b = {}

for i=,  do

    b[i] = i

end

-- method one

for i, v in pairs(b) do

    print (i, v)

end

-- method two

for i, v in ipairs(b) do

    print (i, v)

end

-- method three

for i = , #b  do

    print (i, b[i])

end

-- method four

for i = , table.maxn(b) do

    print (i, b[i])

end