Programmer Think

What is Memcached? Memcached is a distributed memory cache server for caching data base Query results, reduce the number of database visits, improve the speed and scalability of dynamic web pages. Characteristics of Memcached a. Simple protocol, Memcached uses simple text line protocol b. Event handling based on libevent&nbs ...

Introduction This week, we mainly do page design and code writing. In the previous two days, we mainly did the following work: Preliminary Design of Pages and Logical Interaction Design Client Code Writing Background Coding Next, I will introduce the registration function, which is part of my work in writing client code. Registration fun ...

Principle analysis The general logic of token is that the login interface obtains a token and refresh_token for refreshing token. In the next token request, all interfaces need to carry the token request so that the server can verify that the source of the request is legitimate. This token is timeliness, the server will give him a timeliness ...

1. CIFAR-10 Cifar-10 is a data set collected by Alex Krizhevsky and Ilya Sutskever, two disciples of Hinton, for universal object recognition. Cifar is an advanced science project institute led by the Canadian government. Hinton, Bengio and his students received a small amount of money from Cifar in 2004 to build neurocomputing and ada ...

Convolutional Neural Network (CNN) has made great progress in the field of computer vision, but in addition, CNN has gradually gained ground in the field of Natural Language Processing (NLP). Taking text categorization as an example, this paper introduces a basic method of using convolutional neural network in the field of NLP. 0. Text ...

This function is described in the title: under the simultaneous opening of wifi and mobile data network, the system did not provide such APIs to achieve this function well before Android 5.0. Now, when wifi is on, forcing network requests to be sent through the mobile data network may feel that there is no such need. I think that as long as yo ...

map flatmap Case: Getting User Information after Logging in map operator Map applies a function of your choice to each data transmitted by the original Observable, and then returns an Observable that emits the results. This sentence summarizes the role of map, and then does not understand the meaning of this sentence. Understand it through t ...

Original address Look at it. Write in front Some time ago, I wrote something about the weather. The choice of cities in the provinces and cities (counties) made me very headache. Most of the searches on the Internet relied on plug-ins or third-party libraries. I felt that the code would be very heavy, so I simply realized several ways ...

Original Address https://github.com/jindada/blog/issues/1 Why private NPMS need to be built Private packages only want to be used internally, not git+ssh, feel less elegant, and configure the appropriate permissions Packet download on npm is very slow. To cache the downloaded packages on the server, first check for updates on the next dow ...

3 small test knife, compiling performance testing tools As a back-end developer, he must have the ability of system performance evaluation and analysis, because only when he knows the overall performance of the system well, can he know when the system needs to be expanded and where the performance bottlenecks need to be optimized. This chapter ...