save project

diy1.py

+"""
+使用turtle模块画图
+每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
+"""
+import turtle
+screen=turtle.Screen()
+screen.bgcolor("black")
+a=["red","yellow","orange","green"]
+pen=turtle.Pen()
+pen.speed(100000000)
+for i in range(1,300):
+    pen.pencolor(a[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()