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#include <iostream.h>
void main()
{
    double fristnum;
    char sop;
    double secondnum;
    int frist;
    int second;
    cout<<"请输入表达式："<<endl;
    cin>>fristnun>>sop>>secondnum;
    cout<<"结果："<<calc(fristnum,sop,secondnum)<<endl;
}
double calc(double fristnum,char sop,double secondnum)
{
    calculator *pcalc=NULL;
    pcalc=judge(fristnum,sop,secondnum);
    double frusult=pclac->result();
    delete pcalc;
    return fresult;
}
class calcultor
{
public:
    double data1();
    {
        return m_fdata1;
    }
    void setdata1(double fristnum)
    {
        m_fdata1=fristnum;
    }
    double data2();
    {
        return m_fdata2;
    }
    void setdata2(double secondnum)
    {
        m_fdata2=secondnum;
    }
    double result() const=0;
private:
    double m_fdata1,m_fdata2;
};
calcultor *judge(double fristnum,char sop,double secondnum)
{
    calcultor *pcalc=NULL;
    if(sop='+')
        pcalc=new add();
    else if(sop='-')
        pcalc=new sub();
    else if(sop='^')
        pcalc=new power();
    else if(sop='%')


        pcalc=new compement();
    else
        throw string("不可识别的运算符！");
    pcalc->setdata1(fristnum);
    pcalc->setdata2(secondnum);
    return pcalc;
}
class add:public calcultor
{
public:
    add(double fristnum=0.,double secondnum=0.)
    {
        calcultor(fristnum,secondnum);
    }
    double result() const
    {
        return data1()+data2();
    }
};
class sub:public calcultor
{
public:
    sub(double fristnum=0.,double secondnum=0.)
    {
        calcultor(fristnum,secondnum);
    }
    double result() const
    {
        return data1()-data2();
    }
};
class power:public calcultor
{
public:
    power(double fristnum=0.,double secondnum=0.)
    {
        calcultor(fristnum,secondnum);
    }
    double result() const
    {
        return data1()^data2();
    }
};
class complement:public calcultor
{
public:
    complement(double fristnum=0.,double secondnum=0.)
    {
        calcultor(fristnum,secondnum);
    }
    double result() const
    {
        return data1()%data2();
    }
};
报的错是calnew.cpp(63) : error C2143: syntax error : missing ';' before '}'
不知为啥？求指导~

[ 本帖最后由 ll564992764 于 2011-10-15 20:24 编辑 ]

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第 2 楼

得分:0

貌似错误好多呀。

第 3 楼

得分:0

错误太多，有些单词的前后拼写都不一致，我彻底放弃帮你修改了，你还是练练基本功吧

第 4 楼

得分:0

回复 2楼 nomify

求指导！有高分哦！

第 5 楼

得分:0

回复 3楼 mengcan555

别啊~我才学的C++啊~

第 6 楼

得分:0

#include <iostream.h>
void main()
{
    double fristnum;
    char sop;
    double secondnum;
    int frist;
    int second;
    cout<<"请输入表达式："<<endl;
    cin>>fristnum>>sop>>secondnum;
    cout<<"结果："<<calc(fristnum,sop,secondnum)<<endl;
}
double calc(double fristnum,char sop,double secondnum)
{
    calculator *pcalc=NULL;
    pcalc=judge(fristnum,sop,secondnum);
    double frusult=pclac->result();
    delete pcalc;
    return fresult;
}
class calculator
{
public:
    double data1();
    {
        return m_fdata1;
    }
    void setdata1(double fristnum)
    {
        m_fdata1=fristnum;
    }
    double data2();
    {
        return m_fdata2;
    }
    void setdata2(double secondnum)
    {
        m_fdata2=secondnum;
    }
    double result() const=0;
private:
    double m_fdata1,m_fdata2;
};
calculator *judge(double fristnum,char sop,double secondnum)
{
    calculator *pcalc=NULL;
    if(sop='+')
        pcalc=new add();
    else if(sop='-')
        pcalc=new sub();
    else if(sop='^')
        pcalc=new power();
    else if(sop='%')


        pcalc=new compement();
    else
        throw string("不可识别的运算符！");
    pcalc->setdata1(fristnum);
    pcalc->setdata2(secondnum);
    return pcalc;
}
class add:public calculator
{
public:
    add(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result() const
    {
        return data1()+data2();
    }
};
class sub:public calculator
{
public:
    sub(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result() const
    {
        return data1()-data2();
    }
};
class power:public calculator
{
public:
    power(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result() const
    {
        return data1()^data2();
    }
};
class complement:public calculator
{
public:
    complement(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result() const
    {
        return data1()%data2();
    }
};
这是改过拼写错误的~

第 7 楼

得分:10

程序代码：

#include <iostream.h>
#include <cmath>
#include <stdexcept>

class calculator
{
public:
    calculator(double fristnum=0.,double secondnum=0.) :
      m_fdata1(fristnum),m_fdata2(secondnum) {}
       
    double data1()
    {
        return m_fdata1;
    }
    void setdata1(double fristnum)
    {
        m_fdata1=fristnum;
    }
    double data2()
    {
        return m_fdata2;
    }
    void setdata2(double secondnum)
    {
        m_fdata2=secondnum;
    }
    virtual double result()
    {
        return 0;
    }
private:
    double m_fdata1,m_fdata2;
};

class add:public calculator
{
public:
    add(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result()
    {
        return data1()+data2();
    }
};
class sub:public calculator
{
public:
    sub(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result()
    {
        return data1()-data2();
    }
};
class power:public calculator
{
public:
    power(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result()
    {
        return pow(data1(),data2());
    }
};
class complement:public calculator
{
public:
    complement(double fristnum=0.,double secondnum=0.)
    {
        calculator(fristnum,secondnum);
    }
    double result()
    {
        return (int)data1()%(int)data2();
    }
};

calculator *judge(double fristnum,char sop,double secondnum)
{
    calculator *pcalc=NULL;
    if(sop=='+')
        pcalc=new add();
    else if(sop=='-')
        pcalc=new sub();
    else if(sop=='^')
        pcalc=new power();
    else if(sop=='%')  
        pcalc=new complement();
    else
        throw  std::runtime_error("不可识别的运算符！");
    pcalc->setdata1(fristnum);
    pcalc->setdata2(secondnum);
    return pcalc;
}

double calc(double fristnum,char sop,double secondnum)
{
    calculator *pcalc=NULL;
    pcalc=judge(fristnum,sop,secondnum);
    double fresult=pcalc->result();
    delete pcalc;
    return fresult;
}

void main()
{
    double fristnum;
    char sop;
    double secondnum;
//    int frist;
//    int second;
    cout<<"请输入表达式："<<endl;
    cin>>fristnum>>sop>>secondnum;
    cout<<"结果："<<calc(fristnum,sop,secondnum)<<endl;
}

[ 本帖最后由 nomify 于 2011-10-16 00:32 编辑 ]

第 8 楼

得分:0

回复 7楼 nomify

谢谢~给分了~