�提到的，你可以前去围观一下。</p>
<h4 id="sketchpad">SketchPad</h4>
<p>Maybe the first. 1963.</p>
<p><a href="https://mydiesel22.blogspot.com/2011/05/vector-and-digital-graphics.html">图片来源</a>, <a href="https://en.wikipedia.org/wiki/Sketchpad">Wikipedia</a> 和 <a href="https://www.youtube.com/watch?v=495nCzxM9PI&amp;feature=player_embedded">官方网站</a></p>
<p style="text-align: center;"><img decoding="async" loading="lazy" class="aligncenter" alt src="http://blog.interfacevision.