在正則表達式匹配中不替換換行符？

Question

我有以下代碼嘗試解析以＃開頭的行並用空字符串替換每一行，但換行不會被剝離：

- 輸入 -

# Remove this.
# remove this
# remove this line
keep # this line
keep this # line too

- 實際輸出（。代表空白行） -

.   
.
.
keep # this line
keep this # line too

- 預期產量

keep # this line
keep this # line too

- 代碼 -

    String text = "# Remove this.\n# remove this\n# remove this line\n" +
        "keep # this line\nkeep this # line too";
    System.out.println(text);
    Pattern PATTERN = Pattern.compile("^#(.*)$", Pattern.MULTILINE);
    Matcher m = PATTERN.matcher(text);
    if (m.find()) {
        text = m.replaceAll("").replaceAll("[\n]+$", "");
        System.out.println(text);
    }

如何刪除正則表達式匹配中的\\ n？

Answer 1

使用^#.*[\\n]選擇包含換行符的行。