auto save

diy2.py

 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
-    name = input("请输入用户名:")
+    name = input("请输入账号:")
     password = input("请输入密码:")
     password = input("请输入密码:")
-    if name == username and password == userpassword:
+    if name == name1 and password == userpassword:
         print("登录成功!")
         print("登录成功!")
-    print("用户名和密码错误!请重新输入")
+        break
+    if name != name1:                   
+        print("账号错误，请重新输入")
+    if password != password1:
+        print("密码错误，请重新输入")                       
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file