C++程序设计编程实例大全.doc

C++程序编程实例大全
#include
int main()
{
std::cout<<"hello world!";
}
#include "iostream"
using namespace std;
void main()
{
int *p;
p=new int;
*p=5;
/*p=new int(5);*/
cout<<*p;
delete p;
}
#include "iostream"
using namespace std;
void main()
{ char name[10];
cout<<"please input your name:";
cin>>name;
cout<<"the name is "<>name;
cout<<"how old are you:";
cin>>age;
cout<<"the name is "<>n;
student wang;
wang.no=n;
cin>>wang.math;
cout<>n;
if((p=new int[n])==0)
{
cout<<"can't allocate more memory, terminating"<de "iostream"
using namespace std;
void main()
{
int *p;
int n;
cout<<"please input the length of the array: ";
cin>>n;
if((p=new int[n])==0)
{
cout<<"can't allocate more memory, terminating"<nt i=0;i
using namespace std;
float a=2.4;
void main()
{
int a=8;
cout<
void main()
{
int num=50;
int &ref=num;
ref+=10;
cout<<"num="<
/* Note:Your choice is C IDE */
#include
void main()
{
int num;
int &ref=num;
num=5;
cout<<"num="<
//using namespace std;
void main)
/*{
double radius;
cout<<"please input radius:";
cin>>radius;
double result=radius*radius*3.14*4;
cout<<"The result is "<<(double)result<<"\n";
}
*/
{
double radius;
std::cout<<"please input radius: ";
std::cin>>radius;
std::cout<<"The result is "<n";
}
/* Note:Your choice is C IDE */
#include
using namespace std;
int array[6][4]={{60,80,90,75},{75,85,65,77},{80,88,90,98},{89,100,78,81},{62,68,69,75},{85,85,77,91}};
int &level(int grade[],int size,int &tA,int &tB );
void main()
{
int typeA=0,typeB=0;
int student=6;
int gradesize=4;
for(int i=0;i sum+=grade[i];
sum/=size;
if(sum>=80)
return tA;
else
return tB;
}
/* Note:Your choice is C IDE */
#include
using namespace std;
float &fn2(float r)
{
float t;
t=3.14*r*r;
return t;
}
void main()
{
fn2(5.0)=12.4;
cout<l;
}
/* Note:Your choice is C IDE */
#include
#include
using namespace std;
void main()
{
string s,t;
cout<<"please input a zifuchuan:"<>s;
t="I like programming!";
cout<<"zifuchuan output:"<
using namespace std;
inline double circumference(double radius);
void main()
{
double r=3.0,s;
s=circumference(r);
cout<<"the circumference is "<2*3.1415926*radius;
}
/* Note:Your choice is C IDE */
#include
int add(int x,int y)
{
int sum;
sum=x+y;
return sum;
}
int add(int x,int y,int z)
{
int sum;
sum=x+y+z;
return sum;
}
void main()
{
int a,b;
a=add(5,10);
b=add(5,10,20);
cout<<"a="<
#include
#define PI 3.1415926535
#define CS Circle_Square
template
double Circle_Square(T x)
{
return x*x*PI;
}
double Circle_Square(long x)
{
return x*x*PI;
}
void main()
{
int r1=1;
double r2=2.0;
long r3=3;
cout<<"The first cs is "<
void main()
{
int i=0,&l=i,&k=l;
i=++l-k;
cout<<"i="<
class Tdate
{
public:
void set(int,int,int);
int isLeapYear();
void print();
private:
int month;
int day;
int year;
};
void Tdate::set(int m,int d,int y)
{
month=m;day=d;year=y;
}
int Tdate::isLeapYear()
{
return((year%4==0&&year%100!=0)||(year%400==0));
}
void Tdate::print()
{
cout<
class Tdate
{
public:
void set(int,int,int);
int isLeapYear();
void print();
private:
int month;
int day;
int year;
};
void Tdate::set(int m,int d,int y)
{
month=m;day=d;year=y;
}
int Tdate::isLeapYear()
{
return((year%4==0&&year%100!=0)||(year%400==0));
}
void Tdate::print()
{
cout<oid someFunc(Tdate& refs)
{
refs.print();
if(refs.isLeapYear())
cout<<"error"<print();
if((*pTdate).isLeapYear())
cout<<"error"<ndl;
someFunc(s);
}
#include
using namespace std;
void sphere();
int main()
{
sphere();
}
void sphere()
{
double radius;
cout<<"please input radius:";
cin>>radius;
if(radius<0) return;
cout<<"the result is "<r choice is C IDE */
#include
const int SIZE=10;
class Cstack
{
private:
char stk[SIZE];
int position;
public:
void init()
{
position=0;
}
char push(char ch);
char pop();
};
char Cstack::push(char ch)
{
ifposition==SIZE)
{
cout<<"栈满"< main()
{
Cstack s;
s.init();
char ch;
cout<<"please input some characters:"<>ch;
while(ch!='#'&&s.push(ch))
cin>>ch;
cout<e
class Tdate
{
public:
void set(int m=5,int d=16,int y=1991)
{
month=m;day=d;year=y;
}
void print()
{
cout<t(3);
c.set(8,10);
a.print();
b.print();
c.print();
}
/* Note:Your choice is C IDE */
#include
class cube
{
public:
int volume(int ht,int wd)
{
return ht*wd;
}
int volume(int ht,int wd,int dp)
{
return ht*wd*dp;
}
private:
int ht,wd,dp;
};
void main()
{
cube c;
cout<
class queue
{/*默认私有*/
int q[100];
int sloc,rloc;
public:
queue();
void qput(int i);
int qget();
}
queue::queue()
{
sloc=rloc=0;
cout<<"queue initialized"< is empty"< choice is C IDE */
#include
class test
{
private:
int num;
float f1;
public:
test();
test(int n,float f);
int getint()
{
return num;
}
float getfloat()
{
return f1;
}
};
test::test()
{
cout<<"Initializing default"<
num=0;
f1=0.0;
}
test::test(int n,float f)
{
cout<<"Initializing"<
class Tdate
{
public:
Tdate(int m=5,int d=16,int y=1990)
{
month=m;day=d;year=y;
cout<ay(3,12);
Tdate dday(1,22,1998);
}
/* Note:Your choice is C IDE */
#include
#include
using namespace std;
class Student
{
public:
Student(char *pName)
{
cout<<"call one parameter constructor"< name[sizeof(name)-1]='\0';
cout<<"the name is "<IDE */
#include
using namespace std;
class test
{
private:
int num;
float f1;
public:
test();
test(int n,float f);
int getint()
{
return num;
}
float getfloat()
{
return f1;
}
};
test::test()
{
cout<<"Initializing default"<
using namespace std;
class test
{
private:
int num;
float f1;
public:
test(int n);
test(int n,float f);
};
inline test::test(int n)
{
cout<<"Initializing\t"< num=n;
}
test::test(int n,float f)
{
cout<<"Initializing\t"<ce is C IDE */
#include
using namespace std;
class test
{
private:
int num;
float f1;
public:
test(int n);
test(int n,float f);
};
inline test::test(int n)
{
cout<<"Initializing\t"<<"Initializing\t"<
using namespace std;
int main()
{
for(int i1;i<=10;i++)
{
for(int j=1;j<=i;++j)
cout<<"M";
cout<
class Tdate{
public:
Tdate(int m=5,int d=16,int y=1990)
{
month=m;day=d;year=y;
cout< int year;
};
void main()
{
Tdate aday;
Tdate bday(2);
Tdate cday(3,12);
Tdate dday(1,21,1998);
}
#include
#include
using namespace std;
void main()
{
try
{
exception theError;
throw(theError);
}
catch(const exception &theError)
{
cout<
#include
using namespace std;
class Person
{
public:
Person(char *na)
{
cout<<"call constructor"< }
void printname()
{
cout<
using namespace std;
class SillyClass
{
public:
SillyClass(int&i):te