//记录日志
private void write_log(String msg)
{
String time = DateTime.Now.ToLocalTime().ToString();
Log_Box.AppendText(Environment.NewLine + "[" + time + "] " + msg);
Log_Box.ScrollToCaret();
}
private void Log_Box_TextChanged(object sender, EventArgs e) //将日志区滑至底端
{
Log_Box.SelectionStart = Log_Box.Text.Length;
Log_Box.ScrollToCaret();
}