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能够在Lua中使用？

表

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: '<name>' expect near ':'

Answer 1

这::=有点奇怪.看起来你在做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