Question

我

List<string> words = new List<string> {"word1", "word2", "word3"};

And i want to check using linq if my string contains ANY of these words; Smthng like:

var q = myText.ContainsAny(words);

And the second, if i have a list of sentences too:

List<string> sentences = new List<string> { "sentence1 word1" , "sentence2 word2" , "sentence3 word3"};

并且如果这些句子中有任何一句话,也包含其中的任何内容。

 var q = sentences.Where(s=>words.Any(s.text))....

Answer 1

如果大家需要检查一下子座,那么你可以使用一个简单的准则查询:

var q = words.Any(w => myText.Contains(w));
// returns true if myText == "This password1 is weak";

如果你想听一说的话,你可以定期表达:

1. 打击经常表达的言辞,即:

// you may need to call ToArray if you re not on .NET 4
var escapedWords = words.Select(w => @"" + Regex.Escape(w) + @"");
// the following line builds a regex similar to: (word1)|(word2)|(word3)
var pattern = new Regex("(" + string.Join(")|(", escapedWords) + ")");
var q = pattern.IsMatch(myText);

定期将插手成字,并在文字收集上测试成员(如果你将言词输入而不是List,就会更快地做到这一点):
```
var pattern = new Regex(@"W");
var q = pattern.Split(myText).Any(w => words.Contains(w));
```

为了按照这一标准对判决进行过滤,你必须这样做。在:

 // Given:
 // bool HasThoseWords(string sentence) { blah }
 var q = sentences.Where(HasThoseWords);

或者把它放在一个lam中:

 var q = sentences.Where(s => Regex.Split(myText, @"W").Any(w => words.Contains(w)));

Answer 2

var q = words.Any(w => myText.Contains(w));

恢复所有包含1个或1个以上字的句子:

var t = sentences.Where(s => words.Any(w => s.Contains(w)));

            foreach (var sentence in t)
            {
                Console.WriteLine(sentence);
            }

Answer 3

虽然提出的大多数解决办法是实用的(所有电话Contains,这将为你提供所希望的解决办法),但如果名单和案文很大,你可能会有业绩问题。

从所述问题来看,我认为,你在空间或任何其他分歧之间说一句话。因此,我建议你将<密码>myText分类为一份言词清单,并将其中每一个文本与你现在使用的文字清单进行比较。

当然,这更加复杂;你必须保证说几句正确——但是,如果大体(例如,文本档案)的话,可能会有一些业绩收益。

Answer 4

For your first condition

List<string> words = new List<string> { "word1", "word2", "word3" };
string test = "word1";
bool isFound = words.Contains(test);

For your second condition

bool isFound = sentences.Any(x => x.Split(new char[] {     }).Contains(test));

As an unrelated side-note

You are changing the question s scope after getting some answers and that is not a good way to ask questions. :)

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