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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;
}
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int change(int &x,int &y)
{
int temp=x;
x=y;
y=temp;
}
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int change(int x,int y)
{
x=x+y;
y=x-y;
x=x-y;
}
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//ÎļþµÄ´ò¿ª
import java.awt.FileDialog;
import java.awt.event.*;
import java.io.*;
import java.io.File;
import java.io.FileReader;
public class FileOpen {
private FileDialog filedialog_open;
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