auto save

diy1.py

 import turtle
 pen = turtle.Pen()
+screen = turtle.Screen()
+screen.bgcolor("black")
 pen.hideturtle()
+colors = ["red","orange","yellow","green"]
 pen.speed(1000)
-a = 1
-for i in range(500):
-    pen.forward(a)
+for i in range(1,300):
+    pen.forward(i)
     pen.left(91)
-    a = a+1
+    pen.pencolor(colors[i%4])
 turtle.done()
\ No newline at end of file

diy2.py

+import turtle
+pen = turtle.Pen()
+pen.hideturtle()
+pen.speed(1000)
+a = 1
+b = 1
+while b<101:
+    for i in range(390):
+        pen.forward(a)
+        pen.left(91)
+        a = a+1
+    a = 1
+    pen.up()
+    pen.goto(0,0)
+    pen.down()
+    pen.left(1)
+turtle.done()
\ No newline at end of file

diy3.py

+for i in range(1,10):
+    for j in range(10-i,0,-1):
+        print('*',end="  ")
+    print()
+