save project

diy2.py

@@ -3,8 +3,15 @@ userpassword = "1"
 while True:# 保存在服务器数据库中的用户密码（正确的密码）# 请用input()实现用户输入账号、密码的功能
     usernameS=input('请输入username：')
     userpasswordS=input('请输入userpassword：')# 如果用户输入的账号、密码正确，提示登陆成功
-    if username == usernameS and userpassword == userpasswordS:
+    if username == usernameS:
+        if userpassword == userpasswordS:
             print('登陆成功/n欢迎来到贝尔编程')
             print()
             break
-    print('登陆失败')
\ No newline at end of file
+        if userpassword != userpasswordS:
+            print('密码输入错误')
+    if username != usernameS:
+        if userpassword == userpasswordS:
+            print('用户名输入错误')
+        if userpassword != userpasswordS:
+            print('用户名密码均输入错误')
\ No newline at end of file