在反向代理的配置中填写以下的代码：（复制双横线以内）

======================================================

#PROXY-START/

location ^~ /
{
proxy_pass https://api.openai.com;
proxy_set_header Host api.openai.com;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header REMOTE-HOST $remote_addr;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_http_version 1.1;
proxy_ssl_server_name on;
proxy_ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
# proxy_hide_header Upgrade;

add_header X-Cache $upstream_cache_status;
#Set Nginx Cache

set $static_filer4u4DiVj 0;
if ( $uri ~* "\.(gif|png|jpg|css|js|woff|woff2)$" )
{
set $static_filer4u4DiVj 1;
expires 1m;
}
if ( $static_filer4u4DiVj = 0 )
{
add_header Cache-Control no-cache;
}
}
#PROXY-END/

=================================================

这段代码是一个Nginx反向代理配置，用于将请求转发到https://api.openai.com。以下是代码的注释版本：

```nginx
#PROXY-START - 代理服务器开始

location ^~ / {
# 代理转发到OpenAI API
proxy_pass https://api.openai.com;

# 设置Host头为api.openai.com
proxy_set_header Host api.openai.com;

# 设置X-Real-IP为远程地址
proxy_set_header X-Real-IP $remote_addr;

# 设置X-Forwarded-For为代理添加的X-Forwarded-For
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

# 设置REMOTE-HOST为远程地址
proxy_set_header REMOTE-HOST $remote_addr;

# 设置Upgrade头为HTTP升级
proxy_set_header Upgrade $http_upgrade;

# 设置Connection头为连接升级
proxy_set_header Connection $connection_upgrade;

# 设置代理HTTP版本为1.1
proxy_http_version 1.1;

# 启用代理SSL服务器名称
proxy_ssl_server_name on;

# 设置代理SSL协议为TLSv1、TLSv1.1和TLSv1.2
proxy_ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

# 隐藏Upgrade头（未启用）
# proxy_hide_header Upgrade;

# 添加X-Cache头，值为上游缓存状态
add_header X-Cache $upstream_cache_status;

# 设置Nginx缓存

# 设置静态文件缓存标志为0
set $static_filer4u4DiVj 0;

# 如果URI匹配特定类型的静态文件（如图片、CSS、JavaScript等），则设置静态文件缓存标志为1，并设置过期时间为1分钟
if ($uri ~* "\.(gif|png|jpg|css|js|woff|woff2)$") {
set $static_filer4u4DiVj 1;
expires 1m;
}

# 如果静态文件缓存标志为0，则添加Cache-Control头，值为no-cache
if ($static_filer4u4DiVj = 0) {
add_header Cache-Control no-cache;
}
}

#PROXY-END - 代理服务器结束
```

这段代码的主要功能是将客户端的请求代理到OpenAI API，同时处理静态文件的缓存和HTTP头信息。