19.2.1 state属性.html

javascript即用即差核心对象手册

    <!-- 包含头文件-->
	<script type="text/javascript" src="adojavas.inc"> </script>
    <script type="text/javascript">
         var objconn=new ActiveXObject("ADODB.Connection");
         var dbPath="E:\\database.mdb";
		 objconn.CursorLocation =3;
		 objconn.Provider="microsoft.jet.oledb.4.0";
		 objconn.ConnectionString="Data Source="+dbPath;
         with(document)
		 {
		     write(getState());
			 objconn.Open();
			 write(getState());
		     objconn.Close();
			 write(getState());
		  }
		  //定义函数输出connection对象的状态
		  function getState()
		  {
		      switch(objconn.State)
			  {
			     case adStateClosed:
				    return "处于关闭状态<br>";
				 case adStateOpen:
				    return "处于打开状态<br>";
			  }
		  }
    </script>