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    ¹«Ë¾Óõ½´®¿Ú±à³Ì£¬¹Ê¿ªÊ¼Ñо¿£¬Ê×ÏÈËѵ½µÄÊÇjavacomm20-win32.zipÕâ¸öѹËõ°ü£¬°´ÕÕÍøÉϵݲװÅäÖúã¬ÈçÏ£º
    API
    ÔÚjavax.commÏÂÓÐ13¸öÀàºÍ½Ó¿Ú£¬·Ö±ðÊÇ
    4¸ö½Ó¿Ú
    CommDriver ¿É¸ºÔØÉ豸£¨the loadable device£©Çý¶¯³ÌÐò½Ó¿ÚµÄÒ»²¿·Ö
    CommPortOwnershipListener ´«µÝ¸÷ÖÖͨѶ¶Ë¿ÚµÄËùÓÐȨʼþ
    ParallelPortEventListener ´«µÝ²¢Ðж˿Úʼþ
    SerialPortEventListener ´«µÝ´®Ðж˿Úʼþ
    6¸öÀà
    CommPort ͨѶ¶Ë¿Ú
    CommPortIdentifierͨѶ¶Ë¿Ú¹ÜÀí
    ParallelPort ²¢ÐÐͨѶ¶Ë¿Ú
    ParallelPortEvent ²¢Ðж˿Úʼþ
    SerialPort RS-232´®ÐÐͨѶ¶Ë¿Ú
    SerialPortEvent ´®Ðж˿Úʼþ
    3¸öÒì³£Àà
    NoSuchPortException µ±Çý¶¯³ÌÐò²»ÄÜÕÒµ½Ö¸¶¨¶Ë¿ÚʱÅ׳ö
    PortInUseException µ±Åöµ½Ö¸¶¨¶Ë¿ÚÕýÔÚʹÓÃÖÐʱÅ׳ö
    UnsupportedCommOperationException Çý¶¯³ÌÐò²»ÔÊÐíÖ¸¶¨²Ù×÷ʱÅ׳ö
    °²×°:
    //ÔÚÏîÄ¿ÖÐÒýÈëjar°ü£¬Ò»¶¨ÒªÒýÈëjdkϵÄjar°ü£¬·ñÔòÕÒ²»µ½dllÎļþ
    a) Copy win32com.dll to your <JDK>\bin directory
    b) Copy comm.jar to your <JDK>\lib directory.
    c) Copy javax.comm.properties to your <JDK>\lib directory.
    //×îºÃÔÚjreĿ¼ÖÐÒ²¿½±´Ò»´Î
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1.Welcome.java
import java.util.Date;
import java.util.Scanner;

public class Welcome {
/**
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*/
public static void main(String[] args){
// TODO Auto-generated method stub

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