save project

my_tree.py

@@ -7,7 +7,7 @@ w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 pen.speed(0)
 def bnm(n):
-    if n>=50:
+    if n>=0:
 
         pen.forward(n)
         pen.right(30)
@@ -25,5 +25,5 @@ pen.up()
 pen.backward(150)    # 后退
 pen.down()
 
-bnm(100)
+bnm(60)
 turtle.done()
\ No newline at end of file