在C++中将所有程序输出写入txt文件

#include<iostream>
#include <fstream>

int main() {
    std::ofstream outfile("output.txt");
    std::streambuf *coutbuf = std::cout.rdbuf(); // 保存原始输出流
    std::cout.rdbuf(outfile.rdbuf()); // 将输出流重定向到文件

    std::cout << "This text will be written to output.txt"<< std::endl;

    std::cout.rdbuf(coutbuf); // 恢复原始输出流
    outfile.close();

    return 0;
}