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diy1.py

-# 利用write()帮助悟空给诺依回信吧~
 import turtle
 import turtle
+#背景颜色
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+#写字
 pen=turtle.Pen()
 pen=turtle.Pen()
-pen.write("春眠不觉晓,\n处处闻啼鸟.\n",font=("Times",20,"normal"))
+pen.penup()
+pen.goto(100,-100)
+pen.write("Hi，诺依~\n用python写电子贺卡真是太有趣啦~\n我也喜欢python~\n——悟空 ",font=("Times",20,"normal"))
 pen.hideturtle()
 pen.hideturtle()
 #画爱心
 #画爱心
 pen1=turtle.Pen()
 pen1=turtle.Pen()
 pen1.pencolor("red")
 pen1.pencolor("red")
 pen1.pensize(5)
 pen1.pensize(5)
+#借助变量
+len=30
 pen1.left(45)
 pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
+pen1.forward(2*len)
+pen1.circle(len,180)
 pen1.right(90)
 pen1.right(90)
-pen1.circle(50,180)
-pen1.forward(100)
+pen1.circle(len, 180)
+pen1.forward(2*len)
 pen1.hideturtle()
 pen1.hideturtle()
 turtle.done()
 turtle.done()
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