save project

diy1.py

@@ -5,8 +5,12 @@ while True:
     name=input("请输入账号")
     password=input("请输入密码")
 # 如果用户输入的账号、密码正确，提示登陆成功
-    if name==username and password==userpassword:
-        print("登入成功")
-        break
+    if name==username:
+        if password==userpassword:
+            print("登入成功")
+            break
+        else:
+            print("密码错误")   
     else:
-        print("登入失败")
\ No newline at end of file
+        print("用户名错误")
+print("欢迎来到贝尔编程")
\ No newline at end of file