Question

C++的简单类问题？

设计一个成绩类，属性包括学号、数学成绩、语文成绩，要求可以设置每门课的成绩，并能输出成绩。求代码？我是初学者，这个估计很简单，求高手把代码注释写详细点。
@伦落校园4914 :这个有一个错误。

Answer 1

#include<iostream>
using namespace std;
class Score
{
private:
int Num;
float math_Score;
float chn_Score;
public:
Score(float math,float chn);
void Set(int,int);
void Display();
};

//构造函数
Score::Score(float math,float chn)
{
math_Score = math;
chn_Score = chn;
}

void Score::Set(float mS,float cS)
{
math_Score = mS;
chn_Score = cS;
}

void Score::Diaplay()
{
cout<<"数学成绩为 : "<<math_Score<<endl;
cout<<"语文成绩为 : "<<chn_Score<<endl;
}

int main()
{
Score score(85.0,90.0);
score.Set(100.0,100.0);
score.Display();
return 0;
}

Answer 2

#include <iostream>
using namespace std;
class CSorce
{
private:
int m_nNum;
int m_nMath;
int m_nChinese;
public:
CSorce();
~CSorce();
void Set(int nMath,int nChinese);
void Dis();
};

CSorce::CSorce()
{}
CSorce::~CSorce()
{}
CSorce::Set(int nMath,int nChinese)
{
m_nMath = nMath;
m_nChinese = nChinese;
}
CSorce::Dis()
{
cout<<"math :"<<m_nMath<<"\t";
cout<<"Chinese:"<<m_nChinese<<endl;
}
void main()
{
CSorce sorce;
sorce.Set(99,80);
sorce.Dis();
}

Answer 3

就直接说x的运算过程吧,另外x=9/3 c*a/b 1 / 2吧? 根据运算顺序,首先计算的是这几个算式: (1)9/3 (2)c*a/b (3)1/2 其中算式(1