save project

my_tree.py

@@ -10,15 +10,17 @@ w.bgcolor('wheat')      # wheat小麦
 pen.left(90)
 pen.up()
 pen.backward(150)    # 后退
-pen.down()
-pen.forward(100)
-pen.right(30)
-pen.forward(50)
-pen.penup()
-pen.right(180)
-pen.forward(50)
-pen.right(120)
-pen.pendown()
-pen.forward(50)
-
+def t(n):
+    if n>=50:
+        pen.down()
+        pen.forward(100)
+        pen.right(30)
+        pen.forward(50)
+        pen.penup()
+        pen.right(180)
+        pen.forward(50)
+        pen.right(120)
+        pen.pendown()
+        pen.forward(50)
+t(100)
 turtle.done()