发布时间:2019-08-01 12:58:18
为plex类添加适当的构造类函数,并使用友元函数add实现复数加法
很基础的类定义(若是C++的)
class plex{ public: friend plex add(plex &x,plex &y);
plex() { real = 0.0; imag = 0.0; } plex(float x, float y) { real = x; imag = y; }
private: float real; float imag;};plex add(plex &x,plex &y){ return plex( x.real+y.real,x.imag+y.imag);}