摘要: 代码示例: import java.sql.*; public class Renewal { // 创建类static Connection con; // 声明Connection对象static PreparedStatement sql; // 声明PreparedStatement对象st 阅读全文
posted @ 2020-12-16 16:49 CherriesOvO 阅读(916) 评论(0) 推荐(0)