if (!-e $request_filename) {      rewrite ^.*$ /index.php last;    }
//出现的问题 用这个解决了，

NGINX 默认不支持 PATH_INFO 模式，需要修改NGINX配置 让NGINX 来解析 index.php/controller/f 这种模式 具体配置：#CIserver {        listen      80;        server_name www.ci.com;        index       index.php index.html index.htm;        root        "/servers/apps/CI";      location ~ \.php{       fastcgi_pass 127.0.0.1:9000;           fastcgi_index index.php;            ##########################################pathinfo 模式            set $path_info "";            set $real_script_name $fastcgi_script_name;            if ($fastcgi_script_name ~ "^(.+?\.php)(/.+)$"){                 set $real_script_name $1;                 set $path_info $2;            }            include fastcgi.conf;            fastcgi_param SCRIPT_FILENAME $document_root$real_script_name;            fastcgi_param SCRIPT_NAME $real_script_name;            fastcgi_param PATH_INFO $path_info;            ##########################################nginx支持pathinfo 模式的重点           }      }