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Ê×ÏÈ£¬ÎÒÃÇÒª´ÓSUNµÄÍøÕ¾ÏÂÔØJava communications API×îеİü(javacomm20-win32.zip)£¬È»ºó½âѹËõÔÚcommapiĿ¼Ï£¬½øÈëcommapiĿ¼ÖУ¬ÎÒÃÇ¿ÉÒÔ¿´µ½win32com.dll£¬comm.jar£¬javax.comm.properties Èý¸öÎļþ¡£ÔÚÕýȷʹÓÃJava communications API֮ǰ£¬ÎÒÃDZØÐëÏÈÅäÖÃJava communications APIÔÚJDK1.4.2ÔËÐл·¾³ÖС£ÎÒÃǼٶ¨JDK1.4.2µÄ°²×°Ä¿Â¼Îª"C:\java142"¡£
 
1. ¸´ÖÆ win32com.dll µ½ C:\java142\bin
2. ¸´ÖÆ comm.jar µ½ C:\java142\jre\lib\ext
3. ¸´ÖÆ javax.comm.properties µ½ C:\java142\jre\lib£¬javax.comm.properties Ò»¶¨Òª°²×°£¬·ñÔò£¬ÎÒÃǽ«ÕÒ²»µ½ÏµÍ³ÖеÄÈκβ¢Ðж˿ڡ£
 
ÏÖÔÚ£¬ÎÒÃÇÒѾ­Íê³ÉÁËcomm.jar µÄ°²×°¹¤×÷£¬¿ÉÒÔ²âÊÔÎÒÃǵijÌÐòÁË¡£ÏÂÃæÎÒ½«¸ø³öÎÒдµÄÒ»¸ö¼òµ¥µÄÀý×Ó£ºSimpleLPTPort.java
 
---------- BEGIN SOURCE ----------
import java.io.*;
import java.util.*;
import javax.comm.*;
public class SimpleLPTPort  {
       Enumeration ports;
       CommPortIdentifier portId;
      
       ParallelPort LPTPort;
      
    protected OutputStream out;
   
    String outPrintStr = "When an \n\rinput method \n\ris activated, ";
       public SimpleLPTPort() {
              checkLPTPort();
       }
      
       public void checkLPTPort() {
             
              ports = CommPortIdentifier.getPort


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