auto save

diy2.py

+import turtle
+
+#创建画笔
+pen = turtle.Pen()
+
+screen = turtle.Screen()
+screen.bgcolor('black')
+
+pen.hideturtle()  #隐藏画笔
+pen.speed(-100)  #设置画笔移动的速度
+colors = ['red','yellow','green','orange']
+
+for i in range(10,1000):
+    pen.pencolor(colors[i%4])
+    pen.forward(i) #移动
+    pen.right(91)  #右转
+
+
+
+turtle.done()   #保存画布
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diy3.py

+#九九乘法表
+for i in range(1,10):
+    for j in range(1,i+1):
+        print(j,'*',i,'=',i*j,end='   ')
+    print()
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