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diy1.py

 # 利用write()帮助悟空给诺依回信吧~
 import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
 pen=turtle.Pen()
+pen.penup()
+pen.goto(100,-100)
 pen.write("Hi,诺依\n我会用python写字了",font=("Times",18,"normal"))
 pen.hideturtle()
+lovesize=screen.textinput("提示","你要多大的爱心？")
+len=int(lovesize)
+pen1=turtle.Pen()
+pen1.pensize(5)#画笔粗细
+pen1.pencolor("red")#画笔颜色
+pen1.left(45)#设置方向（45度）
+pen1.forward(len*2)#画直线
+pen1.circle(len,180)#画半圆
+pen1.right(90)#转方向（90度）
+pen1.circle(len,180)#画半圆
+pen1.forward(len*2)#画直线
 turtle.done()
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