save project

diy1.py

 import turtle  #引用海龟
 t = turtle.Turtle() 
+colors = ["blue","green","orange","yellow"]
 t.speed(0)
-distance = 1 
 for i in range(300):
-    t.forward(distance)
+    t.color(colors[i%4])
+    t.forward(i)
     t.left(91)
-    distance+=1
     
 turtle.done()
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