exam3.cpp

来自「C++语言程序设计题典」· C++ 代码 · 共 19 行

#include <iostream.h>
#include <string.h>
void swap(char *&x,char *&y)      //引用作为参数
{
	char *temp;
	temp=x;x=y;y=temp;
}
void main()
{
    char *ap="hello";
    char *bp="how are you?";
	cout << "ap:" << ap << endl;
	cout << "bp:" << bp << endl;
    swap(ap,bp);
	cout << "swap ap,bp" << endl;
	cout << "ap:" << ap << endl;
	cout << "bp:" << bp << endl;
}