save project

t.py

@@ -4,8 +4,12 @@ while True:
     a=input("账号密码是多少？")
     b=input("手机号码是多少？")
     if a ==  usename and b == userpassword:
-        print ("输入正确,登录成功")
+        print ("登录成功")
         break
     else:
         print ("输入错误，登录失败")
-   
\ No newline at end of file
+    if a !=  usename:
+        print ("用户名不存在，请重新输入！")
+    if b !=  userpassword:
+        print ("密码输入有误，请重新输入！")
+print ("欢迎来到贝尔编程")  
\ No newline at end of file