[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPe8R3AGm2JFYRqLM3FWlWxQU2XRxjGwJMUjO5Ax9Gik":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":25,"type":54},[],"2025-06-10 01:21:14",71282306,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},12,"ac0cbd0ba490cf0143308aa1354baff8","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe9991a719ad2f4542e90113b0592f0b1.jpg","面向对象程序设计","de648fb31a834113853547f052fbbaf6","4.3 测试","判断以下程序第()行代码有误.第21行输出的值为().第23行输出的值为().第24行输出的值为().第25行输出的值为().1.#include <iostream>2.using namespace std;3.class test4.{5. private:6. int x;7. int y;8. public:9. static int num;10. static int Getnum()11. {12. x+=4;13. num+=15;14. return num;15. }16.};17. int test::num=10;18. int main(void)19. {20. test a;21. cout<<test::num<<endl; 22. test::num=20;23. cout<<test::num<<endl; 24. cout<<test::Getnum()<<endl; 25. cout<<a.Getnum()<<endl; 26. system("pause");27. return 0;28.}",[17,27,37,46,51,55,64,69,74,79],{"answer":18,"createTime":19,"id":20,"options":21,"question":24,"source":25,"type":26},[],"2023-05-26 20:15:34",31011940,[22,23],"能","不能","类的静态成员函数是否能访问类中的非静态成员","v1",0,{"answer":28,"createTime":19,"id":29,"options":30,"question":35,"source":25,"type":36},[],31011941,[31,32,33,34],"对象名::成员名","类名::成员名","对象名.成员名","类名.成员名","静态数据成员的访问方式有两种,分别是()",1,{"answer":38,"createTime":19,"id":39,"options":40,"question":45,"source":25,"type":36},[],31011942,[41,42,43,44],"静态数据成员","静态成员函数","非静态数据成员","非静态成员函数","静态成员函数可以直接访问()",{"answer":47,"createTime":19,"id":48,"options":49,"question":50,"source":25,"type":36},[],31011943,[41,42,43,44],"非静态成员函数可以访问()",{"answer":52,"createTime":5,"id":6,"options":53,"question":15,"source":25,"type":54},[],[],2,{"answer":56,"createTime":57,"id":58,"options":59,"question":62,"source":25,"type":63},[],"2023-06-19 11:31:40",71282307,[60,61],"正确","错误","类的静态成员用于解决同一个类中不同对象之间数据和函数的共享问题",3,{"answer":65,"createTime":57,"id":66,"options":67,"question":68,"source":25,"type":63},[],71282308,[60,61],"类的静态成员只能是类的数据成员,不能是类的成员函数",{"answer":70,"createTime":57,"id":71,"options":72,"question":73,"source":25,"type":63},[],71282309,[60,61],"类的静态数据成员可以在类体内进行初始化",{"answer":75,"createTime":57,"id":76,"options":77,"question":78,"source":25,"type":63},[],71282310,[60,61],"构造函数应当为静态数据成员进行初始化",{"answer":80,"createTime":57,"id":81,"options":82,"question":83,"source":25,"type":63},[],71282311,[60,61],"静态成员仍然遵循public、private和protected访问准则"]