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2009-07-26 15:50
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int a=3,b=4;
void exchange(int x,int y)
...{  
          int temp;
           temp=a;a=b;b=temp;   //ÊÔͼ½»»»a,b
}
exchange(a,b);
cout<<a<<" "<<b<<endl;
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void exchange(int *x,int *y)
{
         int temp;
          temp=*x;*x=*y;*y=temp;
}
   exchange(&a,&b);
   cout<<a<<" "<<b<<endl;
  
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ÔÙ¿´Á½¶Î´úÂ룺
#include<iostream>
using namespace std;
void test_point(int *p)
...{
     int a=3;
      p=&a;   // ²»Í¬Ö®´¦
}
int main()
...{
     int x=4;
     int *p1=&x;
      test_point(p1);
      cout<<*p1<<endl;
         return 0;
}
   
   
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#include<iostream>
using namespace std;
void test_point(int *p)
...{
     int a=3;
   &nb


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void GetMemory(char *p, int num)
{
p = (char *)malloc(sizeof(char) * num);
}
void Test(void)
{
char *str = NULL;
GetMemory(str, 100); // str ÈÔȻΪ NULL
strcpy(str, "hello"); // ÔËÐдíÎó
}
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Àí½â¸´ÔÓµÄC/C++ÉùÃ÷ const, typedef , º¯ÊýÖ¸Õë

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int n;
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int *p;
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*Ð͵ıäÁ¿£©£¬»òÕß˵pÊÇÒ»¸öÖ¸ÏòÒ»¸öintÐͱäÁ¿µÄÖ¸Õë¡£ÎÒÏëÔÚÕ ......

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C/C++Èí¼þ¹¤³Ìʦ¾ÍÒµÇóÖ°ÊÖ²á½Úѡһ

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2¡¢ÊýÖµµÄ½»»»
  //ʹÓÃÁÙʱ±äÁ¿
   void Swap1(int &a, int &b)
  {
      int temp = a;
      a = b;
   &nbs ......

Javaµ÷ÓÃC/C++ – JNI

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