save project

diy2.py

-i = 5   # 行
-j = 3   # 列
-# 使用变量i和j，代替乘法算式里面的元素，打印出单个乘法算式
-print("j","x","=",(jxi))
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+import turtle
+pen=turtle.Pen()
+pen.speed(900)
+colors=["red","orange","yellow","green"]
+for i in range(1,300):
+    pen.pencolor(colors[i%4])
+    pen.forward(i)
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
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