[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fM_VbtRzmoUZVjzefurC0U9X9IUNbSrrLpiMXrawXrQ8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-12-17 23:18:35",115017065,[8,9,10,11],"operator==(const R& s)","operator=(const R& s)","R operator=(const R& s)","R operator==(const R& s)",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},9,"8336f75d6d4cb0ae106461502e8ea0e0","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8d8e99875725bed83e7cb68c2de07f03.jpg","C++语言程序设计","e7dc66494ba849588f9d0a6ac4bc16cc","","What is the correct signature for the = operator function in class R",[21,32,41,50,53,62,71,80,89],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],115017059,[25,26,27,28],"R R::operator+(const R &r)","R R::operator+( )","R R::operator<+>(const R &r)","R R::operator(+)(const R &r)","What is the correct signature for the overloaded unary operator + in class R","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],115017061,[36,37,38,39],"(1, -2)","(2, 3)","(3, 5)","(3, 1)","执行如下程序后的输出结果是______.#include <iostream>using namespace std;class complex {private: double re, im;public: complex (double r, double i) : re(r), im(i) { } double real ( ) const { return re; } double image ( ) const { return im; } complex &operator += (complex a) { re += a.re; im += a.im; return *this; }};void disp(const complex &z) { cout << "(" << z.real( ) << ", " << z.image( ) << ")";}\u002F\u002F ostream& operator<<(ostream &s, const complex &z) {\u002F\u002F return s << "(" << z.real( ) << ", " << z.image( ) << ")";\u002F\u002F }int main ( ) { complex x(1, -2), y(2, 3); disp(x+=y); \u002F\u002F cout << (x+=y); return 0;}",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],115017063,[45,46,47,48],"x = 7","x = 8","x = 3","x = 4","以下程序运行的结果为( ).#include <iostream>using namespace std;template <class T>class Num {private: T x;public: Num( ) { } Num(T x) { this->x = x; } Num<T>& operator + (const Num<T>& x2) { static Num<T> temp; temp.x = x + x2.x; return temp; } void disp( ) { cout << "x = " << x; }};void main ( ) { Num<int> A(3.8), B(4.8); A = A + B; A.disp( );}",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],115017066,[57,58,59,60],"5.0+2.0和5.0+2","5.0+2.0和5+2.0","5.0+2.0和5+2","5+2.0和5.0+2","在下列成对的表达式中,运算符"+"的意义不相同的一对是______",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],115017067,[66,67,68,69],"这是运算符-的重载运算符函数","这个函数所重载的运算符一定是一个一元运算符","这是一个成员函数","这个函数不改变类的任何数据成员的值","已知一个类包含如下函数原型:VOLUME operator - (VOLUME)const; ,下列关于这个函数的叙述错误的是______",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],115017068,[75,76,77,78],"R operator++(R &r)","R operator++( )","R operator++(int dummy)","R operator++(int &dummy)","What is the correct signature for the overloaded postfix ++ operator in class R",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],115017069,[84,85,86,87],"long R::operator[ ](const int index)","long &operator[ ](const int index)","&long operator[ ](const int index)","long operator&[ ](const int index)","What is the correct signature for the overloaded subscript operator [ ] in class R",{"answer":90,"createTime":91,"id":92,"options":93,"question":40,"source":30,"type":31},[],"2024-06-17 02:11:18",152241283,[18,18,18,18]]