auto save

my_tree.py

-import turtle
+import turtle,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()
-
+pen.speed(0)
+def t(n):
+    if n>=0:
+        if n<=12:
+            c=random.choice(['snow','lightcoral'])
+            pen.pencolor(c)
+            pen.pensize(n/3)
+        else:
+            pen.pencolor('sienna')
+        pen.pensize(n/10)
+        a=random.randint(0,30)
+        l=random.randint(1,15)
+        pen.forward(n)
+        pen.right(a)
+        t(n-l)
+        pen.left(a*2)
+        t(n-l)
+        pen.right(a)
+        pen.backward(n)
+t(60)
 turtle.done()