命令行执行：
brew search nginx
会出现：
nginx homebrew/nginx/accept-language-nginx-module homebrew/nginx/accesskey-nginx-module homebrew/nginx/ajp-nginx-module homebrew/nginx/anti-ddos-nginx-module homebrew/nginx/array-var-nginx-module homebrew/nginx/auth-digest-nginx-module homebrew/nginx/auth-ldap-nginx-module homebrew/nginx/auth-pam-nginx-module homebrew/nginx/auto-keepalive-nginx-module homebrew/nginx/autols-nginx-module homebrew/nginx/cache-purge-nginx-module homebrew/nginx/captcha-nginx-module homebrew/nginx/counter-zone-nginx-module homebrew/nginx/ctpp2-nginx-module homebrew/nginx/dav-ext-nginx-module homebrew/nginx/dosdetector-nginx-module homebrew/nginx/echo-nginx-module homebrew/nginx/eval-nginx-module homebrew/nginx/extended-status-nginx-module homebrew/nginx/fancyindex-nginx-module homebrew/nginx/geoip2-nginx-module homebrew/nginx/headers-more-nginx-module homebrew/nginx/healthcheck-nginx-module homebrew/nginx/http-accounting-nginx-module homebrew/nginx/http-flood-detector-nginx-module homebrew/nginx/http-remote-passwd-nginx-module homebrew/nginx/log-if-nginx-module homebrew/nginx/lua-nginx-module homebrew/nginx/mod-zip-nginx-module homebrew/nginx/mogilefs-nginx-module homebrew/nginx/mp4-h264-nginx-module homebrew/nginx/mruby-nginx-module homebrew/nginx/naxsi-nginx-module homebrew/nginx/nchan-nginx-module homebrew/nginx/nginx-full homebrew/nginx/notice-nginx-module homebrew/nginx/php-session-nginx-module homebrew/nginx/push-stream-nginx-module homebrew/nginx/realtime-req-nginx-module homebrew/nginx/redis-nginx-module homebrew/nginx/redis2-nginx-module homebrew/nginx/rtmp-nginx-module homebrew/nginx/set-misc-nginx-module homebrew/nginx/small-light-nginx-module homebrew/nginx/stream-lua-nginx-module homebrew/nginx/subs-filter-nginx-module homebrew/nginx/tcp-proxy-nginx-module homebrew/nginx/txid-nginx-module homebrew/nginx/unzip-nginx-module homebrew/nginx/upload-nginx-module homebrew/nginx/upload-progress-nginx-module homebrew/nginx/upstream-order-nginx-module homebrew/nginx/ustats-nginx-module homebrew/nginx/var-req-speed-nginx-module homebrew/nginx/vod-nginx-module homebrew/nginx/websockify-nginx-module homebrew/nginx/xsltproc-nginx-module
然后执行：
brew install nginx
提示：Error: Cannot write to /usr/local/Cellar
然后更换用 sudo brew install nginx就可以了
==> Installing dependencies for nginx: pcre
==> Installing nginx dependency: pcre
==> Downloading https://homebrew.bintray.com/bottles/pcre-8.38.el_capitan.bottle
######################################################################## 100.0%
==> Pouring pcre-8.38.el_capitan.bottle.tar.gz
======= nginx的默认配置＝＝＝＝＝＝＝
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 8080;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
include servers/*;
}