using System.Linq;
namespace ConsoleApplication1
{
/// <summary>
/// 给出一段英文，分类统计（如：长度为4的单词有2个：time，well）
/// </summary>
class Program
{
static void Main(string[] args)
{
string source = "Do one thing at a time,and do well";//已知英文语句
string[] stringArray = source.Split(new char[] { ' ', ',' });
var result = stringArray.GroupBy(s => s.Length).Select(s => new {
Lenght = s.Select(x => x).FirstOrDefault().Length,
Count = s.Count(),
StringItems = s.Select(x => x)
});

foreach (var s in result)
{
string strResult = string.Empty;
foreach (var item in s.StringItems)
{
strResult += string.IsNullOrEmpty(strResult) ? item : " , " + item;
}
Console.WriteLine(string.Format("长度为{0}的单词有{1}个：{2}", s.Lenght, s.Count, strResult));
}
Console.ReadKey();
}
}
}