nginx服务器怎样去掉url中的index.php

如题，nginx服务器已配置了rewrite。但是怎样怎样去掉url中的index.php

---

http://docs.typecho.org/servers?s[]=nginx

    server {
        listen          80;
        server_name     yourdomain.com;
        root            /home/yourdomain/www/;
        index           index.html index.htm index.php;

        if (!-e $request_filename) {
            rewrite ^(.*)$ /index.php$1 last;
        }

        location ~ .*\.php(\/.*)*$ {
            include fastcgi.conf;
            fastcgi_pass  127.0.0.1:9000;
        }

        access_log logs/yourdomain.log combined;
    }