一、隐形字迹是传递机密信息的特殊方式在《陆定一传》第51页,有这样的记述“这些信件稿,有的是明写的,有的是密写的,密写的方法常常是把一本线装的旧小说拆开,用五倍字写在背面,收到后用碘酒一抹,字迹就显示出来了。”在《我的父亲邓小平》第172页这样写的:“从 First, the invisible handwriting is a special way to pass the confidential information In the “Luding Biography” on page 51, there is such a statement “These letters, some are written, and some are densely written, the secret of the method is often a The old fictional novel was disassembled, written on the back with five times the size of the letter, and the handwriting was revealed after it was received. ”On page 172 of“ My Father, Deng Xiaoping, ”wrote:" From