救命啊~谁帮我看看这段代码

[XiaoG602]

#include <iostream>
#include <cmath>
using namespace std;
const float pi=3.14;
class circle
{
protected:
float radii;
public:
circle(float r=1):radii(r){}
}

class line
{
protected:
float high;
public:
line(float h=0):high(h){}
void set_high();
}

void line::set_high()
{
cout<<"Please cin the high of the taper:";
cin>>high;
}

class taper:public circle,public line
{
public:
taper(float r=1,float h=0,float g=0):circle(r),line(h),generatrix(g){}
float taper_area();
float taper_volume();
void calculate_generatrix(){generatrix=sqrt(radii*radii+high*high);}
private:
float generatrix;
}

float taper::taper_area()
{
float area;
area=pi*radii*(generatrix+radii);
return area;
}

float taper::taper_volume()
{
float volume;
volume=1/3*pi*radii*radii*high;
return volume;
}

int main()
{
taper taper1;
taper1.set_high();
taper1.calculate_generatrix();
cout<<"The area is:"<<taper1.taper_area();
cout<<"The volume is:"<<taper1.taper_volume();
return 0;
}

[hoohag]

// TempTest.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "wtypes.h"
#include <assert.h>

#include <iostream>
#include <cmath>
using namespace std;
const float pi=3.14;

class circle
{
protected:
float radii;
public:
circle(float r=1):radii(r){}
};

class line
{
protected:
float high;
public:
line(float h=0):high(h){}
void set_high();
};

void line::set_high()
{
cout <<"Please cin the high of the taper:";
cin>>high;
}

class taper:public circle,public line
{
public:
taper(float r=1,float h=0,float g=0):circle(r),line(h),generatrix(g){}
float taper_area();
float taper_volume();
void calculate_generatrix(){generatrix=sqrt(radii*radii+high*high);}
private:
float generatrix;
};

float taper::taper_area()
{
float area;
area=pi*radii*(generatrix+radii);
return area;
}

float taper::taper_volume()
{
float volume;
volume=1/3*pi*radii*radii*high;
return volume;
}

int main()
{
taper taper1;
taper1.set_high();
taper1.calculate_generatrix();
cout <<"The area is:" <<taper1.taper_area();
cout <<"The volume is:" <<taper1.taper_volume();
return 0;
}


类声明结束应该加 ";" 分号. << 中间不要有空格

[bargio_susie]

#include  <iostream>
#include  <cmath>
using namespace std;

const float pi=3.14f;

class circle
{
protected:
	float radii;
public:
	circle(float r=1):radii(r){}
};

class line
{
protected:
	float high;
public:
	line(float h=0):high(h){}
	void set_high();
};

void line::set_high()
{
	cout <<"Please cin the high of the taper:";
	cin>>high;
}

class taper:public circle,public line
{
public:
	taper(float r=1,float h=0,float g=0):circle(r),line(h),generatrix(g){}
	float taper_area();
	float taper_volume();
	void calculate_generatrix(){generatrix=sqrt(radii*radii+high*high);}
private:
	float generatrix;
};

float taper::taper_area()
{
	float area;
	area=pi*radii*(generatrix+radii);
	return area;
}

float taper::taper_volume()
{
	float volume;
	volume=1/3*pi*radii*radii*high;
	return volume;
}

int main()
{
	taper taper1;
	taper1.set_high();
	taper1.calculate_generatrix();
	cout <<"The area is:" <<taper1.taper_area();
	cout <<"The volume is:" <<taper1.taper_volume();
	return 0;
}

[ttkk_2007]

circle,line,taper类后面要有分号

[XiaoG602]

谢谢了~今天不知犯了什么迷糊，犯了个那么低级的错误，见笑了！