小编Yas*_*hVj的帖子

我使用以下代码:

private string covertRss(string url)
    {
        var s = RssReader.Read(url);
        StringBuilder sb = new StringBuilder();
        foreach (RssNews rs in s)   //ERROR LINE
        {
            sb.AppendLine(rs.Title);
            sb.AppendLine(rs.PublicationDate);
            sb.AppendLine(rs.Description);
        }

        return sb.ToString();
    }

我收到一个错误:

错误1 foreach语句无法对类型为"System.Threading.Tasks.Task(System.Collections.Generic.List(Cricket.MainPage.RssNews))"的变量进行操作,因为'System.Threading.Tasks.Task(System.Collections.Generic) .List(Cricket.MainPage.RssNews))'不包含'GetEnumerator'的公共定义

RssNews课程是:

public class RssNews
    {
        public string Title;
        public string PublicationDate;
        public string Description;

    }

我应该添加什么代码,以便删除错误并且代码的目的不会被编译？提前致谢!

RssReader.Read()的代码

public class RssReader
    {
        public static async System.Threading.Tasks.Task<List<RssNews>> Read(string url)
        {
            HttpClient httpClient = new HttpClient();

            string result = await httpClient.GetStringAsync(url); 

            XDocument document = XDocument.Parse(result);

            return (from descendant in …