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my_tree.py

-import turtle
-import random
-
-def tree(n):
-    if n>=0:
-        pen.forward(n)
-        pen.right(30)
-        tree(n-10)
-        pen.left(60)
-        tree(n-10)
-        pen.right(30)
-        pen.up()
-        pen.backward(n)
-        pen.down()
-
-pen=turtle.Turtle()
-pen.color('sienna')
-
-w=turtle.Screen()
-w.bgcolor('wheat') 
-
-pen.left(90)
-pen.up()
-pen.backward(150)    # 后退
-pen.down()
-
-tree(60)
-turtle.done()
-
-pen = turtle.Turtle()
-pen.color('sienna')
+#import turtle
+#import random
+
+#def tree(n):
+#    if n>=0:
+#        pen.forward(n)
+#        pen.right(30)
+#        tree(n-10)
+#        pen.left(60)
+#        tree(n-10)
+#        pen.right(30)
+#        pen.up()
+#        pen.backward(n)
+#        pen.down()
+
+#pen=turtle.Turtle()
+#pen.color('sienna')
+
+#w=turtle.Screen()
+#w.bgcolor('wheat') 
+
+#pen.left(90)
+#pen.up()
+#pen.backward(150)    #后退
+#pen.down()
+
+#tree(60)
+#turtle.done()
+
+#pen = turtle.Turtle()
+#pen.color('sienna')
 # 画布大小
 # 画布大小
-w = turtle.Screen()
-w.bgcolor('wheat')      # wheat小麦
+#w = turtle.Screen()
+#w.bgcolor('wheat')      # wheat小麦
 
 
 # 移动到起点
 # 移动到起点
-# pen.left(90)
-# pen.up()
-# pen.backward(150)    # 后退
-# pen.down()
+#pen.left(90)
+#pen.up()
+#pen.backward(150)    # 后退
\ No newline at end of file
-
-# turtle.done()