server {
  listen  80;
  server_name hehe.weige.com;
  #charset koi8-r;
  #access_log logs/host.access.log main;
location / {
   root html-hehe;
   index index.html index.htm;
  }
}

nginx version: nginx/1.12.2
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC)
built with OpenSSL 1.0.2k-fips 26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/share/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --http-client-body-temp-path=/var/lib/nginx/tmp/client_body --http-proxy-temp-path=/var/lib/nginx/tmp/proxy --http-fastcgi-temp-path=/var/lib/nginx/tmp/fastcgi --http-uwsgi-temp-path=/var/lib/nginx/tmp/uwsgi --http-scgi-temp-path=/var/lib/nginx/tmp/scgi --pid-path=/run/nginx.pid --lock-path=/run/lock/subsys/nginx --user=nginx --group=nginx --with-file-aio --with-ipv6 --with-http_auth_request_module --with-http_ssl_module --with-http_v2_module --with-http_realip_module --with-http_addition_module --with-http_xslt_module=dynamic --with-http_image_filter_module=dynamic --with-http_geoip_module=dynamic --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_degradation_module --with-http_slice_module --with-http_stub_status_module --with-http_perl_module=dynamic --with-mail=dynamic --with-mail_ssl_module --with-pcre --with-pcre-jit --with-stream=dynamic --with-stream_ssl_module --with-google_perftools_module --with-debug --with-cc-opt='-O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic' --with-ld-opt='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-E'

$ pwd
/etc/nginx
$ sudo mkdir vhost
$ ls
conf.d    fastcgi_params   mime.types   scgi_params   vhost
default.d    fastcgi_params.default mime.types.default scgi_params.default win-utf
fastcgi.conf   koi-utf     nginx.conf   uwsgi_params
fastcgi.conf.default koi-win     nginx.conf.default uwsgi_params.default

$ pwd
/etc/nginx
$ cd vhost/
$ pwd
/etc/nginx/vhost
$ sudo touch mysite.conf
$ ls
mysite.conf trans.conf

server {
  listen  80;  # 网站的端口一般为 80，可以与其他网站一起使用该端口
  server_name mysite.jinhangdev.cn; # 要绑定的域名（或子域名）
  root   /home/www/mysite; # 该网站的根目录
  location / {  # 不用管
  }
}

$ pwd
/etc/nginx/vhost
$ ls
mysite.conf trans.conf
$ sudo vim mysite.conf
$ cat mysite.conf
server {
  listen 80;
  server_name mysite.jinhangdev.cn;
  root /home/www/mysite;
  location /{
  }
}

$ pwd
/etc/nginx
$ sudo cp nginx.conf nginx.conf.bak

http {
 （各种配置）
}

http {
 (此处的配置是全局的配置参数)
 server {
 (此处的配置是本 server 的配置参数)
 }
 server {
 (此处的配置是本 server 的配置参数)
 }
 (此处的配置是全局的配置参数)
}

http {
 （前面的若干配置）
 include /etc/nginx/vhost/*.conf;
}

$ cd /home/www/
$ mkdir mysite
$ ls
mysite trans

$ pwd
/home/www
$ cd mysite/
$ echo hello! > index.html
$ ls
index.html
$ cat index.html
hello!