在字符串数组中搜索

时间:2010-06-29 14:22:24

标签: c#

string[] words = {"januar", "februar", "marec", "april", "maj", "junij", "julij",    
"avgust", "september", "oktober", "november", "december"};

我有单词“ja”或“dec”。我如何从字符串数组中获得“januar”或“december”?有任何快速解决方案吗?

THX

4 个答案:

答案 0 :(得分:5)

您可以使用LINQ:

words.FirstOrDefault(w => w.StartsWith(str, StringComparison.OrdinalIgnoreCase))

如果没有匹配,则返回null

答案 1 :(得分:3)

如果您使用的是较新版本的C#(3.0及更高版本),可以使用LINQ:

// to find a match anywhere in the word
words.Where(w => w.IndexOf(str, 
    StringComparison.InvariantCultureIgnoreCase) >= 0);

// to find a match at the beginning only
words.Where(w => w.StartsWith(str, 
    StringComparison.InvariantCultureIgnoreCase));

答案 2 :(得分:0)

List<string> words = new List<string>() { "January", "February", "March", "April" };

var result = words.Where(w => w.StartsWith("jan", StringComparison.OrdinalIgnoreCase));

将找到以您提供的任何条件开头的结果,并忽略大小写(可选。)

答案 3 :(得分:0)

您也可以使用简单的正则表达式... string [] words = {“januar”,“februar”,“marec”,“april”,“maj”,“junij”,“julij”,“avgust”,“september”,“oktober”,“11月”, “十二月”                          };

    string sPattern = "ja";

    foreach (string s in words)
    {


        if (System.Text.RegularExpressions.Regex.IsMatch(s, sPattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
        {
            System.Console.WriteLine("  (match for '{0}' found)", sPattern);
        }

    }