有下列程序，在横线添加； #include＜iostream＞ using namespace std; class TestClass { public: TestClass(int n){number=n;} ______//拷贝构造函数 ～TestClass(){} private: int number; }; TestClass fun(TestClass p) { TestClass temp(P); return temp; } int main() { TestClsss obj1(10),obj2(0); TestClass obj3(obj1); obj2=fun(obj3); return 0; }
A．TestClass(TestClass &othe{number=othenumber;}
B．TestClass(TestClass othe{number=othenumber;}
C．TestClass(TestClass &othe{number;}
D．TestClass(&othe{number=othenumber;}
