save project

123.py

+import turtle
+
+pen=turtle.Pen()
+distance=1
+for i in range(300)
+    pen.forward(distance)
+    distance+=1
+    pen.right(91)
+pen.hideturtle()
+turtle.done()
\ No newline at end of file

SB.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+    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("温馨提示：")
\ No newline at end of file