numpy.load() numpy.save() numpy.savez() 函数作用

numpy.load(file, mmap_mode=None, allow_pickle=False, fix_imports=True, encoding='ASCII')[source]

Load arrays or pickled objects from .npy, .npz or pickled files.

 

函数：

npy文件（二进制文件），npz文件（压缩文件）

numpy.load(file，mmap_mode=None, allow_pickle=True, fix_imports=True, encoding='ASCII')
从 .npy, .npz or pickled files读取文件

numpy.save(file,arr,allow_pickle=True,fix_imports=True)  将数组以.npy形式存储在二进制文件中

numpy.savez(file,args,kwds) 以.npz格式将多个数组保存到单个文件中

 

举例：

Store data to disk, and load it again:

>>>
np.save('/tmp/123', np.array([[1, 2, 3], [4, 5, 6]]))
np.load('/tmp/123.npy')
array([[1, 2, 3],
       [4, 5, 6]])
Store compressed data to disk, and load it again:

>>>
a=np.array([[1, 2, 3], [4, 5