save project

my_tree.py

+import turtle
+
+pen = turtle.Turtle()
+pen.color('sienna')
+# 画布大小
+w = turtle.Screen()
+w.bgcolor('wheat')      # wheat小麦
+pen.speed(1000000)
+def my_pen(n):
+    if n >= 50:
+        pen.down()
+        pen.forward(n) 
+        pen.right(30)
+        my_pen(n-0.1)  
+        pen.left(60)
+        my_pen(n-0.1)
+        pen.right(30) 
+        pen.up()
+        pen.backward(n)
+# 移动到起点
+pen.left(90)
+pen.up()
+pen.backward(100)
+pen.down()
+my_pen(100)
+'''
+pen.right(30)
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.left(60)
+pen.down()
+pen.forward(50)
+pen.up()
+pen.backward(50)
+pen.right(30)
+pen.backward(100)
+'''
+turtle.done()
+print("WSSB")