Cuda 8.0 for ubuntu17.10

Hello there,
I have tried to find a link to downloading Cuda 8 for Ubuntu 17.10 but still could not.
please explain me what the best version of Cuda for Ubuntu 17.10 in order to using in Tensor flow??
please answer and give me the link belongs to downloading and installing it??
Thank you in advanced for guiding me.

Ubuntu 17.10 is not officially supported by any CUDA version, currently. CUDA 9.1 supports 17.04:

http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements

If you want to use CUDA 8, look at the linux install guide for CUDA 8, and follow the instructions. Choose a system that meets the system requirements section, for best conditions.