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a5a75bff · BellCodeEditor · ed221421 · a5a75bff
Commit a5a75bff authored Dec 02, 2023 by BellCodeEditor
Showing with 12 additions and 9 deletions
my_tree.py
--- a/my_tree.py
+++ b/my_tree.py
@@ -12,13 +12,16 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
-pen.forward(100)
+def tree(n):
-pen.right(30)
+    if n>=50:
-pen.forward(50)
+        pen.forward(n)
-pen.backward(50)
+        pen.right(30)
-pen.left(60)
+        tree(n-50)
-pen.forward(50)
+        pen.left(60)
-pen.backward(50)
+        tree(n-50)
-pen.right(30)
+        pen.right(30)
-pen.backward(100)
+        pen.up()
+        pen.backward(n)
+        pen.down()
+tree(100)
 turtle.done()