我的服务器是NGINX，所以先查看NGINX的错误日志
tail /var/log/nginx/error.log -n 10上传一次大图像，然后看日志最后一条的信息是
2021/04/23 10:17:11 [error] 212420#212420: *166782 client intended to send too large body: 6849556 bytes, client: 120.85.112.147, server: zuoridangnian.com, request: “POST /wp-admin/async-upload.php HTTP/1.1”, host: “zuoridangnian.com”, referrer: “https://zuoridangnian.com/wp-admin/upload.php”
错误是：
client intended to send too large body解决办法是：
在NGINX配置文件中添加
client_max_body_size 80m;添加在 server 内对单独网站生效，添加在 http 块中对所有网站生效
如果你的服务器错误日志中是其它错误，就查其它的解决办法