save project

diy2.py

-i=3
-username = "python"
-userpassword = "123456"
-while True:
-        if i>0:
-            name = input("请输入用户名")
-            password = input("请输入密码")
-            i-=1
-            if name == username and password == userpassword:
-                print("登录成功!")
-                break
-            if name!=username:
-                print("用户名错误!请重新输入")
-                print("你还有"+str(i)+"次机会")
-                continue
-            if password!=userpassword:
-                print("密码错误!请重新输入")
-                print("你还有"+str(i)+"次机会")
-        else:
-            print("艹你账号锁定了")
-            exit()
-print("欢迎来到贝尔编程!")
-
-
-
+import turtle
+pen=turtle.Pen()
+j=1
+for i in range(300):
+    pen.forward(j)
+    j+=1
+    pen.right(91)
+pen.hideturtle()
+turtle.done()