如何在数组中找到多个值？

Question

下面的代码只显示一个字母，我该如何查找字母组合？例如：在我的数组中查找字母“ac”并将其输出到[HttpGet] public ActionResult Index(string message) { var Result = from Client in db.Clients where Clients.ClientName == message select Clients.ClientName; ViewBag.Message = Result.ToList(); getCurrentUser(); return View(); }

textBox2

Answer 1

我想您要检查是否只在文本框中输入了数组的字母：

bool valid = textBox1.Text.All(c => alphabet.Contains(c.ToString()));

如果它是char[]你可以写：

bool valid = textBox1.Text.All(alphabet.Contains);

然后您还可以使用Enumerable.Except来获得设置差异：

var notValidLetters = textBox1.Text.Except(alphabet);
textBox2.Text = "Following are not valid letters: " + String.Join(", ", notValidLetters);

Answer 2

考虑到您的问题是＆＃34;从给定字符串a＆＃34;＆＃34获取c和ac;

string[] alphabet = new string[] { "a", "b", "c"};
        for (int letter = 0; letter < alphabet.Length; letter++)
        {
            if (textBox1.Text.Any(alphabet[letter]))
                textBox2.Text += alphabet[letter];
        }