Java集 平等无视案件

或者，您可以使用

TreeSet

public static void main(String[] args){    Set<String> s1 = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);    s1.addAll(Arrays.asList(new String[] {"a", "b", "c"}));    Set<String> s2 = new TreeSet<String>(String.CASE_INSENSITIVE_ORDER);    s2.addAll(Arrays.asList(new String[] {"A", "B", "C"}));    System.out.println(s1.equals(s2));}