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SAP
ÌṩÁËBAPI(Business Application Programming
Interface)£¬BAPIÊÇSAPϵͳ¶ÔÍâÌṩµÄһϵÁнӿÚ,Ö÷ÒªÊÇʹµÚÈý·½³ÌÐòͨ¹ýÕâЩ½Ó¿ÚÀ´Ê¹ÓÃSAP,´Ó¶ø·½±ã¿Í»§¶¨ÖÆijЩ³Ì
Ðò.VB,Java,C,C++µÈ¶¼¿ÉÒÔͨ¹ýBAPIÀ´·ÃÎÊSAP.BAPIÊÇͨ¹ýR/3ϵͳÉϵÄRFC(Remote function
call)¹¦ÄÜÀ´ÊµÏÖµÄ.ÒòΪBAPIµÄÇ¿´ó¹¦ÄÜ×÷Ϊ»ù´¡,SAP¾ÍÍêÈ«¿ÉÒÔÑ¡ÔñJavaÔÚCRMÉϼÓÇ¿¸÷ÖÖ¹¦ÄÜ,±ÈÈç¿ÉÒÔÓÃJava¿ìËÙ¿ª·¢Ò»¸öʵÏÖÌØ
¶¨¹¦ÄܵĿͻ§¶Ë¡£Õë¶ÔJava£¬SAPÒ²ÌṩÁËÒ»¸öAPI½ÐJava Connector(JCo),¿ÉÒÔʹÓÃËü·½±ãµÄµ÷ÓÃBAPIÌṩµÄ½Ó¿Ú¡£
¾ÙÀý˵Ã÷ £ºÔÚÎÒÃǵÄijһ¸öÏîÄ¿ÖУ¬ÐèҪÿ¸öÔ´ÓR3È¡³ö¹©Ó¦É̵ļÄÊۺͷǼÄÊÛ»ã×ܽáËãÊý¾ÝºÍÃ÷ϸÊý¾Ý£¬Õ¹ÏÖÔÚ¹©Ó¦ÉÌÐÅϢƽ̨ÉÏ£¬¹©¹©Ó¦ÉÌ¿ª·¢Æ±ºÍ²ÆÎñ²¿¸¶¿î½øÐнáË㣬ÄÇô¿ÉÒÔ×öÒ»¸ö¶¨Ê±Æ÷£¬Í¨¹ýRFCÔÚÿ¸öÔµÄÒ»ºÅ0µã½«½áËãÊý¾ÝÈ¡³ö¡£
private final static String FUNCTION_GET_NONVMI_DATA = "ZPUR_DATA_GET_TMP1";
 /**
  * ´¦Àí½Ó¿Ú²ÎÊý
  */
 private JCO.ParameterList getNonVmiTableParameterList(
   JCO.Client aConnection, String bukr, String month, String start,
   String end, String lifnr) {
  IRepository aRepository = new JCO.Repository("SAPRep", aConnection);
  IFunctionTemplate functionTemplate = aRepository
    .getFunctionTemplate(FUNCTION_GET_NONVMI_DATA);
  logger.debug("FunctionTemplate=" + functionTemplate);
  JCO.Function function = new JCO.Function(functionTemplate);
  JCO.ParameterList input = function.getImportParameterList();
  input.getField("BUKRS").setValue(bukr);
  //input.getField("SPMON").setValue(month);
  input.getField("LIFNR").setValue(lifnr);
  input.getField("ZBUDATB").setValue(start);
  input.getField("ZBUDATN").setValue(end);
  logger.debug("ImportParameterList=" + input);
  aConnection.execute(function);
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¶þ²æÊ÷ (Binary Tree) µÄ»ù±¾²Ù×÷ (Java)

package algorithm.binarytree;
import java.util.Arrays;
import java.util.Stack;
import util.ArrayUtil;
import util.OutputUtil;
public class BinTree {
    private BinNode root = null;
    public BinTree()
    {
    }
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