【c++程式】引用和重載

標籤：

#include<iostream>using namespace std;#include<string>void JiaoHuan(int *a,int *b){int t=*a;*a=*b;*b=t;}void JiaoHuan(int &a,int &b){int t=a;a=b;b=t;}void print(int& n){cout<<&n<<'\t'<<hex<<showbase<<n<<endl;}struct Window{string text;int x,y;int width,height;};void input(Window &r){cout<<"請輸入視窗的標題、xy座標、寬度和高度"<<endl;cin>>r.text>>r.x>>r.y>>r.width>>r.height;//return w;}void print(const Window &r){cout<<"======="<<r.text<<"======"<<endl;cout<<"從（"<<r.x<<','<<r.y<<"）到("<<r.x+r.width<<','<<r.y+r.height<<"）"<<endl;}int main(){Window w;input(w);print(w);int n=10;int m=20;JiaoHuan(&n,&m);//函數的重載cout<<"n="<<n<<"m="<<m<<endl;JiaoHuan(n,m);cout<<"n="<<n<<"m="<<m<<endl;void(*p)(int&,int&)=&JiaoHuan;p(n,m);cout<<"n="<<n<<"m="<<m<<endl;cout<<"&n="<<&n<<"&m="<<&m<<endl;print(m);print(n);/*int i;for(i=0;i<5;i++)//i僅在for（）中有效cout<<i<<endl;cout<<i<<endl;//輸出5*/    return 0;}

【c++程式】引用和重載