--Our variable is this
var="a"
--and we cant use it in a function it gives we an error
function abc()	print(var)
end
abc()
--Output: Error
--We can make it a global variable with using _G. method
_G.var2="b"
function cba()	print(_G.var2)
end
cba()
--Output: b

--These are variables
variable = "Hi"
print(variable)
--now you will see in the output Hi when you have press the button play