Programmer Think

1, The concept of Hook function 1.1 reasons for hook introduction The operation mechanism of Python is dynamic calculation graph. After the operation of dynamic graph, some intermediate variables (such as the gradient of feature map and non leaf node) will be released, but sometimes we need to obtai ...

1. Blocking and non blocking Traditional IO flows are blocking. That is, when a thread calls read() or write(), the thread is blocked until some data is read or written, and the thread cannot perform other tasks during this period. Therefore, when the network communication is completed for IO operat ...

This is the author's series of online security self-study course, mainly about the online notes of online security tools and practical operations. I'd like to share it with you and make progress together. The previous article shared the first step of Web penetra ...

Simple online installation of single node K8S using YUM warehouse Experimental environment: Using system: CentOS 7.4 Name role IP address centos7-min2 master 192.168.142.220 centos7-4 node 192.168.142.136 Experimental steps: 1, Configuration step directory master configuration node configuration Test results 2, master configuration ...

1, The role of flannel 1. The main function of CNI network plug-in is to realize POD resources can be trusted across hosts #test-nodes1 host cannot ping the pod container of test-nodes2 host [root@test-nodes1 ~]# kubectl get pods -o wide NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NOD ...

Overview of IO - what is IO (input, output) - what is a set of orderly data sets with start and end points, such as file flow, network flow, etc - difference from file: file is a static data presentation, and flow is a dynamic concept The operation of data in Java is carried out in the way of flow. The ...

Article directory .into(*) 1,Target 2,Request 3,track() 3.1 life cycle 3.2 requestTracker.runRequest(Request) 4,DecodeJob.run() 5,ModelLoader 6,HttpUrlFetcher 7, cache 8. Load picture summary Final personal summary .into(*) This method is very complex, you have to look at the source code sev ...

1. Preface Recently, we are using vue and springboot to develop a project, which has a function of using markdown editor to write articles. In it, images will be uploaded. At the beginning, the images can't be displayed. However, by looking at all kinds of data, we have finally made it. Now I'll talk ...

This is an infinite dimensional array template of any object, which can realize multiple functions and do many things. The explicit dynamic construction or analysis of the generic instantiated object has a micro memory recycling method that can be used to efficiently multi-dimensional operations, such a ...

##On the self-cultivation of a reptile 2 (the first example uses Python to download a cat, and the second example uses Python to simulate the browser's text translation through online Daoist translation.) ##Download a cat in Python        http://placekitten.com/ , this website is a customized site for M ...