有如下程序： #include using namespace std; class TV{ public: TV(int s=41):size(s) { } TV(const TV &r):size(r.size) { } ~TV() { } private: int size; }; TV fun(TV &u) { TV t=u; return t; } int main() { TV x,y; x=fun(y); return 0; }则 TV 类的复制构造函数被调用的次数是 A: 1次 B: 2次 C: 3次 D: 4次

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2022-06-12

有如下程序： #include using namespace std; class TV{ public: TV(int s=41):size(s) { } TV(const TV &r):size(r.size) { } ~TV() { } private: int size; }; TV fun(TV &u) { TV t=u; return t; } int main() { TV x,y; x=fun(y); return 0; }则 TV 类的复制构造函数被调用的次数是 A: 1次 B: 2次 C: 3次 D: 4次

有如下程序： #include using namespace std; class TV{ public: TV(int s=41):size(s) { } TV(const TV &r):size(r.size) { } ~TV() { } private: int size; }; TV fun(TV &u) { TV t=u; return t; } int main() { TV x,y; x=fun(y); return 0; }则 TV 类的复制构造函数被调用的次数是
A: 1次
B: 2次
C: 3次
D: 4次

答案：

B

举一反三

内容

0
The passage is mainly concerned with ______. A: research on TV influence B: sex and violence on TV C: parents' protest against sex and violence on TV D: control of TV influence on children
1
The TV play is really wonderful. (改为感叹句)________ __________ the TV play is!
2
和TV产品根据（）不同，包括和TV、和TV（IPTV）两类 A: 资源 B: 产品类型 C: 资费
3
When did the boy go to bed A: After the TV play was over. B: Berore the TV play was over. C: Before the TV news was over.
4
Interview Two Why was Steve given his own TV series（） A: He cooked for a TV company. B: He caught the attention of a TV producer while cooking. C: He had been recommended to a TV producer.