repeat 4 fd 50 rt 90 Repeat 4

repeat 4 [ fd 50 rt 90] Repeat 4[ repeat 4 [ fd 50 rt 90]

repeat zfx 4 [ fd 50 rt 90] repeat 4[ repeat zfx 4 [ fd 50 rt 90]

repeat zfx 4 [ fd 50 rt 90] zfx repeat 4[ repeat 4 [ fd 50 rt 90]

repeat [ ZFX rt ]

定义一个画圆的过程 to yuan repeat 36[fd 10 rt 360/36] end repeat [ yuan rt ]

repeat 4 [ repeat yuan 36 [fd 10 rt 360/36] rt 360/4 ] yuan 36 [fd 10 rt 360/36] rt 360/10 ] repeat 10 [ repeat 定义过程的作用： 画圆过程定义: 化繁为简，高效精炼。 Repeat 36[fd 10 rt 360/36] To yuan End