摘要：
public class Test4 { public static void main(String[] args) { char[] oldarr = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j' }; String s2 = s2(old 阅读全文
摘要：
public class Test3 { public static void main(String[] args) { String s1 = "ab"; String s2 = "abdkjfabdgjab"; System.out.println(count(s1, s2)); } publ 阅读全文
摘要：
public class Test2 { public static void main(String[] args) { String str = "love"; System.out.println(daoxu(str)); } public static String daoxu(String 阅读全文