save project

diy1.py

+
+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+pen.speed(100)
+yanse=["red","yellow","green","blue"]
+for i in range(1,300):
+    pen.pencolor(yanse[i%4])
+    pen.forward(i)
+    pen.left(100) 
+for i in range(1,300):
+    pen.pencolor(yanse[i%4])
+    pen.forward(300-i)
+    pen.left(100)
+pen.hideturtle()
+turtle.done()