//第一题：#includevoidfun(char*a[],char*b[]){intl;/*获取较短数组的长度*/if(strlen(*a)usingnamespacestd;classCircle{public:voidinput(double);//输入voidprint();//输出doublegetArea();//计算半径private:doubler;//半径};voidCircle::input(doublea){r=a;}doubleCircle::getArea(){returnr*r*3.14159;}voidCircle::print(){cout>a;c.input(a);c.print();return0;}
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