摘要:
1:以字段开头模糊查询的like的方法查询 select * from t where t.user_code like 'A%' 2:以字段开头模糊查询的left(字段,长度)的方法查询 select * from t where left(t.user_code, 1)='A'; 3:字符间隔查 阅读全文
摘要:
解答: package string; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner input = new Scanner(System.in); whi 阅读全文