Блог

У меня есть многомерная таблица в Lua, но я не могу создать ее, чтобы иметь возможность использовать в Lua?

Таблица

 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 },

}
  

Ошибка: '<name>' expect near ':'

Это ::= немного странно. Похоже, что вы используете ASN.1 вместо Lua.

Попробуйте это вместо:

 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 },

}
  

Когда я использую это, я получаю следующее в оболочке Lua:

 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
  

Вот способ, которым вы могли бы создавать таблицы.

 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 ###