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int change(int x,int y)
{
int temp=x;
x=y;
y=temp;
}
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int change(int *p,int *q)
{
int temp=*p;
*p=*q;
*q=temp;
}
ʹÓÃC++ÖеÄÒýÓÃÀàÐÍ´úÂëÈçÏÂ:
int change(int &x,int &y)
{
int temp=x;
x=y;
y=temp;
}
JAV ......

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#include <iostream>
using namespace std;
void main()
{
 char *p,*q;
 p = "abcde";
 q = p + 3;
 *q = 't';
 cout<<p<<endl;
 cout<<q<<endl;
}
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 *q = 't';
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