Java 删除非字母数字字符之间的空白

如何删除非字母数字字符之间的空白？比如说

到

---

您可以使用此基于查找的正则表达式进行搜索：

(?<![\p{L}\p{N}]) +| +(?![\p{L}\p{N}])

（？
并用空字符串替换它


在Java中：

String repl = input.replaceAll( "(?<![\\p{L}\\p{N}]) +| +(?![\\p{L}\\p{N}])", "" );

String repl=input.replaceAll（“（？请像这样尝试正则表达式：

public static void main(String[] args) {
    String s1 = "anti - C6 / 36 membrane antibodies";
    String s2 = "D2 NS1 - P1 - specific antibodies";
    String pattern = "\\s+(?=[^a-zA-Z0-9]+)|(?<=[^a-zA-Z0-9])\\s+";// replace all spaces either preceeded by or followed by a non-alphanumeric character
    System.out.println(s1.replaceAll(pattern, ""));
    System.out.println(s2.replaceAll(pattern, ""));
}

我们是否也应该按字母顺序加入dot
？
String repl = input.replaceAll( "(?<![\\p{L}\\p{N}]) +| +(?![\\p{L}\\p{N}])", "" );

(?<=\W)[ ]+|[ ]+(?=\W)

(?<=\\W)[ ]+|[ ]+(?=\\W)

public static void main(String[] args) {
    String s1 = "anti - C6 / 36 membrane antibodies";
    String s2 = "D2 NS1 - P1 - specific antibodies";
    String pattern = "\\s+(?=[^a-zA-Z0-9]+)|(?<=[^a-zA-Z0-9])\\s+";// replace all spaces either preceeded by or followed by a non-alphanumeric character
    System.out.println(s1.replaceAll(pattern, ""));
    System.out.println(s2.replaceAll(pattern, ""));
}

anti-C6/36 membrane antibodies
D2 NS1-P1-specific antibodies