Basil1:
I have code for this library (for .h and .CPP files)
Where did you get this mysterious code? Post a link to where it is located online. Use the chain links icon on the toolbar to make the link clickable.
Basil1:
but don't know how to ulpoad it into the arduino library.
I do, but I can't give you instructions because you're being so vague.
Basil1:
and put it into /library/dht/
Where are those folders?
Basil1:
I am getting error massage about dht library.
Oh goody, a mysterious error message too! Well if you actually want help from us don't you think it might be a good idea to actually post the full contents of the error message? If you ever decide to do that then be sure to use code tags (</> button on the toolbar).