什么是线 ?科学解释是 ,线作为面与面的交界或物象边缘的绘画线条 ,是空间存在的一种形式 ;线作为物象特征的连接过程 ,又是点的运动在时间中留下的轨迹。也许是用线条摹拟物象是最简明最明了而又是最易行的 ,所以人类起初都不约而同地选择用线条来记录他们的活动 ,如狩猎、歌 What is a line? Scientific explanation is that the line as the boundary between the surface and the surface or the edge of the image is a form of space exists; the connection process of the line as the image feature is the locus left by the movement of the point in time . Maybe it’s the simplest, the clearest and the easiest to imitate, with lines, so humans at first chose to use lines to record their activities, such as hunting, singing