问题

如何用分隔符替换字符串中的空格和 \r ？

String oldDelimiter = " ";
String newDelimiter = "o";
String fileContent = "try some random %!(chars)!% ##\r" +
"or line break$@ \r" +
":(";
fileContent = fileContent.replaceAll("[" + oldDelimiter + "]+", newDelimiter);
fileContent = fileContent.replaceAll("\r", newDelimiter);

当前输出：`tryosomeo**random**o%!(chars)!%o##oorolineobreak$@oo:(`

期望输出：`tryosomeo**random**o%!(chars)!%o##oorolineobreak$@o:(`

请注意，在 `@` 符号后面的字符串末尾有额外的字母 `o`。

更新：只有在出现 `space` 或 `\r` 时才应替换为 `o`。但是，如果 `space` 和 `\r` 彼此相邻，则只替换为一个 `o` 分隔符。

<details>
<summary>英文:</summary>

How to replace space and \r in string with delimiter value?

String oldDelimiter = " ";
String newDelimiter = "o";
String fileContent = "try some random %!(chars)!% ##\r" +
"or line break$@ \r" +
":(";
fileContent = fileContent.replaceAll("[" + oldDelimiter + "]+", newDelimiter);
fileContent = fileContent.replaceAll("\r", newDelimiter);

current output: `tryosomeo**random**o%!(chars)!%o##oorolineobreak$@oo:(`

desired output: `tryosomeo**random**o%!(chars)!%o##oorolineobreak$@o:(`

Notice the extra letter `o` towards the end of the string after the `@` symbol. 

Update: it should only replace with o if there is a `space` or `\r`. However, if both `space` and `\r` and next to each other, then only replace with one `o` delimiter.

</details>


# 答案1
**得分**: -2

像安德烈亚斯所说，使用“[ \r]”来替换所有的\r和“ ”为空格。

fileContent = fileContent.replaceAll(" [ \r]+", "o");

<details>
<summary>英文:</summary>

Like Andreas said, use the &quot;[ \r]&quot; to replace all of the \r and &quot; &quot; with spaces.

    fileContent = fileContent.replaceAll(&quot;[ \r]+&quot;, &quot;o&quot;);

</details>