第20423题 单选
下列哪种方式不能实现将字符串"Happy Spring!"输出重定向到log.txt文件
A
freopen("log.txt", "w", stdout);
cout << "Happy Spring!" << endl;
fclose(stdout);
B
std::ofstream outFile("log.txt");
outFile << "Happy Spring!" << endl;
outFile.close();
C
std::ofstream outFile("log.txt");
cout << "Happy Spring!" << endl;
outFile.close();
D
ofstream log_file("log.txt");
streambuf* org_cout = cout.rdbuf();
cout.rdbuf(log_file.rdbuf());
cout << "Happy Spring!" << endl;
cout.rdbuf(org_cout);
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