auto save

diy4.py

+# username = "python"
+# userpassword = "123456"
+
+# while True:
+#     name = input("请输入你的用户名:")
+#     password = input("请输入你的密码:")
+#     if name == username and password == userpassword:
+#         print("登录成功")
+#         break
+#     if name != username:
+#         print("账号错误")
+#     if password != userpassword:
+#         print("密码错误")
+# print("欢迎来到贝尔编程")
+
+i = 0 
+while i <= 5:
+    i
\ No newline at end of file