QuickLuaTour翻译流水账(1-10)

-- Example 1  -- First Program.-- Classic hello program.print("hello")-------- Output ------hello-- 例子 1  -- 第一个程序.-- 经典的 hello 程序-- Example 2    -- Comments.-- Single line comments in Lua start with double hyphen.--[[ Multiple line comments startwith double hyphen and two square brackets.  and end with two square brackets. ]]-- And of course this example produces no-- output, since it's all comments!-------- Output -------- 例子 2       -- 注释-- 在语句前加2个连号即是单行注释--[[ 在前面加2个连号和两个方括号，在后面加两个方括号即是多行注释]]-- 当然这个例子程序不会有任何输出，因为都是注释！-- Example 3  --  Variables.-- Variables hold values which have types, variables dont't have types.a=1b="abc"c={}d=printprint(type(a))print(type(b))print(type(c))print(type(d))------ Output -------numberstringtablefunction-- 例子 3  --  变量-- 变量持有拥有类型的值，变量本身没有类型------ Output --------- Example 4  -- Variable name.-- Variable names consist of letters, digits and underscores.-- They cannot start with a digit.one_two_3 = 123  -- is valid variable name-- 1_two_3 is not a valid variable name.------  Output  --------- 例子 4  -- 变量名-- 变量名由字母，数字和下划线组成-- 它们不能以数字开头one_two_3 = 123  -- 是合法的变量名-- 1_two_3 不是合法的变量名-- Example 5  -- More Variable names.-- The underscore is typically used to start special values.-- like _VERSION in Lua.print(_VERSION)-- So don't used variables that start with _,-- but a single underscore _ is often used as a -- dummy variable.------- Output -------Lua 5.1-- 例子 5  -- 变量名称续集-- 要开始一个特殊的变量，通常以下划线开头-- 例如Lua中的_VERSIONprint(_VERSION)-- 所以不要使用下划线来命名变量-- 但是以一个下划线命名的变量通常用来充当哑变量-- Example 6  -- Case Sensitive-- Lua is case sensitive so all variable names & keywords-- must be in correct case.ab=1Ab=2AB=3print(ab,Ab,AB)------ Output ------1      2       3-- 例子6  -- 大小写的区分-- Lua是区分大小写的，所以所有的变量名和关键字都必须正确的大小写-- Example 7  -- Keywords-- Lua reserved words are: and, break, do, else, elseif,-- end, false, for, function, if, in, local, nil, not, or,-- repeat, return, then, true, until, while.-- Keywords cannot be used for variable names,-- 'and' is a keyword, but AND is not, so it is a legal variable name.AND=3print(AND)------ Output ------3-- 例子 7  -- 关键字-- Lua 保留字如下：and, break, do, else, elseif,-- end, false, for, function, if, in, local, nil, not, or,-- repeat, return, then, true, until, while.-- 关键字不能作为变量名-- ‘and'是关键字，但是AND不是，所以这是个合法的变量名-- Example 8  -- Strings.a="single 'quoted' string and double \"quoted\" string inside"b='single \'quoted\' string and double "quoted" string inside'c = [[ multiple linewith 'single'and "double" quoted strings inside.]]print(a)print(b)print(c)------- Output ------single 'quoted' string and double "quoted" string insidesingle 'quoted' string and double "quoted" string inside multiple linewith 'single'and "double" quoted strings inside.-- 例子 8   -- 字符串不译。如果字符串用单引号包裹，在串中的单引号需要转义；用双引号同理；[[ 多行注释 ]]-- Example 9  -- Assignments-- Multiple assignments are valid.-- var1,var2=var3,var4a,b,c,d,e = 1, 2, "three", "four", 5print(a,b,c,d,e)------ Output ------1     2        three   four     5-- 例子9  -- 赋值-- 多重赋值是合法的-- Example 10  -- More Assignments.-- Multiple assignments allows one line to swap two variables.print(a,b)a,b=b,aprint(a,b)------ Output -------- 例子 10  -- 赋值续集-- 多重赋值允许使用一行语句交换2个变量的值