private void btnClosed_Click(object sender, EventArgs e)
{
if (shellRun.IsExited() == false)
{
if (MessageBox.Show("确定终止当前运行的程序么？", "提示",
MessageBoxButtons.OKCancel, MessageBoxIcon.Information) == DialogResult.OK)
{
shellRun.Cancel();
this.Close();
}
}
else
{
this.Close();
}
}