笔试面试 下面 C++ 代码的运行结果是() #include <iostream> using std::cout; using std::endl; using std::move; struct Test { Test() = default; Test(const Test& that) { cout << "copy constructor" << endl; } Test& operator=(const Test& rhs) { cout << "copy assignment operator" << endl; return *this; } }; int main() { Test a, b; a = b; Test c = move(b); return 0; }