Programmer Think

Previous The article explains how to parse an input expression into multiple Token s through a regular form, and the core of this article is how to evaluate the expression.The expressions we enter, that is, the expressions we usually see, are infix expressions - the meaning of infix is that in an expression, the operator is placed in the middle ...

Introduction to GMSSL Project Home Page: http://gmssl.org/ github: https://github.com/guanzhi/GmSSL GMSSL windows + vs2010 compilation Compile and install: http://gmssl.org/docs/install.html Windows is compiled as follows: Compilation error 1. base58.c error C2057: Constant expression should be entered The following errors were mad ...

When crawling websites, we encounter verification codes, so what methods do we have for the program to automatically identify verification codes? In fact, there are many coding platforms on the Internet, but all of them need money. But it is a waste to access the coding platform only by crawling data points. So Baidu's free orc is just availabl ...

Another approach is to apply angular single page to realize non-routing single page Jump by dynamically generating component method and cooperating with tabView component of primeNG UI Library Dynamic Component Loader Templates for components will not always be fixed. Applications may need to load some new components during runtime. T ...

Share with you the problems encountered in the project Development Environment: Android Studio Classes used in the project (key): SoundPool Project github address: https://github.com/zw21544182/BtMusicDemo Key knowledge used in the project: 1. Base Class Extraction (abstract)BaseActivity 2. Singleton mode - SoundPoolUtil 3.SoundPool cla ...

The blog Garden is a very good place to learn knowledge. I believe there are many people like me who have been in the blog Garden for 3 years. They do not know how many codes they have copied or how many blogs they have read, but they have never written a single blog.It's a crime. This time I'm going to write a few articles about the reading an ...

From February 2015 to IT industry, it has been nearly two years. From the beginning of java to the front end, we have been groping along the way. All the way to now, the front-end God is absolutely impossible to talk about. At most, it is a beginner. From the beginning of ignorance, to now learning to write github, blog, in fact, there is not m ...

Guide reading We have learned the basic usage of strings, arrays, hash tables, integers, floating-point numbers, but we are still unable to cope with some complex scenarios. Variable modifier is a very unique concept in zsh. It operates on variables with functions similar to functions, but it is more convenient to use. Complex functions in a li ...

listloading.js Listloading is a pull-up and pull-down loading of more components on the mobile side. It mainly depends on the components developed on the basis of iscroll.js v5.1.2. The base library can use jquery.js or zepto.js to operate DOM nodes. At present, I use zepto.js as the base library to operate dom, which exists in the form of ...

The project has a control that imitates the floor switching on the map, though not very familiar with it. But Baidu still has some good examples. I haven't written a blog for a long time, so I encapsulated this control and put it in it. My GitHub. Controls can achieve the following functions: Set the number of entries displayed by ListView ...