save project

ghx.py

 import turtle
 pen=turtle.Pen()
+#背景
+screen=turtle.Screen()
+screen.bgcolor("blue")
 #画笔颜色
 pen.pensize(5)
 pen.pencolor('red')
@@ -16,6 +19,4 @@ pen.goto(200,-140)
 pen.write('芝士\n就是力量。',font=('楷体',30,'normal'))
 
 pen.hideturtle()#隐藏画笔
-turtle.done()#保存画布
-#背景
-Screen.bgcolor("blue")
\ No newline at end of file
+turtle.done()#保存画布
\ No newline at end of file