auto save

diy1.py

 username = "python"   
 username = "python"   
 userpassword = "123456"    
 userpassword = "123456"    
 while True:
 while True:
-    name=input("请输入用户名：")
-    password=input("请输入密码：")
-    if name == username and password == userpassword：
+    name=input("请输入用户名:")
+    password=input("请输入密码:")
+    if name == username and password == userpassword:
         print("登陆成功")
         print("登陆成功")
         break
         break
+    if name != username:
         print("密码账号错误，请重新输入")
         print("密码账号错误，请重新输入")
+        if password != userpassword
+        
+
+
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")