删除ASCII问号

Question

I have the following String passed from another application. 我从另一个应用程序传递了以下字符串。

2&#65533;4&#65533;9&#65533;

(2 4 9 ) （249）

I would like to remove question mark ascii characters from the above string. 我想从上面的字符串中删除问号ascii字符。

How could I do this? 我怎么能这样做？

Answer 1

According to this Unicode code table , � 根据此Unicode代码表， � (or \� ) is the character . （或\� ）是角色。

You can remove this unicode character from your string with : 您可以使用以下命令从字符串中删除此unicode字符：

str = str.replaceAll("&#65533;", "");

But you should really try to understand why they are there. 但你应该真的试着理解它们为什么存在。

Answer 2

string.replaceAll("\u0000.*","").replaceAll("[^a-zA-Z0-9 ]", "");

将删除字符串变量中的空格和标点符号。