io.read() not excecuting
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- Subject: io.read() not excecuting
- From: Richard Gelling <blackheart40@...>
- Date: 2016年2月13日 10:55:23 +0000
Hi
I am just starting to learn Lua but have run in to something which I can’t seem to figure out. In messing around with an example from a book I have wrote the following code:
function fact(n)
if n==0 then
return 1
else
if n < 0 then
return n * fact(n+1)
elseif n > 0 then
return n * fact(n-1)
else
return nil
end
end
end
continue = true
while continue == true do
io.write("Enter a number: ")
a = io.read("*n") -- reads a number ( this works fine )
print(fact(a))
print("Do you want to enter another number? (y/n) ")
response = io.read() - - this never executes
if response == "y" then
continue = true
else
continue = false
end
end
I think I might have altered something which stops the second io.read() , response = io.read(),from being executed and the program just finishes without allowing the user to input a response.
It has worked in that it has gone as far as allowing input, but would not recognise ‘y’ of ’n’ as when watching the variable when you type in ‘y’ or ’n’ the variable actually has ‘\ny’ or ‘\nn’ stored in it. Any help would be greatly appreciated as I seem to have run into a brick wall!
Thanks for any help
Richard Gelling