2026年3月 GESP C++ 4级单选题第13题｜真题与答案解析

下面哪种方式不能实现将字符串 Welcome to 2026! 输出重定向到文件 log.txt（）。

cpp freopen("log.txt", "w", stdout); cout << "Welcome to 2026!" << endl; fclose(stdout);

cpp std::ofstream outFile("log.txt"); cout << "Welcome to 2026!" << endl; outFile.close();

cpp ofstream log_file("log.txt"); streambuf* org_cout = cout.rdbuf(); cout.rdbuf(log_file.rdbuf()); cout << "Welcome to 2026!" << endl; cout.rdbuf(org_cout);

cpp std::ofstream outFile("log.txt"); outFile << "Welcome to 2026!" << endl; outFile.close();