auto save

demo.py

+str='qwerwrthyj'
+print(str[0:5].upper())
+print(round(0.1+0.2,1)==0.3)
+a=10
+b=30
+print(a/b)
+a = '[[1,2], [3,4], [5,6], [7,8], [9,0]]'
+b = eval(a)
+print(b)
+a=8//2  #向下取整
+print(a)
+import turtle
+p=turtle.Pen()
+p.fillcolor()
+str1='3.5'
+print(int(str1))
\ No newline at end of file

diy1.py

@@ -3,7 +3,7 @@ import turtle
 
 
 pen=turtle.Pen()
 pen=turtle.Pen()
 screen=turtle.Screen()
 screen=turtle.Screen()
-pen.speed(0)
+pen.speed(5)
 pen.hideturtle()
 pen.hideturtle()
 screen.bgcolor('black')
 screen.bgcolor('black')