获取文件大小，及删除文件

 public void Main()
        {
            string strFilePath = Dts.Variables["User::RootPath"].Value.ToString() + Dts.Variables["User::CurrentPath"].Value.ToString() + "\\" + Dts.Variables["User::CurrentDate"].Value.ToString() + "-" + Dts.Variables["User::CurrentPath"].Value.ToString() + ".xls";
            //MessageBox.Show(strFilePath);
            FileInfo file = new FileInfo(strFilePath);
            if (file.Exists)
            {
                double fileSize = (double)file.Length / 1024;
                //MessageBox.Show(fileSize.ToString());

                //if file size <= 11k ,then delete 
                if (fileSize <= double.Parse(Dts.Variables["User::MinSize"].Value.ToString()))
                {
                    file.Delete();
                }
            }

            // TODO: Add your code here
            Dts.TaskResult = (int)ScriptResults.Success;
        }