正则表达式--反斜杠
import java.util.regex.Matcher; import java.util.regex.Pattern; String s = "c:\\test.txt"; //String regEx = ".+[\\\\]{0,}.+$"; String regEx = "\\\\"; Pattern pat = Pattern.compile(regEx); Matcher mat = pat.matcher(s); while(mat.find()){ System.out.println(mat.group()); }