save project

my_tree.py

 import turtle
-
 pen = turtle.Turtle()
 pen.color('sienna')
 # 画布大小
@@ -12,4 +11,19 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
-turtle.done()
+pen.foward(100)
+pen.right(30)
+pen.foward(50)
+pen.up()
+pen.backward(50)
+pen.down()
+pen.left(60)
+pen.foward(50)
+pen.up()
+pen.backward(50)
+pen.left(-60)
+pen.backward(100)
+
+
+
+turtle.done()
\ No newline at end of file