Basic introduction to the turtle library
Drawing form layout
space coordinate system
Angular coordinate system
color system
brush state function
brush movement function
brush direction function
Drawing combat
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references
(1) "Python Programming and Algorithms Basic Course (Second Edition) Micro-Lecture Edition", Tsinghua University Press
(2) "Python Language Programming Fundamentals (Second Edition)", Higher Education Press, Song Tian, Li Xin, Huang Tianyu