有如下类声明： class Wd{ int a; public: int b; int c; private: int d; protected: int e; };其中访问权限为私有的成员变量有

单项选择题下面不属于软件需求分析阶段主要工作的是

单项选择题有如下程序：#include#includeusing namespace std;class Wheel{public:Wheel(string s= W ):name(s) { cout<<name; }private:string name;};class Bicycle{public:Bicycle(string br= G ,string r= R ):brand(br),rear(r) { cout<<brand; }private:Wheel front,rear;string brand;};int main(){Bicycle bike;return 0;}运行时的输出结果是