easy to show all windows serialport contant vitrual port

~~~rs use comportlist::availableports; let mut cc = availableports(); cc.sortbykey(|k| k.com.clone()); println!("{}",cc.len()); for idx in cc{ println!("{}", idx.com);

    println!("{}",idx.manufacturer);

    println!("{}",idx.product);
}

~~~ println!() ~~~ com0com - serial port emulator CNCA0 (COM111) Vyacheslav Frolov COM112 com0com - serial port emulator CNCB0 (COM112) Vyacheslav Frolov ~~~