本文介绍了删除ASCII问号的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我从另一个应用程序传递了以下字符串.
I have the following String passed from another application.
2�4�9�
(2� 4� 9�)
(2�4�9�)
我想从上述字符串中删除问号ascii字符.
I would like to remove question mark ascii characters from the above string.
我该怎么办?
推荐答案
根据此 Unicode代码表，�(或\ufffd)是字符�.
According to this Unicode code table, � (or \ufffd) is the character �.
您可以使用以下命令从字符串中删除此Unicode字符:
You can remove this unicode character from your string with :
str = str.replaceAll("�", "");
但是您应该真正地理解为什么为什么.
But you should really try to understand why they are there.
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