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如何在字符串中搜索关键字并在c#中显示没有关键字的字符串?[已关闭]

interpreter keyword string .net c#

0

Nick · 技术社区 · 8 年前

例如,我想这样工作:

显示:您好

我的现有代码:

public void Run()
    {
        string uriPath;
        uriPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
        string path = new Uri(uriPath).LocalPath;
        NBasicInfo info = new NBasicInfo();
        Console.Clear();
        Console.WriteLine("Run Project");
        Console.WriteLine("=======================================");
        Console.WriteLine("Files to open: ");
        string[] filePaths = Directory.GetFiles(path + @"\NDOS\Programs\NBasic");
        for (int i = 0; i < filePaths.Length; ++i)
        {
            string _path = filePaths[i];
            Console.WriteLine(System.IO.Path.GetFileName(_path));
         }
         Console.WriteLine();
         Console.Write("Project Name (Name before .nbasic) (Do not include .nbasic): ");
         string fileName = Console.ReadLine();
         try
         {
            StreamReader contentCode = new StreamReader(path + @"\NDOS\Programs\NBasic\" + fileName + ".nbasic");
            string codeContent = contentCode.ReadToEnd();
            contentCode.Close();
            XmlSerializer xs = new XmlSerializer(typeof(NBasicInfo));
            FileStream read = new FileStream(path + @"\NDOS\Programs\NBasic\" + fileName + ".xml", FileMode.Open, FileAccess.Read, FileShare.Read);
            NBasicInfo info2 = (NBasicInfo)xs.Deserialize(read);
            info2.pname = info2.ProjectName;
            info2.aname = info2.ApplicationName;
            info2.dname = info2.DeveloperName;
            read.Close();
            Console.Clear();
            Console.WriteLine("Running " + info2.aname + "...");
            Console.WriteLine("===================================================================");
            Thread.Sleep(200);
            Console.ReadKey();
         }
         catch
         {
            Console.WriteLine("Error running code. Please check code and correct any mistakes.");
         }
    }

我需要的是搜索关键字(在本例中为“print”)并在此之后显示单词的代码。

2 回复 | 直到 8 年前

1

0

Jonathan Applebaum 8 年前

超级超基本 例如(为了更好地理解此类任务中所需的约束),使其更易于维护,并保存所有嵌套的if语句,如@Keith Nicholas所述:

class Program
{
    static void Main(string[] args)
    {
        PrintKeyWords.CheckForKeyWord("print hello world!!!");
        PrintKeyWords.CheckForKeyWord("specialPrint hello world!!!");
        Console.ReadLine();
    }
}

delegate void ExecuteMethod();
public static class PrintKeyWords
{

    private static string Command { get; set; }
    public static void CheckForKeyWord(string cmd)
    {

        foreach (KeyValuePair<string, ExecuteMethod> keyword in KeyWordsDict)
        {
            if (cmd.StartsWith(keyword.Key))
            {
                Command = cmd;
                KeyWordsDict[keyword.Key].Invoke();
                return;
            }
        }
            Console.WriteLine("your command is not recognized as an internal or exter
    }

    private static Dictionary<string, ExecuteMethod> _KeyWordsDict;
    private static Dictionary<string, ExecuteMethod> KeyWordsDict
    {
        get
        {
            if (_KeyWordsDict == null)
            {
                _KeyWordsDict = new Dictionary<string, ExecuteMethod>();
                _KeyWordsDict.Add("print", Print);
                _KeyWordsDict.Add("specialPrint", SpecialPrint);
                return _KeyWordsDict;
            }

            else
            {
                return _KeyWordsDict;
            }
        }
    }

    private static void Print()
    {
        Console.WriteLine(Command.Replace("print", ""));
    }

    private static void SpecialPrint()
    {
        Console.WriteLine(Command.Replace("specialPrint", "") + "*****************");
    }
}

2

0

pm100 8 年前

if(command.StartsWith("Print"))
{
  Console.WriteLine(command.Substring(6));
}

但这并不是一个真正的世界级语言口译员