best way to loop in lua code example

Example 1: lua for loop

-- For K,V in table
for k,v in pairs(tbl) do
 print(k)
 print(v)
end
-- For i=0, num
for i=0, num do
 print(i)  
end

Example 2: lua how to make a loop

for init,max/min value, increment
do
   statement(s)
end