调用select 时,必须传入一个固定实参 selector(选择开关) 和一系列变长参数。如果 selector 为数字 n,那么 select 返回参数列表中从索引n开始到结束位置的所有参数列表,否则只能为字符串#,这样 select 返回变长参数的总数。 dofunctionfoo(...)fori=1, select('#', ...)do-->获取参数总数localarg=select(...
table.concat (table [, sep [, start [, end]]]):concat是concatenate(连锁, 连接)的缩写. table.concat()函数列出参数中指定table的数组部分从start位置到end位置的所有元素, 元素间以指定的分隔符(sep)隔开。 table.insert (table, [pos,] value):在table的数组部分指定位置(pos)插入值为value的一个元素...
一部分的table函数只对其数组部分产生影响, 而另一部分则对整个table均产生影响. 下面会分开说明. table.concat(table, sep, start, end)concat是concatenate(连锁, 连接)的缩写. table.concat()函数列出参数中指定table的数组部分从start位置到end位置的所有元素, 元素间以指定的分隔符(sep ...
--创建一个空的tablelocaltbl1={}--直接初始表localtbl2={"apple","pear","orange","grape"} Lua 中的表(table)其实是一个"关联数组"(associative arrays),数组的索引可以是数字或者是字符串。 不同于其他语言的数组把 0 作为数组的初始索引,在 Lua 里表的默认初始索引一般以 1 开始。 localtbl={"appl...
1 table.concat (table [, sep [, start [, end]]]):concat是concatenate(连锁, 连接)的缩写. table.concat()函数列出参数中指定table的数组部分从start位置到end位置的所有元素, 元素间以指定的分隔符(sep)隔开。 2 table.insert (table, [pos,] value):在table的数组部分指定位置(pos)插入值为value的一...
The logging functions concatenate data more efficiently than operator .. does, so for best performance, do log:debug("Welcome ", first_name, ", thanks for visiting us ", time_of_day) rather than log:debug("Welcome " .. first_name .. ", thanks for visiting us " .. time_of_day) ...
diff --git a/Sysbench4RedisAndMot/lib/luasocket-3.1.0/.editorconfig b/Sysbench4RedisAndMot/lib/luasocket-3.1.0/.editorconfig new file mode 100644 index 0000000000000000000000000000000000000000..56ad87df5238054533a8fb2ae3959ef2b531cdf7 --- /dev/null +++ b/Sysbench4RedisAndMot/lib/luasocket-...
How to get length of a string using strlen function? What's the limit on string length? How to concatenate strings in Lua? What is the length of a piece of string? Find the string length of a Lua number? Question: This may seem like an easy question, but despite searching, I could...
Escapes a Lua value int a valid SQL fragment that can be safely concatenated into a query string.Neverconcatenate a variable into query without escaping it in some way, or you may open yourself up toSQL injection attacks. This function is aware of the following Lua value types: ...
Escapes a Lua value int a valid SQL fragment that can be safely concatenated into a query string.Neverconcatenate a variable into query without escaping it in some way, or you may open yourself up toSQL injection attacks. This function is aware of the following Lua value types: ...