#region 取得windows的所有進程
public static string GetCourse()
{
  System.Text.StringBuilder sb = new System.Text.StringBuilder();
  string tempName = "";
  int begpos, endpos;
  foreach (System.Diagnostics.Process thisProc in System.Diagnostics.Process.GetProcesses())
  {
    tempName = thisProc.ToString();
    begpos = tempName.IndexOf("(") + 1;
    endpos = tempName.IndexOf(")");
    tempName = tempName.Substring(begpos, endpos - begpos);
    sb.Append(tempName + "<br /> ");
  }
  return sb.ToString();
}
#endregion