save project

fong che.py

 import turtle
 import turtle
 p = turtle.Pen()
 p = turtle.Pen()
-b=1
 p.speed(100)
 p.speed(100)
-for i in range(300):
+for b in range(1,300):
     p.forward(b)
     p.forward(b)
-    b+=1
     p.right(91)
     p.right(91)
 # 隐藏画笔，保存画布
 # 隐藏画笔，保存画布
 p.hideturtle()
 p.hideturtle()