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

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

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

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

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

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

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

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

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

摘要： 在开始之前 ，先把结论留下： 要想真正用于生产环境，推荐使用 Redisson 实现分布式锁！ <dependency> <groupId>org.redisson</groupId> <artifactId>redisson</artifactId> <version>3.19.3</versio 阅读全文