scene: Raspberry pie 3B+ camera is official: , , , , : mmal: mmal_vc_port_enable: failed to enable port vc.null_sink:in:0(OPQV): ENOSPC mmal: mmal_port_enable: failed to enable connected port (vc.null_sink:in:0(OPQV))0x16b90b0 (ENOSPC) mmal: mma...
contact with raspberry pie script file for the first time, this is downloaded on github, why report not found s fault? function install_module { -sharp src=$1 mod=$2 if [[ -d var lib dkms $mod $ver $marker ]]; then -sharp rmdi...
openwrt: there is also a 17 lede-17.01.5-brcm2708-bcm2710-rpi-3-ext4-sdcard.img are all stuck here. What s the reason? am I in the wrong place? Light cat-routing-raspberry pie -desktops, etc. ...
when the raspberry pie 3 is plugged into the power supply, only the red light is on, and the CPU temperature is very high, and then plugging in the monitor does not respond, so it cannot enter the system, even if the SD has been rewritten many times. Is ...
if you want to build a gitlab, you don t want to use someone else s server, just like your own. Many great gods on the Internet say they have built it. but I don t know much about this. I m a front-end player. Linux knows and has deployed some web...
For root users, cd to the directory, as follows: [{user} @ {system} {dirname}]-sharp , for example: [root@VM_44_196_centos mnt]-sharp but after executing su www , you can only see bash-4.2 $. How can the current directory name of cd also appear...
there is a table, the requirement is that the header is fixed, tbody can slide. Because the overflow-y is not valid for the tbody tag, the outer layer adds the div, to the div and the {overflow-y: scroll;overflow-x: hidden;-webkit-overflow-scrolling: tou...
the requirement is: if the name of the array is the same, compare which timestamp, is larger to retain which, and remove the smaller one. The array is as follows: var arr = [ {name: "", timestamp: 1537243392}, {name: "", tim...
such as the title, the responsive principle is clearly understood in the article, but how do model and view interact? Vue source code can not find the getElementByXX. I don t know if you have any good information links for browsing. I would like to kno...
tags, how do you extract the content you want?
main problem: the front-end code of the web page is very messy, all are tags, python crawler extraction content is very uncomfortable, BeautifulSoup4 is very difficult to locate, ask for your guidance, how to do in such a situation? URL: http: eshu....