save project

my_tree.py

@@ -3,6 +3,7 @@ import random
 
 pen = turtle.Turtle()
 pen.color('sienna')
+pen.speed(1000000)
 # 画布大小
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
@@ -12,11 +13,18 @@ pen.left(90)
 pen.up()
 pen.backward(150)    # 后退
 pen.down()
-
+list=['snow','light coral']
 def tree(n):
-    if n>=20:
-        angle=random.randint(10,30)
-        length=random.randint(10,15)
+    if n>=0:
+        if n<=12:
+            pen.pensize(n/3)
+            pen.pencolor(random.choice(list))
+        else:
+            pen.pensize(n/10)
+            pen.pencolor('sienna')
+        pen.pensize(n/10)
+        angle=random.randint(1,30)
+        length=random.randint(1,15)
         pen.forward(n)
         pen.right(angle)
         tree(n-length)