win服务器和linux服务器301转向代码
win服务器：
RewriteCond %{HTTP:Host} ^haochezuo.com$
RewriteRule (.*) http://www.haochezuo.com$1 [NC,R=301]
linux服务器：
rewriteEngine on
rewriteCond %{http_host} ^haochezuo.com [NC]
rewriteRule ^(.*)$ http://www.haochezuo.com/$1 [R=301,L]
