save project

diy2.py

@@ -4,8 +4,10 @@ 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("欢迎来到贝尔编程!")
+        print("登录成功!")    
         break
-    if name !='sb' or password!='123456':
-        print("用户名和密码错误!请重新输入")
+    if name !=username  :
+        print("用户名错误!请重新输入")
+    else:
+        print("用密码错误!请重新输入")    
+print("欢迎来到贝尔编程!")
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