定义一个矩形类,用成员函数计算面积
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![定义一个矩形类,用成员函数计算面积](/uploads/image/f/3871890-18-0.jpg?t=%E5%AE%9A%E4%B9%89%E4%B8%80%E4%B8%AA%E7%9F%A9%E5%BD%A2%E7%B1%BB%2C%E7%94%A8%E6%88%90%E5%91%98%E5%87%BD%E6%95%B0%E8%AE%A1%E7%AE%97%E9%9D%A2%E7%A7%AF)
#include#includeclassPoint{private:\x05doublem_x;\x05doublem_y;\x05public:\x05Point()\x05{\x05\x05m_
对的,可以这样定义
Date();Date(Date&d);Date(constchar*input);Date(inty,intm=2,intd=29);voidsetDate(constchar*input);voi
classCircle{public:Circle(intnr){r=nr;}Circle(){}public:intr;intArea(){return3.14*r*r;}};classB{publ
easy~#include#includeusingnamespacestd;classComplex{private:doublereal;doubleimage;public:Complex(do
#includeusingnamespacestd;classcircle{private:doubleradius;public:circle(doubler=0.0);voidinput();do
Java的行不,C++的不记得了.publicclassCircle{privatestaticdoublePI=3.14privatedoubleradius;publicCircle(double
#includeclassCircle{public:Circle():radius(0){}Circle(doubler):radius(r){}constdoublearea()co
以下程序,直接拿去交作业吧,都测试过了.//圆周长面积#include#definepi3.14159classcircle{public:voidsetRadius(){std::cout
classTriangle{private:\x05doublea;\x05doubleb;\x05doublec;public:\x05Triangle():a(0),b(0),c(0){}\x05
#include#definePI3.14159classCircle{private:floatradius,girth,area;public:Circle(floatr=0);//构造函数(以半
#include#includeusingnamespacestd;classPoint{private:doubleX,Y;public:Point(doublex,doubley){X=x;Y=y
classComplex{public:Complex(){real=0;imag=0;}//定义结构函数Complex(doubler,doublei){real=r;imag=i;}//构造函数重
C++实现的复数类,代码如下//complex.cpp#includeusingnamespacestd;classcomplex{//复数类public:complex(doubler=0.0,do
classCat{privateintnumofcats;publicintgetnumofcats(){returnnumofcats;}}
classDate{intyear;intmonth;intdate;publicDate(intyear,intmonth,intdate){this.month=month;this.year=y
publicclassRectangle{\x09\x09privateintw;\x09\x09privateinth;\x09\x09publicRectangle(){\x09\x09}\x09
classCRect{public:CRect(intx,inty,intWidth,intHeight);voidSetSize(intWidth,intHeight);voidSetPos(int
classcs{publicint_w;publicint_h;puliccs(intw,inth){_w=w;_h=h;}publicintmj(){return_w*_h;}publicintzc
1)Youdon'tneedamemberfunction2)Youdon'tevenneedamembervariable3)Aclasscanbeempty再问:ok,Iunderstand,th