您可以向管道添加脚本组件，该组件从输入变量读取文件名并将文件修改日期写入输出变量:

You can add a script component to the pipeline which reads the filename from an input variable and writes the file modified date to an output variable:

    /// <summary>
    /// This method is called when this script task executes in the control flow.
    /// Before returning from this method, set the value of Dts.TaskResult to indicate success or failure.
    /// To open Help, press F1.
    /// </summary>
    public void Main()
    {
        System.IO.FileInfo theFile = 
              new System.IO.FileInfo(Dts.Variables["User::FilePath"].Value.ToString());

        if (theFile.Exists)
        {
            Dts.Variables["User::LastFileDate"].Value = theFile.LastWriteTime;
        }
        Dts.TaskResult = (int)ScriptResults.Success;
    }