我找到了答案here. 别忘了进去，给它一个赞。

我会把它贴在这里，给匆忙的人看。

将其放入functions.php-文件：

function wp1482371_custom_post_type_args( $args, $post_type ) {
  if ( $post_type == "post" ) {
    $args[\'rewrite\'] = array(
      \'slug\' => \'blog\'
    );
  }

  return $args;
}
add_filter( \'register_post_type_args\', \'wp1482371_custom_post_type_args\', 20, 2 );

记住

Remember A) 记住在之后更新你的永久链接（通过进入Settings >> Permalinks >> Click \'Save Changes\' ).

Remember B) 如果你得到了wierd结果，那么试着打开一个匿名窗口，看看它是否有文字。WordPress具有重定向到的功能\'Nearest Matching URL\', 在玩permalinks的时候，这看起来很混乱。

你也可以尝试找到一个插件来实现这一点。我不会这么做，因为仅仅为了这个目的添加插件是相当广泛的。但是，嘿，有时用大炮射杀鸟是令人满意的（没有鸟因为这个笑话而受到伤害）。

你试过这个吗？

function generate_rewrite_rules( $wp_rewrite ) {
      $new_rules = array(
        \'(.?.+?)/page/?([0-9]{1,})/?$\' => \'index.php?pagename=$matches[1]&paged=$matches[2]\',
        \'blog/([^/]+)/?$\' => \'index.php?post_type=post&name=$matches[1]\',
        \'blog/[^/]+/attachment/([^/]+)/?$\' => \'index.php?post_type=post&attachment=$matches[1]\',
        \'blog/[^/]+/attachment/([^/]+)/trackback/?$\' => \'index.php?post_type=post&attachment=$matches[1]&tb=1\',
        \'blog/[^/]+/attachment/([^/]+)/feed/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&attachment=$matches[1]&feed=$matches[2]\',
        \'blog/[^/]+/attachment/([^/]+)/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&attachment=$matches[1]&feed=$matches[2]\',
        \'blog/[^/]+/attachment/([^/]+)/comment-page-([0-9]{1,})/?$\' => \'index.php?post_type=post&attachment=$matches[1]&cpage=$matches[2]\',     
        \'blog/[^/]+/attachment/([^/]+)/embed/?$\' => \'index.php?post_type=post&attachment=$matches[1]&embed=true\',
        \'blog/[^/]+/embed/([^/]+)/?$\' => \'index.php?post_type=post&attachment=$matches[1]&embed=true\',
        \'blog/([^/]+)/embed/?$\' => \'index.php?post_type=post&name=$matches[1]&embed=true\',
        \'blog/[^/]+/([^/]+)/embed/?$\' => \'index.php?post_type=post&attachment=$matches[1]&embed=true\',
        \'blog/([^/]+)/trackback/?$\' => \'index.php?post_type=post&name=$matches[1]&tb=1\',
        \'blog/([^/]+)/feed/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&name=$matches[1]&feed=$matches[2]\',
        \'blog/([^/]+)/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&name=$matches[1]&feed=$matches[2]\',
        \'blog/page/([0-9]{1,})/?$\' => \'index.php?post_type=post&paged=$matches[1]\',
        \'blog/[^/]+/page/?([0-9]{1,})/?$\' => \'index.php?post_type=post&name=$matches[1]&paged=$matches[2]\',
        \'blog/([^/]+)/page/?([0-9]{1,})/?$\' => \'index.php?post_type=post&name=$matches[1]&paged=$matches[2]\',
        \'blog/([^/]+)/comment-page-([0-9]{1,})/?$\' => \'index.php?post_type=post&name=$matches[1]&cpage=$matches[2]\',
        \'blog/([^/]+)(/[0-9]+)?/?$\' => \'index.php?post_type=post&name=$matches[1]&page=$matches[2]\',
        \'blog/[^/]+/([^/]+)/?$\' => \'index.php?post_type=post&attachment=$matches[1]\',
        \'blog/[^/]+/([^/]+)/trackback/?$\' => \'index.php?post_type=post&attachment=$matches[1]&tb=1\',
        \'blog/[^/]+/([^/]+)/feed/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&attachment=$matches[1]&feed=$matches[2]\',
        \'blog/[^/]+/([^/]+)/(feed|rdf|rss|rss2|atom)/?$\' => \'index.php?post_type=post&attachment=$matches[1]&feed=$matches[2]\',
        \'blog/[^/]+/([^/]+)/comment-page-([0-9]{1,})/?$\' => \'index.php?post_type=post&attachment=$matches[1]&cpage=$matches[2]\',
      );
      $wp_rewrite->rules = $new_rules + $wp_rewrite->rules;
    }
    add_action( \'generate_rewrite_rules\', \'generate_rewrite_rules\' );

    function update_post_link( $post_link, $id = 0 ) {
      $post = get_post( $id );
      if( is_object( $post ) && $post->post_type == \'post\' ) {
        return home_url( \'/blog/\' . $post->post_name );
      }
      return $post_link;
    }
    add_filter( \'post_link\', \'update_post_link\', 1, 3 );

//Place code in function.php 
add_action(\'init\', \'my_new_default_post_type\', 1); 
function my_new_default_post_type() 
{ 
register_post_type(\'post\', 
array(
// \'labels\' => $labels, 
\'public\' => true, 
//\'show_in_admin_bar\' => true,
\'_builtin\' => false, 
\'_edit_link\' => \'post.php?post=%d\', 
\'capability_type\' => \'post\', 
\'map_meta_cap\' => true, 
\'hierarchical\' => false, 
\'rewrite\' => array(\'slug\' => \'resources/blog\'), // Add your slug here 
\'query_var\' => false, 
\'supports\' => array(\'title\', \'editor\', \'author\', \'thumbnail\', \'excerpt\', \'trackbacks\', \'custom-fields\', \'comments\', \'revisions\', \'post-formats\'),
)); 
/* If you add above code in function.php, Your blog pagination is stopped to working, You need to add rewrite rule using "Debug This" Plugin under Query >> Rewrite Section & modify your rewrite_rule. */ 
add_rewrite_rule(\'(.?.+?)/page/?([0-9]{1,})/?$\', \'index.php?pagename=resources/blog&paged=$matches[1]\', \'top\'); }