save project

1.py/1.py

+import turtle
+screen=turtle.Screen()
+len=screen.textinput("大小","请输入大小:")
+len=int(len)
+pen=turtle.Pen()
+pen.pencolor("red")
+pen.fillcolor("red")
+pen.begin_fill()
+pen.left(45)
+pen.forward(2*len)
+pen.circle(len,180)
+pen.rig
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