C++课程设计实验报告

面向对象程序设计实验学生姓名：指导教师：专业：班级：学号：实验一 VC6.0 环境入门与简单程序设计#includevoid main(void){cout<<"Hello!\n";cout<<"Welcome to C++!\n";}（2）#includeusing namespace std;const float PI=3.1416;void main(){int x;float radius,a,b,area;lab1:cout<<"1.圆形\n";cout<<"2.长方形\n";cout<<"3.正方形\n";cout<<"您要计算哪一种图形的面积？\n"; cout<<"您的选择： ";cin>>x;switch(x){case 1:cout << "圆的半径为:";cin>>radius;area=PI*radius*radius;cout<<"圆的面积为： "<<area<<endl; goto lab1;case 2:cout<<"矩形的长为：";cin>>a;cout<<"矩形的宽为：";cin>>b;area=a*b;cout<<"矩形的面积为： "<<area<<endl; goto lab1;case 3:cout<<"正方形的边长为：";cin>>a;area=a*a;cout<<"正方形的面积为： "<<area<<endl; goto lab1;default:cout<<"输入有误，请重新输入！";goto lab1;}#includeconst float PI=3.1416;void main(){int iType;float radius,a,b,area;cout<<”图形的类型？（1为圆形，2为长方形，3为正方形）：”；cin>>iType;switch(iType)case 1:cout << “圆的半径为：”; cin>>radius;area=PI*radius*radius;cout<<”面积为”<<area<<endl; break;case 2:cout<<”矩形的长为：”;cin>>a;cout<<”矩形的宽为：”;cin>>b;area=a*b;cout<<”面积为：”<<area<<endl; break;case 3:cout<<”正方形的边长为：”;cin>>a;area=a*a;cout<<”面积为：”<<area<<endl;break;default:cout<<”不是合法的输入值！”<<endl; }}实验二函数的应用（1）#includeusing namespace std;int main(){float f,c;cout<<"enter f:";cin>>f;c=(f-32)*5*1.0/9;cout<<"c:\n"<<c<<"\n";return 0;}（2）#includeint Max1(int x,int y){return x>y?x:y;}int Max1(int a,int b,int c){return (a>b?a:b)>c?(a>b?a:b):c;}double Max1(double a,double b){return a>b?a:b;}double Max1(double a,double b,double c){return (a>b?a:b)>c?( a>b?a:b):c;}int main(){int a,b,c,d,e,f;double g,h,i,j,k;cout<<"两个整数求最值:"; cin>>a>>b;cout<<Max1(a,b);cout<<"\n";cout<<"三个整数求最值:"; cin>>d>>e>>f;cout<<Max1(d,e,f);cout<<"\n";cout<<"两个小数求最值:"; cin>>g>>h;cout<<Max1(g,h);cout<<"\n";cout<<"三个小数求最值:";cin>>i>>j>>k;cout<<Max1(i,j,k);cout<<"\n";return 0;}（3）#includetemplateT Max1(T a=0,T b=0,T c=0) {return (a>b?a:b)>c?(a>b?a:b):c; }int main(){int a,b,c,d,e,f;double g,h,i,j,k;cout<<"两个整数求最值:"; cin>>a>>b;cout<<Max1(a,b);cout<<"\n";cout<<"三个整数求最值:"; cin>>d>>e>>f;cout<<Max1(d,e,f);cout<<"\n";cout<<"两个小数求最值:"; cin>>g>>h;cout<<Max1(g,h);cout<<"\n";cout<<"三个小数求最值:";cin>>i>>j>>k;cout<<Max1(i,j,k); cout<<"\n";return 0;}（4）#include#includeusing namespace std; int main(){int x,y;cout<<"enter x:";cin>>x;cout<<"enter y:";cin>>y;cout<<"输出:\n"<<pow(x,y)<<endl; return 0;}（5）#includeint fib(int n);int main(){int n,answer;cout<<"Enter number:";cin>>n;cout<<"\n\n";answer=fib(n);cout<<answer<<"is the "<<n<<"th Fibonnaci number\n"; return 0;}int fib(int n){if(n<3) return 1;else return fib(n-2)+fib(n-1);}实验三类与对象（1）#includeenum CPU_Rank{P1=1,P2,P3,P4,P5,P6,P7}; class CPU{private:CPU_Rank rank;int frequency;float voltage;public:CPU(CPU_Rank r,int f,float v){ rank=r;frequency=f;voltage=v;cout<<"构造了一个CPU!"<<endl;}~CPU(){cout<<"析构了一个CPU!"<<endl;} CPU_Rank GetRank()const{return rank;}int GetFrequency()const{return frequency;}float GetVoltage()const{return voltage;}void SetRank(CPU_Rank r){rank=r;}void SetFrequency(int f){frequency=f;}void SetVoltage(float v){voltage=v;}void Run(){cout<<"CPU开始运行!"<<endl;} void Stop(){cout<<"CPU停止运行!"<<endl;} }; void main(){CPU a(P6,300,2.8);a.Run();a.Stop();}（2）#includeenum CPU_Rank{P1=1,P2,P3,P4,P5,P6,P7}; class CPU{private:CPU_Rank rank;int frequency;float voltage;public:CPU(CPU_Rank r,int f,float v){ rank=r;frequency=f;voltage=v;cout<<"构造了一个CPU!"<<endl;}~CPU(){cout<<"析构了一个CPU!"<<endl;}CPU_Rank GetRank()const{return rank;}int GetFrequency()const{return frequency;}float GetVoltage()const{return voltage;}void SetRank(CPU_Rank r){rank=r;}void SetFrequency(int f){frequency=f;}void SetVoltage(float v){voltage=v;}void Run(){cout<<"CPU开始运行!"<<endl;}void Stop(){cout<<"CPU停止运行!"<<endl;} }; class RAM{int x;public:RAM(int a){x=a;cout<<"构造了一个RAM!"<<endl;}~RAM(){cout<<"析构了一个RAM!"<<endl;}};class CDROM{char y;public:CDROM(char v){y=v;cout<<"构造了一个CDROM!"<<endl;}~CDROM(){cout<<"析构了一个CDROM!"<<endl;} };class Computer{ CPU a;RAM b;CDROM c;public:Computer(CPU_Rank x,int y,float z,int xx,char yy):a(x,y,z),b(xx),c(yy){cout<<"构造了一个Computer!"<<endl;}~Computer(){cout<<"析构了一个Computer!"<<endl;}void Run(){cout<<"Computer开始运行!"<<endl;}void Stop(){cout<<"Computer停止运行!"<<endl;} }; void main(){Computer niu(P6,3,2.9,4,'G');niu.Run();niu.Stop();}实验四C++程序结构1)(2)#includeusing namespace std;class Client{private:static char SeverName[10];static int Clientnum;public:Client(){cout<<"Client构造函数被调用"<<endl; Clientnum++;}~Client(){cout<<"Client析构函数被调用"<<endl; Clientnum--;}static void ChangeServername(){cout<<"请输入服务器的名字："<<endl; cin>>SeverName;}void show();};int Client::Clientnum=0;char Client::SeverName[10]="abcd";//Client.cppvoid Client::show(){cout<<"该用户机的服务器端名字是:"<<endl; cout<<SeverName<<endl;cout<<"用户数量有： "<<endl; cout<<Clientnum<<endl;}//Client.exevoid main(){Client::ChangeServername(); Client a;a.show();Client::ChangeServername(); Client b;b.show();Client::ChangeServername(); Client c;c.show();}实验五数组、指针与字符串#includeusing namespace std;void PT(int a[3][3], int m, int n) {int i,j,k;for(i=0;i<m;i++)for(j=0;j<n;j++){k = a[i][j];a[i][j] = a[j][i];a[j][i] = k;}}int main(){cout<<"请输入原始二维数组:"<<endl; int a[3][3],i,j;for(i=0;i<3;i++)for(j=0;j<3;j++)cin>>a[j][i];cout<<endl;PT(a,3,3);cout<<"该数组的转置为:"<<endl;for(i=0;i<3;i++){for(j=0;j<3;j++)cout<<a[i][j]<<" "; cout<<endl;}}实验六继承与派生（1）#includeusing namespace std;class Animal{public:Animal(){}~Animal(){}int age;};class Dog:public Animal{ public:Dog(){}~Dog(){}void SetAge(){cout<<"The dog's age is:"; cin>>age;}void GetAge(){cout<<"The dog's age is:\n"<<age<<endl; }};int main(){Dog dog;dog.SetAge();dog.GetAge();return 0;}（2）#includeusing namespace std;class BaseClass{public:int Number;BaseClass(){}BaseClass(int);};class DerivedClass:public BaseClass{ public:int Number_derived;DerivedClass(){}DerivedClass(int);};BaseClass::BaseClass(int num){Number = num;cout<<Number<<endl;cout<<"BaseClass"<<endl;}DerivedClass::DerivedClass(int num) {Number_derived = num;cout<<Number_derived<<endl; cout<<"DerivedClass"<<endl;}int main(){BaseClass Base(12);DerivedClass DBase(28);return 0;}（3）#includeclass vehicle{ private:int price;int weight;public:void run(){cout<<" price"<<endl; }void stop(){cout<<" weight"<<endl;}};class biycle:virtual public vehicle {private:int wide;public:void xx(){cout<<" wide"<<endl;run();stop();}};class motorcar:virtual public vehicle{private:int high;public:void yy(){cout<<" high"<<endl;run();stop();}};class motorcycle:public biycle,public motorcar {public:void zz();};void motorcycle::zz() {xx();yy();}int main(){motorcycle c;c.zz();return 0;}实验七多态性（1）#includeclass point {public:point(){r=0;i=0;}point (int x,int y){r=x; i=y;} point& operator++( );point& operator++( int ); ostream& display();protected:int r , i ;};point& point ::operator++( ) {r++;i++;return *this;}point& point:: operator++(int ){++r;++i;return *this;}ostream& point ::display(){return cout<<"("<<r<<","<<i<<")"<<endl; }void main()point s(2,4),d(5,1),f,x;f=s++;f.display();x=++d;x.display();}（2）#includeusing namespace std;class vehicle{public:virtual void Run(){cout<<"Run * vehicle\n";} virtual void Stop(){cout<<"Stop * vehicle\n";}class motorcar:public vehicle{public:void Run(){cout<<"Run * motorcar\n";} virtual void Stop(){cout<<"Stop * motorcar\n";} };class bicycle :public vehicle{public:virtual void Run(){cout<<"Run * bicycle\n";}void Stop(){cout<<"Stop * bicycle\n";}};class motorcycle:public bicycle,public motorcar{ public:void Run(){cout<<"Run * motorcycle\n";}void Stop(){cout<<"Stop * mototrcycle\n";}void main(){ vehicle v1; bicycle b1; motorcar m1; motorcycle mo; vehicle *p=&v1; p->Run();p->Stop();p=&b1;p->Run();p->Stop();p=&m1;p->Run();p->Stop();}实验八面向对象综合实验#include<iostream>#include<cmath>using namespace std;class counter{private:int n; //计算输入数组的长度double a[100];// 存放数据的数组char fh[100]; //存放字符的数组public:input(); //输入函数suanfa(); //四则运算“+、-、*、/、”show(); //显示函数};counter ::input(){cout<<"请输入表达式,并且以“=”结尾"<<endl;for(int i=0;i<100;i++){cin>>a[i];cin>>fh[i];if(fh[i]=='=') //"="为结束符标志{n=i;break;}}}counter ::suanfa(){char sign;for(int j=0;j<n;j++){if(fh[j]=='*') //乘法运算{if(fh[j-1]=='+')//乘法的优先级{a[j+1]=a[j]*a[j+1];a[j]=0;fh[j]='+';}else if(fh[j-1]=='-'){a[j+1]=-a[j]*a[j+1];a[j]=0;fh[j]='+';}else a[j+1]=a[j]*a[j+1];}else if(fh[j]=='/') //除法运算{if(fh[j-1]=='+')//除法的优先级{if(a[j+1]!=0){a[j+1]=a[j]/a[j+1];a[j]=0;fh[j]='+';}else{cout<<"除数为0，退出程序！"<<endl; //除数为零exit(0);}}else if(fh[j-1]=='-'){if(a[j+1]!=0){a[j+1]=-a[j]/a[j+1];a[j]=0;}else{cout<<"除数为0，退出程序！"<<endl;exit(0);}}else{if(a[j+1]!=0){a[j+1]=a[j]/a[j+1];}else{cout<<"除数为0，退出程序！"<<endl;exit(0);}}}}for(int i=0;i<n;i++){if(fh[i]=='+') //加法运算a[i+1]=a[i]+a[i+1];else if(fh[i]=='-') //减法运算{if(a[i]<a[i+1]){a[i+1]=-(a[i+1]-a[i]);}elsea[i+1]=a[i]-a[i+1];}}}counter ::show() //输出函数{cout<<"该表达式的结果为：";cout<<a[n]<<endl;}void read() //程序说明{cout<<"\t\t*************************************************** *\n";cout<<"\t\t* C++课程设计*\n";cout<<"\t\t* 实验题目：简单的计算器*\n";cout<<"\t\t*************************************************** *\n";cout<<"\n说明:可以进行四则混合运算，但是不能进行括号优先级运算\n";cout<<endl;}int main(){char sign;counter b;read();b.input();b.suanfa ();b.show ();while(true){cout<<"是否继续？输入y表示继续，n表示退出"<<endl;cin>>sign;if(sign=='y'){b.input();b.suanfa ();b.show ();}else{break;}}return 0;}。