save project

diy1.py

@@ -3,13 +3,16 @@
 每次移动都增加画笔移动的长度，并旋转91°，重复执行300次，查看效果
 """
 import turtle
-
+n = ["blue","green","red","yellow"]
+screen = turtle.Screen()
+screen.bgcolor("black")
 pen = turtle.Pen()
 # 请创造师在下面接着创作
-distance=1
-for i in range(300):
-    distance+=1
-    pen.right(121)
+for i in range(1,300):
+    pen.pencolor(n[i%4])
+    pen.forward(i)
+    pen.right(91)
+    
 # 隐藏画笔，保存画布
 pen.hideturtle()
 turtle.done()
\ No newline at end of file

diy2.py

+i=5
+j=3
+print(i,'*',j,'=',i * j)