Lua读取CSV文件到table中

function GetLines(fileName)
indx = 0
myLines ={}
for line in io.line(string.format("%s%s", "c:/lua_scripts/",filename)) do
indx = indx + 1
myLines[indx] = line
end
return indx, myLines --returns number of lines and line table
end

function GetValues(myString)
num = 0
values = {}
if myString ~= nil then
while string.find(myString, ",") ~= nil do
i, j =string.find(myString, ",");
num =num + 1;
values[num] = string.sub(myString, 1, j-1);
myString = string.sub(myString, j+1, string.len(myString))
end
num = num + 1
values[num] = myString
end
return num, values
end