save project

MC.PY

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
-pen.write("MC，必定胜利.)
+pen.write("MC，必定胜利.",font=("Times",30,"normal"))
 pen.hideturtle()
 pen.hideturtle()
-turtle
+turtle.done()
\ No newline at end of file

a.py

+import turtle
+screen=turtle.Screen()
+screen.bgcolor("light blue")
+len=screen.textinput("100","100")
+len=int(len)
+pen=turtle.Pen()
+pen.write("诺伊,turtle真好用，\n我会在画布上写字了！",font=("Times",30,"normal"))
+pen.hideturtle()
+pen.penup()
+pen.goto(100,100)
+pen.pendown()
+pen.pensize(5)
+pen.pencolor("red")
+pen.left(45)
+pen.forward(2*len)
+pen.circle(len,180)
+pen.right(90)
+pen.circle(len,180)
+pen.forward(2*len)
+turtle.done()