/// <summary>
/// 异步写入数据
/// </summary>
/// <param name="userId"></param>
/// <param name="taskGuid"></param>
/// <param name="dataGuid"></param>
/// <param name="dataType"></param>
/// <param name="xmlData"></param>
/// <param name="callback"></param>
public Task <string> SetDataAsync(string userId, string taskGuid, string dataGuid, string dataType, string xmlData, Action <string> callback)
{
TaskUtil task = new TaskUtil(this);
return(task.SetDataAsync(userId, taskGuid, dataGuid, dataType, xmlData, callback));
}