摘要：
1. Write a function called square that takes a parameter named t, which is a turtle. It should use the turtle to draw a square.from TurtleWorld import... 阅读全文
摘要：
TurtleWorld provides a set of functions for drawing lines by steering turtles around the screen. You can download Swampy from allendowney.com/swampy.U... 阅读全文