将字符串写的table转换成Lua可以识别的table

-- 字符串转table
local function stringToTable(str)
    local b = loadstring("return "..str);
    t = b();
    return t
end

local str = "{{0, 0}, {3.0, 0}, {-3.0, 0}, {0, -3.0}, {3.0, -3.0}, {-3.0, -3.0}, {0, 3.0}}"

stringToTable(str)

 
打印出来的结果就是一个lua可以识别的Table数据