c++匿名类—指针

1 摘自网上

2代码实例

#include <iostream>
#include <list>
#include <iterator>
#include <cmath>

using namespace std;

class Term
{
public:
Term(int c,int e):coef(c),exp(e){

}
float TermValue();
int GetCoef()
{
return coef;
}
int GetExp()
{
return exp;
}
static void SetX(float x_t)
{
x=x_t;
}
int GetX()
{
return x;
}
private:
int coef;
int exp;
static float x;
};

float Term::x=1.0;

float Term::TermValue()
{
return coef*pow(x,exp);
}

int main()
{
list<Term> poly;
list<Term>::iterator begin,end;
int i;
float  result=0;
//此处使用了c++中匿名内部类，区分java，c++中new后是一个指针类型
for(i=1;i<5;i++) poly.push_back(Term(i,i));
begin=poly.begin();
end=poly.end();
begin->SetX(2);
do
{
result+=begin->TermValue();
begin++;
}while(begin!=end);
cout<<result<<endl;
}