Concise examples of function writing in Lua

Source: Internet
Author: User
Tags function definition lua

This article mainly introduces a concise example of function writing in Lua, this article is a personal learning note, a simple record of the LUA function, the need for friends can refer to the

function definition: Defines functions with keyword function, ending with keyword end

Local variables: Defined with the keyword locals. If the definition is not defined locally, even the variable defined within the function is a global variable!

function can have multiple return values: A,b,c ...

Parallel Assignment: A,b=c,d

Global variables: The preceding code defines three global variables: FOO,R1,R2

This is the first LUA function I wrote:

Copy code code as follows:

function foo (a,b,c)

Local Sum=a+b

Return sum,c--a function can have multiple returned values

End

R1,r2=foo (1, ' 123 ', "Hello")--parallel assignment

Print (R1,R2)

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