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:
+import turtle
+pen=turtle.Pen()
+screen=turtle.Screen()
+screen.bgcolor("black")
+colors=["green","purple","red","orange"]
+for i in range(1,300,2):
+    pen.forward(i)
+    pen.pencolor(colors[i%4])
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
\ No newline at end of file
-            print("用户名错误！请重新输入！")
-            print("fgkbjs" + str(i) + "jysdgj")
-            continue 
-        if password != userpassword:
-            print("密码错误！请重新输入！")
-            print("fgkbjs" + str(i) + "jysdgj") 
-    else:
-        print("suoding！") 
-        exit()
-print("欢迎来到贝尔编程!")
\ No newline at end of file