save project

my_tree.py

@@ -3,7 +3,7 @@ import random
 
 
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
-pen.screen()
+pen.speed(0)
 # 画布大小
 # 画布大小
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 w.bgcolor('wheat')      # wheat小麦
@@ -17,7 +17,7 @@ pen.down()
 def tree(n):
 def tree(n):
     if n >= 0:
     if n >= 0:
         if n<=12:
         if n<=12:
-            color_list = ['snow','lightcola']
+            color_list = ['snow','lightcoral']
             color=random.choice(color_list)
             color=random.choice(color_list)
             pen.color(color)
             pen.color(color)
             pen.pensize(n/3)
             pen.pensize(n/3)
@@ -25,13 +25,13 @@ def tree(n):
             pen.color('sienna')
             pen.color('sienna')
             pen.pensize(n/10)
             pen.pensize(n/10)
         pen.forward(n)
         pen.forward(n)
-        angle = random.randint()
+        angle = random.random()
         pen.right(30*angle)
         pen.right(30*angle)
-        length = 1.5*random.randint()
-        tree(n-10*angle)
-        pen.left(length)
+        length = 1.5*random.random()
         tree(n-10*length)
         tree(n-10*length)
-        pen.right(angle)
+        pen.left(60*angle)
+        tree(n-10*length)
+        pen.right(30*angle)
         pen.up()
         pen.up()
         pen.backward(n)
         pen.backward(n)
         pen.down()
         pen.down()