搜索function handle_404()函数 

去掉其函数内容 换成以下

function handle_404() {

global $wp_query;

if ( !is_admin() && ( 0 == count( $wp_query->posts ) ) && !is_404() && !is_robots() && !is_search() && !is_home() ) {

// Don't 404 for these queries if they matched an object.

if ( ( is_tag() || is_category() || is_tax() || is_author() ) && $wp_query->get_queried_object() ) {

if ( !is_404() )

status_header( 200 );

return;

}

$wp_query->set_404();

status_header( 404 );

nocache_headers();

} elseif ( !is_404() ) {

status_header( 200 );

}

}

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