Demoing or teaching code is difficult. A PowerShell demo traditionally use the old PowerShell ISE, copy/paste and relying on PSReadLine to highlight syntax, or switching between something like VSCode ...
//if one times can't finish process,we need set delay function that nginx will delay 'some time' check process is finished. static void ngx_http_demo_delay(ngx_http_request_t *r); //user util function ...