auto save

my_tree.py

 import turtle
+import random
 
-pen = turtle.Turtle()
-pen.color('sienna')
+def tree(n):
+    if n >=0:
+        if n <=12:
+            color_list = ["snow","lightcoral"]
+            color = random.choice(color_list)
+            p.color(color)
+            p.pensize(n/3)
+        else:   
+            p.color("sienna")
+            p.pensize(n/10)
+        p.pensize(n/10)
+        p.forward(n)
+        angle = random.randint(0,30)
+        length = random.randint(1,15)
+        p.right(angle)
+        tree(n-length)
+        p.left(2*angle)
+        tree(n-length)
+        p.right(angle)
+        p.up()
+        p.backward(n)
+        p.down()
+p = turtle.Turtle()
+p.speed(0)
+p.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()
+p.left(90)
+p.up()
+p.backward(150)    # 后退
+p.down()
+
+tree(60)
+
+    
+
+
+
+
+
+
+
+
 
 turtle.done()