数字笔与数字作业本最近,美国的一些企业为学生开发了数字作业本,不但大大减轻了书包的重量,而且让书写变得更加方便。所谓数字作业本,实际上就是一张可以用数字笔在上面书写的数字纸。数字笔带有一个微型照相机,可拍下你书写的内容。在使用者书写的数字纸上,印有类似于地图坐 Recently, some companies in the United States developed a digital homework for students, which not only greatly reduces the weight of school bags, but also makes writing more convenient. The so-called digital homework, in fact, is a piece of digital paper that can be written on a digital pen. The digital pen comes with a miniature camera that captures what you write. On the digital paper written by the user, a map similar to a map is printed