save project

my_tree.py

 import turtle
 import turtle
-import random
 
 
-pen = turtle.Turtle()
-pen.color('sienna')
-# 画布大小
-w = turtle.Screen()
-w.bgcolor('wheat')      # wheat小麦
-
-# 移动到起点
-pen.left(90)
-pen.up()
-pen.backward(150)    # 后退
-pen.down()
-
-def tree(n):
-    if n >=0:
-        if n <= 12
-            color_list = ['snow','lightcoral']
-            color = random.choice(color_list)
-            pen.color(color)
-            pen.pensize(n/3)
-        else:
-            pen.color('sienna')
-            pen.pensize(n/10)
-        pen.forward(n)
-        angle = random.randint()
-        pen.right(30*angle)
-        length = 1.5*random.random()
-        tree(n-10*length)
-        pen.left(60*angle)
-        tree(n-10*length)
-        pen.right(30*angle)
-        pen.up()
-        pen.backward(n)
-        pen.down()
-
-tree(60)
-turtle.done
+pen=turtle.pen()
+colors=["red","orange","yellow","green"]
+for i in range(1,300)
+    pen.forward(distance)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()