c# - ienumerable <字符串>到列表<字符串>

Question

我有以下代码片段

        string[] lines = objects.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);  
        //convert the array into a list for easier comparison
        List<string> StringtoList = lines.OfType<string>().ToList();

        //get the database list here
        List<string> sensitiveApps = testConnection.SelectSensitive();

        //compare the 2 lists to get the difference
        List<string> except = sensitiveApps.Except(StringtoList,StringComparer.OrdinalIgnoreCase);

但是，我不断收到上述错误，有人能指出我正确的方向吗？

Answer 1

我猜最后一行抛出异常。尝试更改:

List<string> except = sensitiveApps.Except(StringtoList,StringComparer.OrdinalIgnoreCase);

至:

List<string> except = sensitiveApps.Except(StringtoList,StringComparer.OrdinalIgnoreCase).ToList();

发生此异常是因为 Except将返回 IEnumerable<string>。