使用文件IO在UWP平台下实现本地队列

FileIO类配置及初始化：

private StorageFile samplie;
StorageFolder folder = ApplicationData.Current.LocalFolder;//获取应用文件目录
public string file_name = "Quene.sisx";

向队列中添加数据：（以回车作为分割符）

public async void AddQuene(string Info)
        {
            StorageFile file = await folder.GetFileAsync(file_name);
            if (file != null)
            {
                try
                {
                    string Str = await Windows.Storage.FileIO.ReadTextAsync(file);
                    await Windows.Storage.FileIO.WriteTextAsync(file, Str+Info+"\n");
                }
                catch (Exception)
                { }
            }
        }

读取队列中的数据，并在读取后清空队列

        public async void PoPOut()
        {
            try
            {
                StorageFile file = await folder.GetFileAsync(file_name);
                string Str = await Windows.Storage.FileIO.ReadTextAsync(file);
                Quene = Str.Split(Environment.NewLine.ToCharArray());
                await Windows.Storage.FileIO.WriteTextAsync(file, "");//清空数据栈
            }
            catch (Exception)
            {
            }
        }