auto save

diy1.py

-username=" "
-userpassword=" "
-while True:
-    name=input("请输入用户名：")
-    password=input("请输入密码：")
-    if name==username and password == userpassword:
-        print("登录成功!")
-        break
-    if name!=username:
-        print("用户名不存在！请重新输入")
-    if password!=userpassword:
-        print("密码输入错误！请重新输入")
+import turtle
+
+pen = turtle.Pen()
+colors=["red","orange","yellow","green"]
+for i in range(1,300):
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
+    pen.right(91)
+# 隐藏画笔，保存画布
+pen.hideturtle()
+turtle.done()
\ No newline at end of file
-    print("用户名和密码错误！请重新输入")
-print("欢迎来到贝尔编程！")
\ No newline at end of file