随笔分类 -  Lua

Lua script Language
Java+Redis 通过Lua 完成库存扣减,创建消息队列,异步处理消息--实战
摘要:需要完成功能 借助redis Stream 数据结构实现消息队列,异步完成订单创建,其中涉及到了缓存(击穿,穿透,雪崩),锁(Redisson),并发处理,异步处理,Lua脚本 IDE:IDEA 2022 1、读取库存数据 【Lua】 2、判断库存 【Lua】 3、扣减库存 【Lua】 4、创建队列 阅读全文

posted @ 2023-03-15 16:26 hztech 阅读(826) 评论(1) 推荐(1)

Lua 垃圾回收
摘要:Lua 内存垃圾回收,是自动完成的,不需要人工处理。 垃圾回收有两种模式: 1、增量式(Incremental) 有三个参数 1)、garbage-collector pause, 什么时间执行,比上次回收后内增加的比例 默认200% 最大1000% 2)、garbage-collector ste 阅读全文

posted @ 2023-03-07 15:30 hztech 阅读(336) 评论(0) 推荐(0)

Lua 学习-10 元表metaTable
摘要:2.4 – Metatables and Metamethods Every value in Lua can have a metatable. This metatable is an ordinary Lua table that defines the behavior of the ori 阅读全文

posted @ 2023-03-07 13:34 hztech 阅读(45) 评论(0) 推荐(0)

Luau学习--8 Function call 函数
摘要:2.5.8 – Function Calls A function call in Lua has the following syntax: functioncall ::= prefixexp args In a function call, first prefixexp and args a 阅读全文

posted @ 2023-03-05 15:43 hztech 阅读(209) 评论(0) 推荐(0)

Lua--学习--7 Table 构建
摘要:2.5.7 – Table Constructors Table constructors are expressions that create tables. Every time a constructor is evaluated, a new table is created. A con 阅读全文

posted @ 2023-03-05 13:31 hztech 阅读(33) 评论(0) 推荐(0)

Lua 学习--6 运算
摘要:2.5.1 – Arithmetic Operators Lua supports the usual arithmetic operators: the binary + (addition), - (subtraction), * (multiplication), / (division),  阅读全文

posted @ 2023-03-05 11:31 hztech 阅读(20) 评论(0) 推荐(0)

Lua学习--5 表达式
摘要:2.5 – Expressions The basic expressions in Lua are the following: exp ::= prefixexp exp ::= nil | false | true exp ::= Number exp ::= String exp ::= f 阅读全文

posted @ 2023-03-05 11:00 hztech 阅读(24) 评论(0) 推荐(0)

Lua学习--4
摘要:结构控制 2.4.4 – Control Structures The control structures if, while, and repeat have the usual meaning and familiar syntax: stat ::= while exp do block e 阅读全文

posted @ 2023-03-04 22:43 hztech 阅读(27) 评论(0) 推荐(0)

Lua学习--3
摘要:变量 Variables are places that store values. There are three kinds of variables in Lua: global variables, local variables, and table fields. A single na 阅读全文

posted @ 2023-03-04 22:20 hztech 阅读(26) 评论(0) 推荐(0)

Lua 学习---2
摘要:值和类型 Lua is a dynamically typed language. This means that variables do not have types; only values do. There are no type definitions in the language. 阅读全文

posted @ 2023-03-04 17:57 hztech 阅读(24) 评论(0) 推荐(0)

学习Lua--1
摘要:1、标识符 Names (also called identifiers) in Lua can be any string of letters, digits, and underscores, not beginning with a digit. Identifiers are used t 阅读全文

posted @ 2023-03-04 15:49 hztech 阅读(41) 评论(0) 推荐(0)

lua 安装
摘要:https://www.lua.org 下载 压缩文件 上传到linux /opt/software 解压 到 /opt/module/ tar -zxvf xx -C /opt/module/ cd lua-5.4.4/ make make install done! 交互式 输出 hello w 阅读全文

posted @ 2023-02-27 12:38 hztech 阅读(65) 评论(0) 推荐(0)

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