Programmer Group

thinking First of all, prepare a picture. Both the local picture and the network picture can be used as your background picture. Currently, the applet does not support screenshots. Here are the local pictures. wx.createCanvasContext(ා get the ID of the canvas) will be used drawImage(ා draw the picture onto the background pict ...

Preface: before (87) WiFi & DHCP Combing the DHCP process, now combing the next process with WiFi state machine.   Preparatory work: grab the log from Xiaomi mix2 8.0 WiFi state machine to the beginning of ObtainingIpState and the end of ConnectedState. 09-01 21:09:28.135 1561 2457 D WifiStateMachine: enter ObtainingIp ...

Custom virtual machine installation 1, Create a virtual switch Principle: call dnsmasq to provide DNS, DHCP and other functions Create configuration file / etc/libvirt/qemu/networks/vbr.xml <network> <name>vbr</name> <bridge name="vbr"/> <forward mode="nat"/> <ip address="192.168.1.2 ...

1. Background Copy above Handwritten MQ Framework (3) - Client Implementation , which previously implemented mq as a server and client via the web, now plans to use netty to transform it.A while ago, I learned how to use netty (https://www.w3cschool.cn/netty4userguide/52ki1iey.html).There are probably some ideas. netty encapsulates the use of s ...

Using rnn to fit delay and inversion sequences In fact, the rnn of this layer is not as good as full connection. When the sequence length is too long, the number of last full connection nodes needs to be increased. However, if the sequence is relatively short, there are too many parameters and the result is very accurate.... Scroll the sequen ...

Original blog address Usage scenarios The user requests an operation in the background and does not respond for a long time. We want to give the user an information display (request timeout, bad network...) . RxJS implementation About RxJS Here My implementation of this function mainly uses two operators: delay and race. ...

1, An overview of gradient descent algorithm 1, introduction gradient descent, also known as the steepest descent, is the most commonly used method to solve unconstrained optimization problems. It is an iterative method. The main operation of each step is to solve the gradient vector of the objective function, taking the negative gradient direc ...

1. BugRepot phenomenon 17: 01:21-11:01:49 18h 0m 28s 601ms, power consumption (94% - 81% = 13%) 2. Analysis of power consumption 2.1 com.tencent.mtt has been in the foreground process in standby test Top app Aug 21 2018 22:16:11 - 22:17:12 +5h25m58s859ms to +5h26m59s438ms active duration: 1m 0s 579ms 1 occurences ...

rndc tools: TCP / UDP 53 port for dns Service TCP 953 port for rndc management dns Service Main functions: check cache status, clear cache, query operation status details, restart service, Only HMAC-MD5 authentication algorithm is supported, and shared key is used at both ends of communicatio ...

1. Add dependency dependencies { compile 'com.github.bumptech.glide:glide:3.7.0' compile 'com.android.support:support-v4:23.2.1' } 2. Usage ImageView imageView = (ImageView)findViewById(R.id.imageView) Glide.with(this) .load(url)//Picture address .crossFade()//Open animation //.dontAnimate()//Close ...