table iteration problem

[Victor Young <littlehaker@...>]

For example, I have following codes:

t = {

x=1,

y=2,

a=3,

b=4

}

for k, v in pairs(t) do

print(k, v)

end

then the output is:

y       2

x       1

a       3

b       4

If I want the output to be like follow:

x       1

y       2

a       3

b       4

just in the order of how I construct the table, how could I do? Thanks!