把对方支付宝拉黑或者删除掉对方会知道吗？

点开手机支付宝的朋友，对方通过对话框或可否看姓名判断是否被自己拉黑或被删除。
1、打开手机支付宝，点下端的朋友

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2、对方找到本人，点开本人昵称
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3、显示消息已发出，但被对方拒收了，就是被本人拉黑了。点开右上角的设置标识
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4、点开本人头像
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5、还可以看见本人姓名及完整的支付宝账号，说明还没有被本人删除
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6、若在对话框显示"XXX开启了好友验证,你还不是他(她)好友.请先发送好友验证请求,对方验证通过后,才能聊天.发送好友验证"，说明已被本人删除

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7、真实姓名显示"对方已隐藏"，支付宝账号带*号，不能显示完整的支付宝账号，说明已被本人删除

如果互相不转账是不会知道的，如果需要转账，拉黑之后不能转账，需添加之后才能转账，而删除好友还需要搜索不用添加可转账。

支付宝拉黑和删除的区别如下：

1、将对方支付宝拉黑，对方不能添加自己的支付宝账户为好友，因为虽然拉黑了，但好友身份还在。若是将对方支付宝账号删除了，对方可在支付宝账户的对话框按下发送好友验证按钮，发送添加好友申请。若是将对方支付宝账户拉黑了，恢复好友，只需点开设置-隐私，可恢复。

2、若是将对方支付宝账户删除，还需输入对方支付宝账户，搜索后，才可添加恢复。拉黑不能转账，删除可转账。