随笔分类 -  设计模式具体实现

根据抽象工厂实现的DBHelpers类
摘要：public abstract class DBHelper { public static SqlConnection conn = new SqlConnection("server=longdabing;database=test;uid=sa;pwd=sasa"); public DBHelper() { c... 阅读全文
posted @ 2017-10-28 17:18 longdb 阅读(596) 评论(0) 推荐(0)