save project

my_tree.py

@@ -32,7 +32,7 @@ w.bgcolor('wheat')      # wheat小麦
 # 移动到起点
 # 移动到起点
 pen.left(90)
 pen.left(90)
 pen.up()
 pen.up()
-pen.backward(n)    # 后退
+pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
 
 
@@ -41,7 +41,3 @@ turtle.done()
 
 
 
 
 
 
-
-angle=random.randint(0,30)
-        lenht=random
-        pen.left(2*angle)
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