Lua多维表创建

Question

我在 Lua 中有一个多维表，但我似乎无法创建它以便在 Lua 中使用？

桌子

items ::= {

        {["category"]="tools", ["name"]="hammer", ["price"]=10,  ["quantity"]=5 },
        {["category"]="tools", ["name"]="saw", ["price"]=15,  ["quantity"]=4 },
        {["category"]="tools", ["name"]="screwdriver", ["price"]=4,  ["quantity"]=12 },
        {["category"]="tools", ["name"]="measuring tape", ["price"]=9,  ["quantity"]=3 },
        {["category"]="tools", ["name"]="pliers", ["price"]=10,  ["quantity"]=5 },
        {["category"]="tools", ["name"]="wrench", ["price"]=10,  ["quantity"]=5 },


        {["category"]="fasteners", ["name"]="nails", ["price"]=.1,  ["quantity"]=1500 },
        {["category"]="fasteners", ["name"]="screws", ["price"]=.2,  ["quantity"]=1200 },
        {["category"]="fasteners", ["name"]="staples", ["price"]=.05,  ["quantity"]=2000 },

}

错误：<代码>'<名称>'期望靠近“：”

Answer 1

::= 有点奇怪。看起来你正在做 ASN.1 而不是 Lua 。

试试这个：

items = {

        {["category"]="tools", ["name"]="hammer", ["price"]=10,  ["quantity"]=5 },
        {["category"]="tools", ["name"]="saw", ["price"]=15,  ["quantity"]=4 },
        {["category"]="tools", ["name"]="screwdriver", ["price"]=4,  ["quantity"]=12 },
        {["category"]="tools", ["name"]="measuring tape", ["price"]=9,  ["quantity"]=3 },
        {["category"]="tools", ["name"]="pliers", ["price"]=10,  ["quantity"]=5 },
        {["category"]="tools", ["name"]="wrench", ["price"]=10,  ["quantity"]=5 },


        {["category"]="fasteners", ["name"]="nails", ["price"]=.1,  ["quantity"]=1500 },
        {["category"]="fasteners", ["name"]="screws", ["price"]=.2,  ["quantity"]=1200 },
        {["category"]="fasteners", ["name"]="staples", ["price"]=.05,  ["quantity"]=2000 },

}

当我使用它时，我在 Lua shell 中得到以下内容：

for k,v in pairs(items) do for k1,v1 in pairs(v) do print(k1,v1) end end
price   10
quantity    5
name    hammer
category    tools
price   15
quantity    4
name    saw
category    tools
price   4
quantity    12
name    screwdriver
category    tools
price   9
quantity    3
name    measuring tape
c    ategory    tools
price   10
quantity    5
name    pliers
category    tools
price   10
quantity    5
name    wrench
category    tools
price   0.1
quantity    1500
name    nails
category    fasteners
price   0.2
quantity    1200
name    screws
category    fasteners
price   0.05
quantity    2000
name    staples
category    fasteners

Answer 2

这是创建表格的一种方法。

function create_table()
    local l={} -- Initialize table.
    l[0]=[[]] -- Clear nil @ index 0.
    return l
end
t=create_table()
print(t) -- Prints table which is stored in memory.
--[[
    If you don't want to create everyday tables, you can use this matrix.
]]--
m={{["id"]=1},{["id"]=2,["name"]="Mr. Anon",["leet"]=1337}}
print(m[1]["id"]..", "..m[2]["id"]..", "..m[2]["name"]..", "..m[2]["leet"]..".")


# Table creation #
## Introduction ##
### How to guide ###