problem description ffmpeg compiler error undefined reference to `avformat_version wrote a test code using ffmpeg-4.0.2-win64-dev downloaded from ffmpeg s official website, but failed to compile ** * test.c * -sharpinclude <stdio.h> ...
mongodb also seems to have the concept of connection pooling. The default maximum number of connections is 1024, and each connection consumes a certain amount of memory resources. How to understand this "connection " of mongobd? For example, in node,...
I am doing an official account Wechat login. I jump to Wechat s authorization with the following code: header("Location:https: open.weixin.qq.com connect oauth2 authorize?appid=".$this->appid."&redirect_uri=".$REDIRECT_URI...
The iview select on-clear event cannot trigger ...
Wechat s official account project has a form page with a classification option that is a new page (the style is similar to this http: vue.ydui.org demo -sharp sc., but not a front-end separation project), and the back end now wants to integrate it int...
Code: ready.touch = function (elem, fn) { elem.addEventListener( click , function (e) { fn.call(this, e); }, false); }; question: what is the purpose of this here? Who does it point to when the click event is ...