save project

diy1.py

+"""
+使用turtle模块画图
+每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效      
+"""
+
+import turtle
+p=turtle.Pen()
+s=turtle.Screen()
+s.bgcolor("black")
+p.speed(20)
+cs=["blue","white","yellow","red"]  
+for i in range(1,700):
+    p.pencolor(cs[i%4])
+    p.forward(i)
+    p.right(91)
+p.hideturtle()
+turtle.done() 
+  
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