求助关于“找不到类型或命名空间名称”
string ConnString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=xsxxdb.mdb";
string SQLString ="SELECT * FROM Classinfo";
System.Data.OleDb .OleDbConnection OleDBConn1=new System.Data .OleDb .OleDbConnection (ConnString);
System.Data .OleDb .OleDbDataAdapter OleDbAdapter1=new System.Data .OleDb .OleDbDataAdapter(SQLString,OleDBConn1);
OleDbConn1.open();
Console.WriteLine("\t{0}",SQLString);
OleDbConn1.close();
运行的时候老提示“找不到类型或命名空间名称,是否缺少using指令或者程序集引用?可是前面我写了!using System;
using System.Data ;
using System.Data.OleDb ;”