Programmer Think

1. redis uses lua script syntax Redis Eval command - execute Lua script redis 127.0.0.1:6379> eval "return {KEYS[1],KEYS[2],ARGV[1],ARGV[2]}" 2 key1 key2 first second 1) "key1" 2) "key2" 3) "first" 4) "second" among Script: the parameter is a Lua 5.1 script program. A script need not (and should not) be defined as a Lua function. numkeys ...

Interaction principle of C# synergy and Lua synergy In Unity game development, C# language + lua language is a common development mode. This paper mainly studies the basic principle of the interaction between C# coprocess and lua coprocess. C #'s collaborative process C # coprocessor is essentially an iterator. (may be added later)yield ...

https://blog.csdn.net/y1196645376/article/details/94348873 1. Characteristics of table In Lua, table is a very important type. Many data structures can be realized by using some features of table, such as map, array, queue, stack, etc.From the perspective of users, table can be used as both array and map. For designers, it is necessary to ens ...

Business scenario The document number format generated by handling business in different regions must be: current month and year + 5 digits, and the number increases from 00001. The initial solution is to generate self increasing sequences, but because there are too many regions to complete a sequence in each region, this scheme will not w ...

Test pm (sleep management) function with 724 development board brief introduction When using the module, we often pay attention to the power consumption of the module. This example teaches you how to use the 724 development board to test the sleep management function of the module stores reserve EVB_Air724UG_A13 A set of development boa ...

Code cloud code link https://gitee.com/wenwenc9/lua_pro.git 1, require Module is similar to a package library. Starting from Lua 5.1, Lua has added a standard module management mechanism, which can put some common code in one file and call it elsewhere in the form of API interface, which is conducive to code reuse and reduce code coupli ...

shield-ratelimiter Redis based distributed current limiting Toolkit In the distributed field, we will inevitably encounter a sudden increase in concurrency, which will cause high pressure on back-end services, and even lead to system downtime. To avoid this problem, we usually add current limiting, degradation, fusing and other capabilities to ...

1 Introduction to multi-level cache architecture In any project, we have some frequent queries, and the frequent query data are basically the same. For example, in the project, we view user personal information, shopping Carnival query activity information. These function points are used frequently, and we generally need to deal with the ...

If you write a bug management system and use this PeriodLimit, you can limit each tester to only mention one bug to you every day. Is work much easier P The essential reason for the popularity of microservice architecture today is to reduce the overall complexity of the system and spread the system risks to subsystems, so as to maximize the ...

preface Use nginx + nginx a few days ago_ upload_ Module + python (callback handler) builds a simple file server. Many people on the Internet recommend using Lua to extend the functions of nginx, so they ponder how to use Lua language to expand the functions of nginx. After consulting many materials on the Internet, they find that the environm ...