python保存数据的各种方式比较（磁盘空间，时间消耗）

Npy and binary files are both really fast and small for dense data. If the data is sparse or very structured, you might want to use npz with compression, which’ll save a lot of space but cost some load time.
If portability is an issue, binary is better than npy. If human readability is important, then you’ll have to sacrifice a lot of performance, but it can be achieved fairly well using csv (which is also

python保存数据的各种方式比较（磁盘空间，时间消耗）最先出现在Python成神之路。