将此代码放入函数中。php文件

add_action( \'admin_print_scripts-post.php\',     \'wpse22643_overwrite_wplinks\' );
add_action( \'admin_print_scripts-post-new.php\', \'wpse22643_overwrite_wplinks\' );

function wpse22643_overwrite_wplinks( $hook ) {

    // register is important, that other plugins will change or deactivate this
    wp_register_script(
        \'overwrite-wplinks\', 
        get_stylesheet_directory_uri() . \'/js/overwrite-wplinks.js\',
        array( \'jquery\' ),
        \'\',
        TRUE
    );
    wp_enqueue_script( \'overwrite-wplinks\' );
}

( function( $ ) {

   if ( typeof wpLink == \'undefined\' )
       return;

   wpLink.setDefaultValues = function () { 

   $(\'#link-selector p:nth-child(2).howto\').css(\'display\',\'none\');

  };

} )( jQuery );

我在一些人的博客上找到了这段代码，但它对我有效，解决了我的问题

add_action( \'after_wp_tiny_mce\', function( $settings )
{
    // Check for the \'wplink\' editor plugin
    if(    isset( $settings[\'content\'][\'plugins\'] )
        && false !== strpos( $settings[\'content\'][\'plugins\'], \'wplink\' )
    )
        echo \'<style>
                  #link-selector > .howto, #link-selector > #search-panel { display:none; }
        </style>\';
} );