save project

121..py

@@ -6,5 +6,9 @@ while True:
     if name == username and password == passwor
     if name == username and password == passwor
         print("登录成功")
         print("登录成功")
         break
         break
-    print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程")    
+    if name != username: 
+        print("用户名不存在!请重新输入")
+        continue
+    if password != userpassword
+        print("密码输入有误，请重新输入")
+print("欢迎来到贝尔编程")          
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