save project

my_tree.py

@@ -12,8 +12,9 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
-pen.forward()
+pen.forward(100)
 pen.right(30)
 pen.right(30)
+pen.forward(50)
 pen.up()
 pen.up()
 pen.backward(50)
 pen.backward(50)
 pen.down()
 pen.down()
@@ -30,31 +31,4 @@ pen.down()
 
 
 
 
 
 
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 turtle.done()
 turtle.done()