lua 5 3

Lua learning Note 3 Android calls Lua. The Lua script calls back Java using loadlib and transmits multiple parameters. Multiple parameters can be received in Java and each parameter is displayed. The method for loading the Lua script in Android is not the focus of this arti

not executed immediately. Therefore, programs with high real-time requirements will call the Garbage Collector by themselves. * Load and execute the Lua program, which can also be implemented by Lua itself * Any functions that Lua can implement can be implemented through Lua's c API, which is helpful for optimizing program running speed. the commonly called part

Refer to the self-built. This article records how to build the best coding environment for Lua scripts in the MAC system environment with powerful Code Completion and compilation and running. The sublime text editor is used here. The following describes in detail: (1) download sublime text Note that the version is 2.0.2 and sublime text 2. (2) install the Lua environment (the latest version is used here:

the same table as `a'　　print(b["x"]) --> 10　　b["x"] = 20　　print(a["x"]) --> 20　　a = nil -- now only `b' still refers to the table　　b = nil -- now there are no references left to the table Both B and a point to the same table and only occupy one piece of memory. When a = NIL is executed, B still points to table, When B = NIL is executed, Lua Automatically releases the memory occupied by the table because it does not point to the table variable.

Lua basics [5] I/O file operations, lua Basics -- [Lua file operation-related I/O] ---- You can specify to open a file in a specific directory. If the file does not exist, -- lua will help us create this file under the directory you specified, provided that the directory exi

-(void) Touchesbegan: (nonnull nssetAlgorithmic entry[Self func2:9];}Calculate factorial factor (m) = m!-(int) factor: (int) m{int factornum=0;if (m==0|m==1)return 1;else{Factornum=m*[self Factor:m-1];NSLog (@ "%d", factornum);return factornum;}}Calculate Func1 (m) = 1! +3! +5! + ... +m!-(int) func1: (int) m{int sum=0;for (int i=1; iSum +=[self factor:i];}NSLog (@ "%d", sum);return sum;}Calculate final and

/wKioL1RGpdHSkzvoAAS4LwqyVUM952.jpg "Title =" initpintu.png "alt =" wkiol1rgpdhskzvoaas4lwqyvum952.jpg "/> 3.2 usage > Create a scene scenario that contains the gamelayer layer: gamelayer: createscene () > Create a gamelayer layer -----------:Gamelayer: Create () > The Custom initialization function Init () is also called when gamelayer is created () > The member variables of the class are all in the ctor () . 3.3 download code Http://down.51cto.com/data/1886438 This article is from the "s

Introduction In Lua, a variable must be declared in code before it is used, that is, the variable is created. This is because the compiler needs to know how to open a store for a statement variable before the compiler executes the code to store the value of the variable. Variable Type There are three types of variables in LUA: Global variables, local variables, and fields in the table. The variables in

CentOS 5.x install Lua 5.2.3 error (MYLIBS =-lncurses) When Lua 5.2.3 is installed in CentOS 5.x, the following error occurs: # Make linux Gcc-o lua. o liblua. a-lm-Wl,-E-ldl-lreadline/Usr/lib/gcc/x86_64-RedHat-linux/4.1.2/.../../lib64/libreadline. so: undefined reference to

This article focuses on the string Cache Management in Lua (the file lstring. c involved ). Among the nine Data Types of Lua, the string is a type that can be recycled by GC. In Lua, the Operation string is actually referenced in the Operation string. When the character string is not used, GC will be recycled by some algorithm. -- Lua9 data types: # Define lua_

#!/usr/bin/env python# Coding:utf-8Import Redef Dealwith (Express): Express.replace ('+-','-') Express.replace ('--','+') returnexpressdef Col_suanshu (exp):if '/' inchexp:a,b= Exp.split ('/') returnStrfloat(a)/float(b))if '*' inchexp:a,b= Exp.split ('*') returnStrfloat(a) *float(b) def get_no_barcate (Express): Express=express.strip ('()') Print ('>>>', Express) whileTrue:ret= Re.search ("-?\d+\.? \d*[*/]-?\d+\.? \d*", Express)ifRet:res=Col_suanshu (Ret.group ()) Express= Ex

Table is the only data structure in LUA, and table allows you to implement modules, packages, and objects (object) representations. For example, IO in Io.read is a module, and read is an index in the IO module (using the string "read" as the index of the Read method). Only one reference to Tabel is held in the program (just like a static variable). (1) The constructor of table. a stereotype is an expression that is used to create and initialize a ta

Date: 2014.8.11part IV the c api 29 user-defined types in C In the previous example, we have introduced how to extend Lua by writing functions in C. In this chapter, we will introduce how to use C to write new types to extend Lua, and use features such as meta methods to implement this function. This chapter describes how to use an example. The example implements a simple type: Boolean arrays. This function

After completing the Virtual Machine and compiler, we made a comparison with lua5. The comparison results are quite frustrating. My virtual machine can only reach Lua's speed of more than half. So I read a piece of lua5 source code very unconvinced. I used to read the Lua source code for a while, and even Lua 4 and lua5 were read in different periods. Of course, I also know the huge difference. In fact, for

C functions: assume that there is a C function accessed during the process from the resume status to other statuses, Lua cannot store the status of the C function for the next resume of resume. Here is an example: e.g.co = coroutine.wrap(function ( a ) return pcall(function ( x ) coroutine.yield(x[1]) return x[3