auto save

diy1.py

@@ -6,7 +6,12 @@ import turtle
 pen=turtle.Pen()
 pen.speed(0)
 pen.hideturtle()
+screen=turtle.Screen()
+a=["red","orange","yellow","green"]
+screen.bgcolor("black")
+pen.pencolor(a[0])
 for i in range(1,500):
     pen.forward(i)
     pen.right(91)
+    pen.pencolor(a[i%4])
 turtle.done()
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diy3.py

+for i in range(1,10):
+    for j in range(1,1+i):
+        print(j,"*",i,"=",(i*j),sep="",end="  ")
+    print()    
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