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£¨1£©³ÌÐòtestMyDll .javaÈçÏ£º
public class testMyDll {
 private native static int myadd(int a,int b);
 static {
  System.loadLibrary("javamydll");  //¸Ã¶¯Ì¬¿âÃû³ÆÎªÖм䶯̬¿â£¬ÓÉjava³ÌÐòʹÓ㬸ºÔðµ÷ÓÃÐèҪʹÓõĶ¯Ì¬¿â¡£
 }
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  System.out.println(myadd(4,5));
 }
}
£¨2£©±àÒëtestMyDll .java³ÌÐò£¬¼ì²éÊÇ·ñ´æÔÚ´íÎó¡£
  javac testMyDll .java
2¡¢Éú³ÉÍ·ÎļþtestMyDll.h£¬¹©Éú³ÉÖм䶯̬¿âʹÓá£
  javah testMyDll
3¡¢Éú³ÉÖм䶯̬¿âjavamydll.dll
£¨1£©Ê¹ÓÃvc¹¤¾ßÏÈÉú³Éwin32 Dynamic-Link Library¿Õ¹¤³Ì
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£¨3£©Ìí¼Óµ÷ÓÃÐèҪʹÓõĶ¯Ì¬¿âµÄʵÏÖÎļþtestMyDll.cpp
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//testMyDll.cpp
#include <windows.h>
#include "testMyDll.h"
typedef int (*padd)(int,int);
JNIEXPORT jint JNICALL Java_testMyDll_myadd
  (JNIEnv * a, jclass b, jint x, jint y)
{
 HINSTANCE hins = ::LoadLibrary("mydll.dll");
 if(hins == NULL)
 {
  return 0;
 }
 int res;
 padd pa = (padd)GetProcAddress(hins,"myadd");
 if(pa != NULL)
 {
  res = x+y;
 }
 ::FreeLibrary(hins);
 return res;
}
£¨4£©±àÒëÉú³ÉÖм䶯̬¿âjavamydll.dll
4¡¢½«Öм䶯̬¿âjavamydll.dllºÍÐèʹÓõĶ¯Ì¬¿âmydll.dll·ÅÔÚtestMyDll.classĿ¼Ï£¬ÔËÐиÃÀà:  java testMyDll
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public class JavaDemo06
{
public static void main(String args[])
{
printTab() ;
}
// ¶¨ÒåÒ»¸ö·½·¨£¬´Ë·½·¨ÓÃÓÚ´òÓ¡Hello World
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////////////////////////////////////////////////½ÚµãÀà TreeNode.java    //////////////////////////
package com.tree;
    class TreeNode {//°ü·ÃÎÊȨÏÞ
    long data ;
    long x,y;
    String adrr;
    Tre ......
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