C++通過引用來傳遞和返回類對象__C++

/*C++通過引用來傳遞和返回類對象*/#include <iostream>using namespace std;class MacBook{public://定義  void setprice(double p);  double getprice();  void settitle(char * p);  char * gettitle();private:  double price;  char * title;};//實現void MacBook::setprice(double p){  price = p;}double MacBook::getprice(){  return price;}void MacBook::settitle(char * p){  title = p;}char * MacBook::gettitle(){  return title;}//顯示void display(MacBook & b){  cout << b.gettitle() << "的價錢為: " << b.getprice() <<" RMB"<<endl;}MacBook & init(char *t,double p)//通過引用返回對象{  static MacBook b;  b.setprice(p);  b.settitle(t);  return b;}int main(){  MacBook Alan;  char c[20] = {0};  string s = "Mac2016款";  memcpy(c,s.c_str(),strlen(s.c_str()));//string->char*  Alan = init(c,10800);  display(Alan);  return 0;}