auto save

dai.py

+# import turtle
+# screen=turtle.Screen()
+# screen.bgcolor('black')  #背景填色
+# pen=turtle.Pen()
+# pen.speed(100)
+# colors=['red','pink','yellow','blue']
+# for i in range(300):
+#     pen.color(colors[i%4])
+#     pen.fd(i+1)
+#     pen.left(91)
+# pen.hideturtle()
+# turtle.done()
+
+a=5
+b=7
+print(a,'*',b,'=',(a*b))
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