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
+a = turtle.Pen()
+d=turtle.Screen()
+c=["red","blue","green","yellow"]
+d.bgcolor("black")
+for b in range(1,500):
+    a.pencolor(c[b%4])
+    a.forward(i)
+    a.right(100)
+a.hideturtle()
+a.done()
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