DOS界面改变
1.change the DOS title
windows+r->cmd->title [what you want]
2.change the DOS prefix
windows+r->cmd->prompt [what you want]
3.change the DOS background's color
windows+r->cmd->color [bf]
(PS:b is representing background's color，you can input the code of...
类和对象综合训练
#include <iostream>
using namespace std;
class CPoint
{
public:
int x1;
int y1;
void output();
CPoint();//构造
CPoint(int x2,int y2);//重载
~CPoint();//析构
private:
int x2;;
int y2;
int *pCount;
};
void CPoint::output()
{
if(pCount)
(*pCount)++;
else
{
pCount=new ...
构造函数重载
#include <iostream>
using namespace std;
class point
{
private:
double fx,fy;
public:
point();//不带参
point(double fx,double fy);//带参
void showpoint();
};
point::point()
{
fx=0.0;
fy=0.0;
}
point::point(double x,double y=5.0)
{
fx=x;
fy=y;
}
void point::showpoint()
{
...
定义类的成员函数的实现
#include <iostream>
#include <string>
using namespace std;
class Cbook
{
private:
char *m_pczName;
int m_nPages;
int m_nEdition;
public:
void GetBookName(char *pName);
int GetTotalPages();
int GetBookEdition();
private:
void SetBookName(char *pName);
void SetTotalPages(int ...
字符串指针的应用
#include <iostream>
#include <string>
using namespace std;
int main()
{
char str1[100]="hello";
char *str2="C++";
char *str;
int i=0;
cout<<"str2="<<str2<<endl;
str=strcat(str1,str2);
cout<<"strcat(str1,str2)="<<str<<endl;
i=strcmp(str1,str2);
cout<<"strcmp(str1,str2)="<<i<<...
数组倒序输出
#include <iostream>
using namespace std;
int main()
{
int a[5];
int i,j;
cout<<"please input five data"<<endl;
for(i=0;i<5;i++)
cin>>a[i];
cout<<"convert data :"<<endl;
for(j=4;j>=0;j--)
cout<<a[j]<<"\t";
cout<<endl;
return 0;
}
圆周长面积计算
#include <iostream>
const double PI=3.14;
using namespace std;
double fcir_l(double r)
{
double cir_l;
cir_l=2*PI*r;
return cir_l;
}
double fcir_s(double r)
{
double cir_s;
cir_s=PI*r*r;
return cir_s;
}
int main()
{
double radius, cir_l,cir_s;
int i...
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