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diy1.py

-# 利用write()帮助悟空给诺依回信吧~
 import turtle
 import turtle
-# pen=turtle.Pen()
-# pen.write("你在干什么,\n诺伊,\n你叫什么?",font=("Times",20,"normal"))
-# pen.hideturtle()
-# turtle.done()
-pen1=turtle.Pen()
-pen1.pensize(5)
-pen1.pencolor("red")
-pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
-pen1.right(90)
-pen1.circle(50,180)
-pen1.forward(100)
-pen1.hideturtle()
+
+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)
+pen.down()
+tree(50)
+
 turtle.done()
 turtle.done()
 
 
 
 
 
 
+