save project

my_tree.py

-import turtle
+import turtle as p
+import random
+p.speed(0)
+def tree(n):
+    if n>=0:
+        if n<=12:
+            color_l=['snow','lightcoral']
+            color=random.choice(color_l)
+            p.color(color)
+            p.pensize(n/3)
+        else:
+            p.pensize(n/10)
+            p.color('sienna')
+        jiao=random.randint(0,30)
+        cang=random.randint(1,15)
+        p.fd(n)
+        p.rt(jiao)
+        tree(n-cang)
+        p.lt(jiao*2)
+        tree(n-cang)
+        p.rt(jiao)
+        p.up()
+        p.bk(n)
+        p.down()
 
-pen = turtle.Turtle()
+
+
+pen = p
 pen.color('sienna')
 # 画布大小
-w = turtle.Screen()
+w = p
 w.bgcolor('wheat')      # wheat小麦
 
 # 移动到起点
@@ -12,4 +37,5 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
-turtle.done()
+tree(60)
+p.done()