将字符串列表转换为 xml，并将 xml 转换为字符串列表。

Question

你好

 

我有要转换为 xml 并保存到磁盘的字符串（文件名）列表。

 

我想从磁盘读取此 xml 并转换为字符串列表。

 

我想从磁盘中删除此 xml。

 

提前致谢，

 

 

此问题整理于：https://learn.microsoft.com/en-us/answers/questions/1654026/convert-list-of-strings-to-xml-and-convert-the-xml

Answer 1

你好，

我使用了一个静态类来实现上述三个函数。

您可以参考以下键代码和注释。

// The xml file format written by this method is
// <? xml version = "1.0" encoding = "UTF-8"?>
// <site>
//      <name> test.txt </name>
//      <name> Filename.txt </name>
// </site>
// If you need to adjust the XML file format, you can refer to this method for modification.
public static class ListXMLHelper
{
    public static void WriteStringsToXML(string filename, List<string> strings)
    {
        StringBuilder myStringBuilder = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
        myStringBuilder.AppendLine();
        myStringBuilder.AppendLine("<site>");
        foreach (string s in strings) {
            myStringBuilder.Append("    <name>");
            myStringBuilder.Append(s);
            myStringBuilder.Append("</name>");
            myStringBuilder.AppendLine();
        }
        myStringBuilder.AppendLine("</site>");
        using (StreamWriter outputFile = new StreamWriter(filename))
        {
            outputFile.Write(myStringBuilder.ToString());
        }
    }
    public static List<string> ReadStringsToXML(string filename) {
        List<string> strs = new List<string>();
        using (StreamReader inputFile = new StreamReader(filename))
        {
            while (!inputFile.EndOfStream) {
                var s = inputFile.ReadLine();
                // get value from <name></name>
                var value = GetContent(s, "name");
                if (value != null) { 
                    strs.Add(value);
                }
            }
        }
        return strs;
    }
   // Get the value in the XML label through a regular expression.
   public static string GetContent(string str, string title)
    {
        string tmpStr = string.Format("<{0}[^>]*?>(?<Text>[^<]*)</{1}>", title, title); //获取<title>之间内容
 
       Match TitleMatch = Regex.Match(str, tmpStr, RegexOptions.IgnoreCase);
 
       string result = TitleMatch.Groups["Text"].Value;
        if (result.Length > 0) {
            return result;
        }
        else
        {
            return null;
        }
 
       
    } 
   // delete the file
   public static void DeleteFile(string filename) {
        if (File.Exists(filename))
        {
            File.Delete(filename);
        }
    }
}

Please refer to the following documentations:

• File system helpers Using the StringBuilder Class in .NET

.NET regular expressions

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