摘要:
#region 连接本地数据库 private OleDbConnection con; /// <summary> /// 打开数据库连接 /// </summary> /// <param name="DBpath">数据库路径(包括数据库名)</param> private void Open(String DBpath) { if (con == null) con = new OleDbConnection(@" Provider = Microsoft.Jet.OLEDB.4.0 ; Data Sourc 阅读全文