面向对象程序设计avc minshh c编程题潜在的考题

1、1class shvirtual float class triangle:publicfloath,w; triangle(float float return class rectangle:public1class shvirtual float class triangle:publicfloath,w; triangle(float float return class rectangle:publicrectangle(floath,floatw):triangle(h,w) float area()return class circle:public floatradius; c

2、ircle(float float returnfloat * n)float return sum;void floatsum=total(s,4); 程序的运行结果为#include #include class CTrianglex = y = z = =#include #include class CTrianglex = y = z = =float float returnsqrt(p*(p-a)*(p-b)*(p-floatGetCircumference() return (a+b+c);void CTriangle coutCTriangle#include class c

3、ountersreturncount;void test()counter void counter counter a1,a2,a3; /输出：25 6 3String（25）Stringclass String(constchar*str=NULL); String(const String &other); String & =(const3String（25）Stringclass String(constchar*str=NULL); String(const String &other); String & =(constStringdeletem_data;/m_dataStri

4、ngString:String(constchar*str) ：deletem_data = new *m_data=0; length = m_data = new strcpy(m_data, NULLString:String(const String &other) length=strlen(other.m_data);m_data = new strcpy(m_data, NULLString & if(this=&other) return *this;delete =(const String / 13(1)4/ 3length=strlen(other.m_data); m_

5、data = new charlength+1;strcpy(m_data, NULLreturn （4）/ 3会看4】虚基类的使用class basecoutthis base 会看4】虚基类的使用class basecoutthis base classbase2 coutthis classlevel1:public coutthis class coutthis base2base2,virtualpubliclevel1base2,virtualpubliclevel2class toplevel:publiclevel1,virtual publiccoutthisistoplevel void main() to