URL change, RewriteRule regular expression

The website address changed. for help, the RewriteRule regular expression was changed because the previous website address was not properly configured. However, I did not expect that Baidu submitted and deleted the website for a long time. now it is still the previous website address, in order not to affect customer access, we want to batch redirect old URLs to new URLs. the old format is as follows: http://www.songhuala.com/p1099/ /c.
Because the previous web site felt that it was not standard enough, so I adjusted the URL again, but I did not expect that Baidu submitted and deleted the Web site for a long time. now it is still included in the previous web site, in order not to affect customer access, now I want to batch redirect old URLs to new URLs,
The old format is as follows: http://www.songhuala.com/p1099/beijing gift /china_flowers_info.html
New format: http://www.songhuala.com/-p-1099.html

I made the following redirection in. htaccess,

RewriteEngine on
RewriteCond % {REQUEST_URI} ^ p/d + \/. * \/China_flowers_info \. html $
RewriteRule ^ (. *) $ ^-p-/d + \. html $1 [R = 301, L]

However, the correct new URL cannot be targeted. I hope my friends can help me to test this regular expression for one afternoon. Thank you for your patience. Grateful. . Htaccess regular expression RewriteRule batch URL redirection seo? Url? Rewrite
------ Solution --------------------
RewriteCond % {REQUEST_URI} ^ p/d + \/. * \/China_flowers_info \. html $
RewriteRule ^ (. *) $ ^-p-/d + \. html $1 [R = 301, L]

The marked red part seems to be incorrect.
------ Solution --------------------
RewriteEngine On
RewriteBase/
RewriteCond % {REQUEST_URI} p (\ d +)
RewriteRule p (\ d +) http://www.songhuala.com/-p-00001.html [R = permanent, L]