官网下载cuDNN（是一个压缩包），解压后把文件合并到CUDA安装目录里
路径：
C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.0\bin C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.0\extras\CUPTI\libx64 C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v10.0\include
测试：
nvcc -V
结果：
nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2018 NVIDIA Corporation Built on Sat_Aug_25_21:08:04_Central_Daylight_Time_2018 Cuda compilation tools, release 10.0, V10.0.130