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diy1

 # 利用write()帮助悟空给诺依回信吧~
 import turtle
 screen=turtle.Screen()
+len=screentextinput("提示","你想要多大的尺寸啊?")
+lovesize=int(len)
 screen.bgcolor("blue")
 pen=turtle.Pen()
 pen.penup()
@@ -11,11 +13,11 @@ pen1=turtle.Pen()
 pen1.pensize(5)
 pen1.pencolor("red")
 pen1.left(45)
-len=60
-pen1.forward(len*2)
-pen1.circle(len,180)
+
+pen1.forward(lovesize*2)
+pen1.circle(lovesize,180)
 pen1.right(90)
-pen1.circle(len,180)
-pen1.forward(len*2)
+pen1.circle(lovesize,180)
+pen1.forward(lovesize*2)
 pen.hideturtle()
 turtle.done()
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