这是一个小小的拼写错误的项目,我正在修补,并希望得到一些投入,我可能做错了.我有一个“字典”的字母及其各自的分数和单词列表.我的想法是找到每个单词中的字母,并将得分加在一起.
// Create a letter score lookup var letterscores = new List<Letterscore> { new Letterscore {Letter = "A",score = 1},// ... new Letterscore {Letter = "Z",score = 10} }; // Open word file,separate comma-delimited string of words into a string list var words = File.OpenText("c:\\dictionary.txt").ReadToEnd().Split(',').ToList(); // I was hoping to write an expression what would find all letters in the word (double-letters too) // and sum the score for each letter to get the word score. This is where it falls apart. var results = from w in words join l in letterscores on // expects an 'equals' // join l in letterscores on l.Any(w => w.Contains( select new { w,l.score };
任何帮助将不胜感激.
谢谢.
解决方法
你不能,基本上 – 加入LINQ总是一个等等.你可以达到你想要的效果,但不能加入.这里有一个例子:
var results = from w in words from l in letterscores where l.Any(w => w.Contains(l.Letter)) select new { w,l.score };
我认为这是你试图用你的查询,虽然它不会给你的单词得分.对于完整的单词分数,我会建立一个字母从字母到得分,像这样:
var scoreDictionary = letterscores.ToDictionary(l => l.Letter,l => l.score);
然后,您可以通过将每个字母的得分相加来找到每个单词的得分:
var results = from w in words select new { Word = w,score = w.Sum(c => scoreDictionary[c]) };
或不作为查询表达式:
var results = words.Select(w => new { Word = w,score = w.Sum(c => scoreDictionary[c]) });