c#英文单词分类统计示例分享

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();
        }
    }
}