Array ( [0] => Array ( [title] => L9A [link] => https://www.youtube.com/embed/XTqRUwA4hLA ) [1] => Array ( [title] => L9B [link] => https://www.youtube.com/embed/7kHszAg0nEM ) [2] => Array ( [title] => L9C [link] => https://www.youtube.com/embed/8iNv_ujFGsk ) [3] => Array ( [title] => L9D [link] => https://www.youtube.com/embed/QLkCzz1ZQbE ) ) 國立清華大學開放式課程OpenCourseWare(NTHU, OCW) - 第9R講 C++ 自訂有理數