如何返回以某些字符开头和结尾的所有单词？

Question

我有如下单词列表:

List<string> words = new List<string>();
words.Add("abet");
words.Add("abbots"); //<---Return this
words.Add("abrupt");
words.Add("abduct");
words.Add("abnats"); //<--return this.
words.Add("acmatic");

我想返回6个字母的所有单词,以字母"a"开头,并且"t"作为第5个字母,结果应该返回单词"abbots"和"abnats".

var result = from w in words
             where w.StartsWith("a") && //where ????

我需要添加什么条款来满足第5个字母的't'要求？

Answer 1

var result = from w in words
             where w.Length == 6 && w.StartsWith("a") && w[4] == 't'
             select w;