简易学分管理，其中Score只读不许写
------------------
#include<iostream>
#include<stdlib.h>
#include<string>
using namespace std;
class Student
{
public:
void setName(string _name)
{
m_strName=_name;
}
string getName()
{
return m_strName;
}
void setGender(string _gender)
{
m_strGender=_gender;
}
string getGender()
{
return m_strGender;
}
int getScore()
{
return m_iScore;
}
void initScore()
{
m_iScore=0;
}
void study(int _score)
{
m_iScore+=_score;//m_iScore=m_iScore+_score;
}
private:
string m_strName;
string m_strGender;
int m_iScore;
};
int main (void)
{
Student stu;
stu.initScore();
stu.setName("zhangsan");
stu.setGender("女");
stu.study(5);
stu.study(3);
cout<<stu.getName()<<" "<<stu.getGender()<<" "<<stu.getScore()<<endl;
system("pause");
return 0;
}

#include<iostream>
using namespace std;
int getpower(int x,int y);
double getpower(double x,int y);
void main( ) {
int a,m;
double b;
cout<<"please input a int number: "<<"a=";
cin>>a;
cout<<"please input a double number: "<<"b=";
cin>>b;
cout<<"please input a power: "<<"m=";
cin>>m;
cout<<"a的m次方是："<<getpower(a,m)<<endl;
cout<<"b的m次方是："<<getpower(b,m)<<endl; }
int getpower(int x,int y) {
if(y>=0) {
if(y==0) return 1;
else if(y==1) return x;
else return x*getpower(x,y-1);
}
else return 0; }
double getpower(double x,int y) {
static double s=1;
if(y==0) return 1;
if(y>0)
{
s*=x;
getpower(x,--y);
}
if(y<0)
{
s*=1.0/x;
getpower(x,++y);
}
return s;
}

#include <stdio.h>
#include <stdlib.h>
#include<iostream>
using namespace std;
#define N 10
int Lock(void)
{
int a[N+1];
int i, j;
int s;
for(i = 1; i <= N; i++)
a[i] = 0;
for(i = 1; i <= N; i++)
{
j = i;
while(j <= N)
{
if(a[j])
{
a[j] = 0;
}
else
{
a[j] = 1;
}
j +=i;
}
}
s = 0;
for(i = 1; i <= N; i++)
{
if(a[i])
{
cout << "第 " << i << " 扇门是开着的." << endl;
}
else
{
s++;
cout << "第 " << i << " 扇门是关着的." << endl;
}
}
return s;
}
int main()
{
int i;
i=Lock();
printf("%d扇门中, %d扇门是关着的\n",N,i);
return 0;
}

~(*・_・)ノ⌒

#include <stdio.h>
void fun(int(*p)[3]){
int i,j,t;
for(i=0;i<3;i++)
for(j=i+1;j<3;j++)
{
t=*(*(p+i)+j);
*(*(p+i)+j)=*(*(p+j)+i);
*(*(p+j)+i)=t;
}
}
int main(){
int a[3][3]={{1,2,3},{4,5,6},{7,8,9}};
int i,j;
fun(a);
for(i=0;i<3;i++){
for(j=0;j<3;j++)
{
printf("%d ",*(*(a+i)+j));
}
printf("\n");
}
return 0;
}

#include<iostream>
using namespace std;
//字符串类CMyString代码…
class CMyString;
CMyString operator+ (const CMyString &S1, const CMyString &S2);
ostream & operator << (ostream &out, const CMyString &rhs);
class CMyString {
public :
CMyString ();
CMyString (const char *str);
CMyString (const CMyString &rhs);
friend CMyString operator+ (const CMyString &S1, const CMyString &S2);
CMyString & operator = (const CMyString &rhs);
friend ostream & operator << (ostream &out, const CMyString &rhs);
~CMyString () {
delete [] m_pBuffer;
}
char& operator [] (int index);
const char& operator [] (int index) const;
operator const char * () const;
private :
CMyString (int length) {
m_pBuffer = new char [length +1];
m_length = length;
}
char *m_pBuffer;
int m_length;
};
CMyString::CMyString ()
{
m_length = 0;
m_pBuffer = new char [1];
m_pBuffer [0] = '\0';
}
CMyString::CMyString (const char *str)
{
m_length = strlen (str);
m_pBuffer = new char [m_length +1];
strcpy (m_pBuffer, str);
}
CMyString::CMyString (const CMyString &rhs)
{
m_length = rhs.m_length ;
m_pBuffer = new char [m_length];
strcpy (m_pBuffer, rhs.m_pBuffer);
}
CMyString operator+ (const CMyString &S1, const CMyString &S2)
{
CMyString tempStr (S1.m_length + S2.m_length+1);
strcpy (tempStr.m_pBuffer, S1.m_pBuffer);
strcat (tempStr.m_pBuffer, S2.m_pBuffer );
return tempStr;
}
CMyString & CMyString::operator = (const CMyString &rhs)
{
if (this == &rhs)
return *this;
delete [] m_pBuffer;
m_length = rhs.m_length ;
m_pBuffer = new char [m_length +1];
strcpy (m_pBuffer, rhs.m_pBuffer);
return *this;
}
ostream & operator << (ostream &out, const CMyString &rhs)
{
out << rhs.m_pBuffer;
return out;
}
const char& CMyString::operator [] (int index) const
{
if (index < 0 || index > m_length) {
static char c;
return c;
}
return m_pBuffer [index];
}
char& CMyString::operator [] (int index)
{
if (index < 0 || index > m_length) {
static char c;
return c;
}
return m_pBuffer [index];
}
CMyString::operator const char * () const
{
return m_pBuffer;
}
int main()
{ CMyString S1("Good"), S2(" morning"), S3(" evening"), S;
S = S1 + S2;
cout << S << endl;
S = S1 + S3;
cout << S << endl;
return 0;
}