This section describes the lexis, the syntax, and the semantics of Lua. In other words, this section describes which tokens are valid, how they can be combined, and what their combinations mean. The language co
A break ends the innermost enclosing loop. The return statement is used to return values from a function or a chunk (which is handled as an anonymous function). Functions can return more than one value, so the syntax for the return statement is stat ::= return [explist] [‘;’] The ...
functionfoo ()return--<< SYNTAX ERROR--'return' is the last statement in the next blockdoreturnend--OK...--statements not reachedend 函数: 语法: functionfunc_name (arguments-list) statements-list;end; Lua函数实参和形参的匹配与赋值语句类似,多余部分被忽略,缺少部分用nil补足。 Lua函数支持多个值...
-So, the condition can refer to local variables -declared inside the loop block. - - - -The return statement is used to return values -from a function or a chunk (which is just a function). - -Functions and chunks can return more than one value, -and so the syntax for the return...
lj_err_throw(L, LUA_ERRSYNTAX); } pt = bc ? lj_bcread(ls) : lj_parse(ls); fn = lj_func_newL_empty(L, pt, tabref(L->env)); /* Don't combine above/below into one statement. */ setfuncV(L, L->top++, fn);
In addition, Lua is the script language of the LÖVE2D game engine, Roblox and Wireshark, so learning it can be useful. The Lua syntax does not rely on indentation and is quite readable. The main drawbacks of Lua are its poor standard library and the difficulty to add libraries. Actuall...
Lua的发行版包括一个独立的嵌入式程序,lua,他使用Lua的扩展库来提供一个完全的Lua解释器。 Lua是自由软件,通常不提供任何担保,如它的版权说明中叙述的那样。 手册中描述的实现在Lua的官方网站可以找到,www.lua.org。 如果需要知道Lua设计背后的一些决定和讨论,可以参考以下论文,它们都可以在Lua的网站上找到。
BasicSyntax.lua--#!/usr/bin/lua-- 告诉操作系统所使用lua解释器的路径(这里是Linux系统路径) -- 这里是单行注释 --[[ 这里是 多行注释 ]] --[=[ 这里是 多行注释 ]=] -- 代码块 (使用关键字) if (true) then result = "这里会输出,1" pri ...
Lua 是一门强大、轻量的嵌入式脚本语言,可供任何需要的程序使用。Lua 没有 "main" 程序的概念: 它只能 嵌入 一个宿主程序中工作.宿主程序可以调用函数执行...
callback function is passed a table representation of the current row for each iteration of the loop. Syntaxof each row is: { \["column\_name\_1"\] = "value\_1", \["column\_name\_2"\] = "value\_2" }. Ifyou (optionally) return a number other than 0 from the callback-...