auto save

aa.py

+#导入
+import turtle
+#创建画笔
+pen = turtle.Pen()
+#创建屏幕
+s = turtle.Screen()
+s.bgcolor("black")
+pen.speed(1000)
+#新建变量
+c = ["red","green","yellow","pink"]
+for i in range(1,300):
+    pen.pencolor(c[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
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