function  NavigateIE( $url )

{

     $ie   =  new - object  - com  " InternetExplorer.Application " ;

     $ie .navigate( $url );

     # ie.visible=ie.visible=true;

    [System.Threading.Thread] :: Sleep( 2000 );

     return   $ie ;

}

function  FindTag( $params )

{

     $ie   =   $params [ 0 ];

     $tagname   =   $params [ 1 ];

     $contain   =   $params [ 2 ];

     $doc   =   $ie .document;

     $tags   =   @ ( $doc .getElementsByTagName( $tagname ));

     foreach ( $tag   in   $tags )

    {

         if ( $tag .outerHTML.contains( $contain ))

        {

             $sel   =   $tag ;

             break ;

        }

    }

     return   $sel ;

}

$ie   =  NavigateIE( " http://weibo.com/12321 " );

$talk   =  FindTag( $ie ,  " textarea " , 'id = publish_editor');

$but   =  FindTag( $ie ,  " span " , 'class = bgColorB');

$talk .value  =   " test " ;

$but .click();