nginx pseudo-static problem

Question

How to configure nginx so that when www.x.cn/a is opened, www.x.cn/a.html is accessed

Answer 1

server {
  index index.html index.php;
  location / {
    try_files $uri $uri/ $uri.html $uri.php?$query_string;
  }
  location ~ \.php$ {
    try_files $uri =404;
    # add fastcgi_pass line here, depending if you use socket or port
  }
}

The core is the use of the try_files command, you can refer to the NGINX documentation