调用Hotbits并解析xml应答文件并打印出随机数

Question

namespace ConsoleApp1
{
    class Program
    {
        static HttpClient client = new HttpClient();
        static void Main(string[] args)
        {
            RunAsync().Wait();
        }
        static async Task<string> GetProductAsync(string path = "https://www.fourmilab.ch/cgi-bin/Hotbits.api?nbytes=8&fmt=xml&npass=1&lpass=8&pwtype=3&apikey=HB18CsHhr5Muzoee1KAu4QY5xUe")
        {
            string product = string.Empty;
            HttpResponseMessage response = await client.GetAsync(path);
            if (response.IsSuccessStatusCode)
            {
                product = await response.Content.ReadAsAsync<string>();
            }
            return product;
        }
        static async Task RunAsync()
        {
            string str = await GetProductAsync();
            XmlDocument xml = new XmlDocument();
            xml.Load(str);
            Console.WriteLine(xml.InnerXml);
            XmlNodeList list = xml.GetElementsByTagName("random-data");
            string[] strs = list[0].InnerXml.Split(' ');
            foreach (object e in strs)
            {
                Console.WriteLine(e);
            }
        }

嗨，这是我在c#中调用hotbits的源代码，我得到的错误是

"CData元素在XML文档的顶层无效。第1行，位置3“

如果有人能帮忙，这是非常感谢的。

Answer 1

使用Xml尝试如下：

const string URL = "https://www.fourmilab.ch/cgi-bin/Hotbits.api?nbytes=8&fmt=xml&npass=1&lpass=8&pwtype=3&apikey=HB18CsHhr5Muzoee1KAu4QY5xUe";
static void Main(string[] args)
{
    XDocument doc = XDocument.Load(URL);

    string randomNumbers = (string)doc.Descendants("random-data").FirstOrDefault();

    int[] numbers = randomNumbers.Split(new char[] { ' ', '\n' }, StringSplitOptions.RemoveEmptyEntries).Select(x => int.Parse(x, System.Globalization.NumberStyles.HexNumber)).ToArray();

    Console.WriteLine(string.Join(",",numbers.Select(x => x.ToString())));
    Console.ReadLine();

}