auto save

diy2.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:
-        print("登录成功!")
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+    name=input("请输入姓名：")
+    password=input("请输入密码：")
+    if name==username and password== userpassword:
+        print('登陆成功！')
+        break
+    if name!=username:
\ No newline at end of file
+        print("用户名错误")  
+        continue  
+    if password!=userpassword:
+        print("用密码错误")   
+    print("重新输入")
+print("欢迎来到贝编程")
\ No newline at end of file