写在文本文件OpenCV visual studio中

Question

如何在OpenCV visual studio中将数组中的元素写入文本文件？

Answer 1

std::ofstream f("C:/file_to_write_to.txt");

// writing element my_matrix[10, 10] to file.  assuming it's a float.
f << my_matrix.at<float>(10, 10) << std::endl;
f.close();