从面板中删除默认的Widget部件的代码（删除Wordpress面板中默认的Widget部件）：
// Create the function to use in the action hook
function example_remove_dashboard_widgets() {
// Globalize the metaboxes array, this holds all the widgets for wp-admin
global $wp_meta_boxes;
// Remove the incomming links widget
unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_incoming_links']);
// Remove right now
unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_right_now']);
unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_primary']);
unset($wp_meta_boxes['dashboard']['side']['core']['dashboard_secondary']);
}
// Hoook into the 'wp_dashboard_setup' action to register our function
add_action('wp_dashboard_setup', 'example_remove_dashboard_widgets' );